{"title":"Astrophotography Telescopes","description":"\u003cp\u003eExplore telescopes designed for astrophotography, from compact wide-field astrographs and flat-field refractors to advanced optical systems for detailed deep-sky imaging. Discover dedicated imaging telescopes from leading astronomy brands, chosen for sharp stars, reliable performance and compatibility with modern cameras and accessories.\u003cbr\u003e\u003c\/p\u003e","products":[{"product_id":"sharpstar-61edph-mark-ii-telescope-ultimate-astro-photography-tool","title":"SharpStar 61EDPH Mark II Telescope - Ultimate Astro Photography Tool","description":"\u003ch2\u003eThe Ultimate Portable Astro Photo and Nature Photography Instrument!\u003c\/h2\u003e\n\u003ch2\u003eSharpStar 61EDPH Mark II Telescope Features:\u003c\/h2\u003e\n\u003cp\u003e• 61MM f\/5.5 three-element full separation optical design\u003cbr\u003e• Includes one ED lens of Japanese Super ED lens\u003cbr\u003e• New 2.5\" dual-speed rack and pinion focuser, 10:1 fine focus\u003cbr\u003e• 2\" and 1.25\" universal interfaces\u003cbr\u003e• Angle adjuster for 360-degree rotation\u003cbr\u003e• Universal dovetail bar\u003cbr\u003e• Comes with a finderscope mounting bracket (shoe)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTesting Procedures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAt 365 Astronomy, we test 30-60% of the incoming Sharpstar and Askar telescopes (excluding smaller models). This ensures quality assessment for the batch, including focusing mechanisms, optical tubes, and accessories. We take test images with a full-frame DSLR to evaluate the telescope's performance. If we find issues, we collaborate with specialists to ensure your telescope meets high standards.\u003c\/p\u003e\n\u003cp\u003eThe SharpStar 61EDPH refracting telescope features a three-element design with one exotic ED lens, and multi-layer coatings that minimize internal reflections. It offers excellent observation and imaging capabilities thanks to its fast focal ratio.\u003c\/p\u003e\n\u003cdiv\u003eThe unique three-element design effectively controls chromatic aberration, resulting in sharp stars and vivid images. The 61EDPH includes a high-load dual-speed 2.5-inch rack and pinion focuser with a 1:10 aspect ratio, ensuring stability even with heavy accessories. The 360-degree rotator allows easy camera positioning for optimal framing. The 2-inch eyepiece holder features a brass compression ring to protect your accessories.\u003c\/div\u003e\n\u003cdiv\u003eThe dedicated tube rings have a hollow design for reduced weight, and the package includes a 10cm dovetail plate with a 1\/4\" photo thread for easy mounting on a tripod for daytime photography. The 61EDPH is competitively priced, making it a valuable tool for observation and imaging. Additionally, it can be equipped with a dedicated 2.3-inch field flattener for full-frame astrophotography, ensuring excellent image quality and reduced distortion at the edges.\u003c\/div\u003e\n\u003ch2\u003eDedicated Full-Frame Reducer (Optional Extra)\u003c\/h2\u003e\n\u003cp\u003eThe optional dedicated full-frame reducer is designed for the SharpStar 61EDPH and supports full-frame photography. It connects to the focuser and features a M48×0.75 thread for easy attachment. The three-element design minimizes vignetting, making it ideal for deep-sky astrophotography with a focal length of 275mm and a focal ratio of f\/4.5. The 360-degree rotator simplifies camera adjustments for perfect framing.\u003c\/p\u003e\n\u003ch2\u003eTechnical Parameters:\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAperture:\u003c\/strong\u003e 61mm\u003cbr\u003e\u003cstrong\u003eFocal Length:\u003c\/strong\u003e 335mm\u003cbr\u003e\u003cstrong\u003eFocal Ratio:\u003c\/strong\u003e 5.5\u003cbr\u003e\u003cstrong\u003eObjective Type:\u003c\/strong\u003e Three-element full separation composite achromatic\u003cbr\u003e\u003cstrong\u003eNet Weight:\u003c\/strong\u003e 1.42kg (excluding tube rings and dovetail plate)\u003cbr\u003e\u003cstrong\u003eTotal Weight:\u003c\/strong\u003e 1.80kg (including tube rings and dovetail plate)\u003cbr\u003e\u003cstrong\u003eResolution:\u003c\/strong\u003e 1.93 arc seconds\u003cbr\u003e\u003cstrong\u003eVisual Limit Star Rating:\u003c\/strong\u003e 10.7\u003cbr\u003e\u003cstrong\u003eMain Tube Outer Diameter:\u003c\/strong\u003e 80mm\u003cbr\u003e\u003cstrong\u003eTotal Length of Lens Barrel (Shortened):\u003c\/strong\u003e 235mm\u003c\/p\u003e\n\u003ch2\u003eSpot Diagram of the New Mark II Triplet Version:\u003c\/h2\u003e\n\u003cdiv\u003e\u003cimg alt=\"Spot Diagram of the SharpStar 61EDPH Mark II\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/sharpstar-61edph-mk-ii-ed-triplet-apochromatic-refractor-telescope-with-f-4.5-0.8x-reducer-flattener.webp\"\u003e\u003c\/div\u003e","brand":"Sharpstar","offers":[{"title":"Default Title","offer_id":42269763829937,"sku":"SHS-61EDPH-II","price":425.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sharpstar-61edph-mk-ii-578108.jpg?v=1718480276"},{"product_id":"sharpstar-76edph","title":"Sharpstar 76EDPH","description":"\u003ch3\u003eSharpstar 76EDPH: Advanced Optics for Astrophotography\u003c\/h3\u003e\n\u003cp\u003eThe Sharpstar 76EDPH is the second addition to the Sharpstar EDPH family. Known for its aesthetic appeal and compact design, it features a triplet air-spaced lens structure with ED (extra-low dispersion) glass, ensuring outstanding performance for both visual observation and astrophotography. This design effectively eliminates chromatic aberration, delivering detailed and high-contrast images.\u003c\/p\u003e\n\u003cp\u003eWith a 76mm aperture and a focal length of 418mm, the Sharpstar 76EDPH achieves a fast focal ratio of f\/5.5. Its compactness, with a tube length of only 332.9mm when the dew shield is contracted, makes it an ideal companion for travel. This telescope easily fits into travel bags and can be taken on planes, offering convenience for outdoor sky observation.\u003c\/p\u003e\n\u003cp\u003eThe Sharpstar 76EDPH’s precise optical and mechanical design ensures high performance. It also comes with a dedicated 2.5\" f\/4.5 full-frame reducer, elevating it among high-end, fast-focal-ratio astrographs.\u003c\/p\u003e","brand":"Sharpstar","offers":[{"title":"Default Title","offer_id":42269764255921,"sku":"76EDPH","price":865.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sharpstar-76edph-892755.jpg?v=1718480277"},{"product_id":"sharpstar-94edph","title":"SharpStar 94EDPH f\/5.5 Triplet ED APO Telescope","description":"\u003ch1\u003eExperience Unparalleled Precision with the SharpStar 94EDPH f\/5.5 Triplet ED APO Telescope\u003c\/h1\u003e\n\u003cdiv id=\"saf-detail-0\" class=\"cbox-57 p_loopItem\"\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cdiv id=\"ce_detail-277242\" data-layout=\"flow\" class=\"ce_detail\"\u003e\n\u003cdiv id=\"ie_grid-1672716903228\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv id=\"content_ie-1672716903228-0\" class=\"e_box e_box-000 d_gridCell_0 p_gridCell\"\u003e\n\u003cdiv id=\"ie_grid-1672716903233\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv id=\"content_ie-1672716903233-0\" class=\"e_box e_box-000 d_gridCell_0 p_gridCell\"\u003e\n\u003cdiv id=\"ie_fimg-1672716903238\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"长友气体\" width=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/78db62cb-d591-482f-9ae6-4e213ea15c49.jpg\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_line-1672716903483\" class=\"ie_line\"\u003e\n\u003cspan\u003e \u003c\/span\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_text-1672716903488\" class=\"reset_style\"\u003e\n\u003cp\u003e\u003cspan\u003eThe brand new 94EDPH is the third type of this Sharpstar EDPG family. Its aperture size is 94mm and the focal length is 517mm, thus the focal ratio is f\/5.5. 94EDPH is designed with triplet air-spaced APO lens structure, including two pieces of ED(extra-low dispersion) glass, which empowers the astragraph to achieve more effective aberration amendment thus to produce more accurate images. With its innate compactness, fashionable appearance, and above all, superb quality, Sharpstar 94EDPH can be applied to both high-end sky-observation and sophisticated astrophotograph.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe reducer can reduce the original focal ratio to f\/4.4, supporting full-frame imaging, opening up for our customers more possibilities in exploring the universe.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSharpstar 94EDPH must be an ideal choice, worthy of consideration, if you are looking for a large-aperture, fast-focal-ratio, quality and lightweight APO refractive telescope.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1672716903493\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"长友气体\" width=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/c21e814e-4158-4a4b-bddb-c5f0b1bf7d25.jpg\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1672716903498\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"长友气体\" width=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/ed095bf5-c15f-4433-9391-c5cbfcb3f671.jpg\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"saf-detail-1\" class=\"cbox-57 p_loopItem\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003ctable width=\"84.20%\" cellspacing=\"0\" align=\"center\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003e94EDPH Parameters\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eAperture size\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e94mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e517mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal ratio\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ef\/5.5\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eObjective lens\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eTriplet air-spaced APO (two is made of ultra-low dispersion ED glass)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eLimiting magnitude\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e11.62\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003e1.28 arc-seconds\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eTube length overall\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e468mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eMain tube diameter\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e118mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e3.3KG\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eAccessories\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ea pair of tube rings, a dovetail plate, a handle\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable width=\"84.20%\" cellspacing=\"0\" align=\"center\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eSpot Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cimg alt=\"长友气体\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460166674\/cms\/image\/81fe14cd-4978-41f1-8ef2-a8a235f7e9ce.jpg\" id=\"1699622928933486592\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"saf-detail-3\" class=\"cbox-57 p_loopItem\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eImages\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix response-transition\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cimg alt=\"长友气体\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/c6b13c98-8ad2-47da-946c-cd100a8b3cc5.jpg\" id=\"1669163569029316608\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eGiacomoPro76  |  SH2-224  |  Sharpstar 94EDPH + ZWO ASI294MC Pro  |  Optolong L-Ultimate 2\"\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"长友气体\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/c8e79bec-f262-463e-a61d-25f663734401.jpg\" id=\"1669163568256274432\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eGiacomoPro76  |  SH2-132  |  Sharpstar 94EDPH + ZWO ASI294MC Pro  |  Optolong L-Ultimate 2\"\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"长友气体\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460166674\/cms\/image\/6ac66ce7-c3b3-4ee6-b5c4-d0437515c505.jpg\" id=\"1699618353923121152\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSimone Curzi  |  the Soul and Heart Nebulae  |  Sharpstar 94EDPH + ZWO ASI2600MM Pro\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eDiscover the extraordinary imaging capabilities of the brand new SharpStar 94EDPH. As the latest addition to the renowned EDPG family, this cutting-edge scope boasts a 94mm aperture and a focal length of 517mm, resulting in an impressive f\/5.5 focal ratio. Engineered with a triplet air-spaced APO lens structure, including two ED glass elements, the 94EDPH excels in correcting aberrations for unparalleled image accuracy.\u003c\/p\u003e\n\u003cp\u003eCapture the wonders of the universe with absolute precision using the SharpStar 94EDPH. Its 94mm aperture and 517mm focal length provide optimal light gathering and superb imaging capabilities. With its advanced triplet air-spaced APO lens design, featuring two ED glass elements, this astrophotography scope delivers exceptional aberration correction, ensuring images of remarkable clarity and accuracy.\u003c\/p\u003e\n\u003cp\u003eUnleash your astrophotography potential with the SharpStar 94EDPH. Its superior optics, combined with its impressive specifications, make it the ultimate tool for capturing stunning celestial images. Immerse yourself in the awe-inspiring beauty of the cosmos and unlock a new level of precision in your astrophotography endeavors.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable height=\"432\" align=\"center\" cellspacing=\"0\" width=\"487\" id=\"gpt4-chat-selected-text-parent-node\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 532.4px;\" colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003e94EDPH Parameters\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 123.675px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eAperture size\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 405.125px;\" colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e94mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 123.675px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eFocal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 405.125px;\" colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e517mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 123.675px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eFocal ratio\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 405.125px;\" colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ef\/5.5\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 123.675px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eObjective lens\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 405.125px;\" colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eTriplet air-spaced APO (two is made of ultra-low dispersion ED glass)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 123.675px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eLimiting magnitude\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 405.125px;\" colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e11.62\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 123.675px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 405.125px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e1.28 arc-seconds\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 123.675px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eTube length overall\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 405.125px;\" colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e468mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 123.675px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eMain tube diameter\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 405.125px;\" colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e118mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 123.675px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 405.125px;\" colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e3.3KG\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 123.675px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eAccessories\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 405.125px;\" colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ea pair of tube rings, a dovetail plate, a handle\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Sharpstar","offers":[{"title":"Default Title","offer_id":42269775986865,"sku":"94edph","price":1409.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sharpstar-94edph-f55-triplet-ed-apo-telescope-489309.jpg?v=1718480276"},{"product_id":"sharpstar-z4-100mm-f5-5-sextuplet-apo-astrograph-ota","title":"Sharpstar Z4 100mm f\/5.5 Sextuplet APO Astrograph OTA","description":"\u003ch1\u003eSharpstar Z4 100mm f\/5.5 Sextuplet APO Astrograph OTA\u003c\/h1\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSharpstar Z4 100mm f\/5.5 Sextuplet APO Astrograph\u003c\/strong\u003e is designed for astrophotographers who demand precision, portability, and superb optical performance. With a fully corrected field, this fast astrograph eliminates the need for a separate field flattener, delivering sharp, pinpoint stars right to the edge of your frame.\u003c\/p\u003e\n\u003cp\u003eLightweight and \u003cstrong\u003eeasy to carry and assemble\u003c\/strong\u003e, the Sharpstar Z4 is equally at home on a portable mount or a permanent observatory setup.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sharpstar-z4-100mm-f55-sextuplet-apo-astrograph-ota-745781.jpg?v=1718364959\" alt=\"Sharpstar Z4 100mm f\/5.5 Sextuplet APO Astrograph OTA\"\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e100mm Sextuplet APO design\u003c\/strong\u003e – six optical elements for exceptional colour correction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ef\/5.5 fast focal ratio\u003c\/strong\u003e – gather more light in less time for deep-sky astrophotography.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e300mm Vixen-style dovetail plate\u003c\/strong\u003e – secure and reliable mounting for most equatorial mounts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision focuser\u003c\/strong\u003e with smooth \u003cstrong\u003efocusing and angle adjustment\u003c\/strong\u003e for accurate framing and fine focus control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-frame imaging circle\u003c\/strong\u003e – perfect for modern CMOS and DSLR cameras.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact and portable\u003c\/strong\u003e – ideal for travel or field use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBenefits for Astrophotographers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCapture stunning wide-field nebulae and galaxies with excellent star sharpness.\u003c\/li\u003e\n\u003cli\u003eSave time with a built-in flattener — no extra accessories required.\u003c\/li\u003e\n\u003cli\u003eLightweight OTA ensures \u003cstrong\u003eeasy setup, focusing, and framing\u003c\/strong\u003e even on mid-range mounts.\u003c\/li\u003e\n\u003cli\u003eCompatible with standard accessories thanks to its \u003cstrong\u003eVixen-style dovetail plate\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sharpstar-z4-100mm-f55-sextuplet-apo-astrograph-ota-283716.jpg?v=1718364959\" alt=\"Sharpstar Z4 100mm f\/5.5 Sextuplet APO Astrograph OTA\"\u003e\u003c\/p\u003e\n\u003ch2\u003eWhat’s Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSharpstar Z4 100mm f\/5.5 Sextuplet APO Astrograph OTA\u003c\/li\u003e\n\u003cli\u003eCNC-machined tube rings and handle\u003c\/li\u003e\n\u003cli\u003e300mm Vixen-style dovetail plate\u003c\/li\u003e\n\u003cli\u003eCarry case for transport and storage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAperture: 100mm\u003c\/li\u003e\n\u003cli\u003eFocal Length: 550mm\u003c\/li\u003e\n\u003cli\u003eFocal Ratio: f\/5.5\u003c\/li\u003e\n\u003cli\u003eOptical Design: Sextuplet APO (6 elements)\u003c\/li\u003e\n\u003cli\u003eBack Focus: 55mm\u003c\/li\u003e\n\u003cli\u003eWeight: Approx. 5.5kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Choose the Sharpstar Z4?\u003c\/h2\u003e\n\u003cp\u003eWhether you’re imaging from a dark-sky site or your backyard, the Sharpstar Z4 delivers professional-grade results with ease. Its \u003cstrong\u003eoptical quality, portability, and versatility\u003c\/strong\u003e make it one of the best choices for astrophotographers seeking wide-field precision in a compact design.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sharpstar-z4-100mm-f55-sextuplet-apo-astrograph-ota-482696.jpg?v=1718364959\" alt=\"Sharpstar Z4 100mm f\/5.5 Sextuplet APO Astrograph OTA\"\u003e\u003c\/p\u003e\n\u003c!-- Optional FAQ Section with FAQ Schema --\u003e\n\u003cdiv class=\"faq-section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eDoes the Sharpstar Z4 require a field flattener?\u003c\/h3\u003e\n\u003cp\u003eNo. The Z4 is a sextuplet design with a built-in flattener, providing a flat imaging field across full-frame sensors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eWhat type of dovetail plate does it include?\u003c\/h3\u003e\n\u003cp\u003eThe Sharpstar Z4 comes with a 300mm Vixen-style dovetail plate for secure mounting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eIs the Sharpstar Z4 easy to transport?\u003c\/h3\u003e\n\u003cp\u003eYes. At only 5.5kg and supplied with a carry case, the Z4 is lightweight and easy to carry and assemble.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sharpstar","offers":[{"title":"Default Title","offer_id":42290260279473,"sku":"Sharpstar-Z4","price":2149.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sharpstar-z4-100mm-f55-sextuplet-apo-astrograph-ota-558466.jpg?v=1758101028"},{"product_id":"askar-fra400-f-5-6-with-focal-reducer-to-attain-f-3-9-1","title":"Askar FRA400 Astrograph Flat-Field f\/5.6 to f\/3.9 Telescope","description":"\u003ch2\u003eAskar FRA400 Flat-Field Astrograph \u003c\/h2\u003e\n\u003cp\u003eThe Askar FRA400 is part of the acclaimed Askar FRA (Flat-field Refractive Astrograph) series, designed for high-quality astrophotography and visual observation. With built-in flat-field correction and excellent control of chromatic aberration, the FRA400 delivers sharp, colour-accurate stars from centre to edge — even on full-frame sensors.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S7a53e74235064d989c198f58cfc86d87s.jpg\" alt=\"Askar FRA400 Telescope\" style=\"width: 100%; max-width: 900px; margin: 20px auto; display: block;\"\u003e\u003c\/p\u003e\n\u003ch2\u003eFlat-Field Design for Full-Frame Imaging\u003c\/h2\u003e\n\u003cp\u003eThe FRA400 optical system uses a premium 5-element design with a built-in field flattener. This means no need for additional spacing or back-focus adjustments — simply connect your camera and capture perfectly flat star fields every time.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S66f0dd4fc74c4669ac1fc3d324c4de8e6.png\" alt=\"Askar FRA Optical Design\" style=\"width: 100%; max-width: 900px; margin: 20px auto; display: block;\"\u003e\u003c\/p\u003e\n\u003ch2\u003eFast and Flexible Imaging Performance\u003c\/h2\u003e\n\u003cp\u003eAt its native focal ratio of \u003cstrong\u003ef\/5.6\u003c\/strong\u003e, the FRA400 is already fast enough for nebulae, galaxies, and wide-field deep-sky imaging. The included \u003cstrong\u003efocal reducer\u003c\/strong\u003e takes this even further — reducing the system to \u003cstrong\u003ef\/3.9\u003c\/strong\u003e for dramatically shorter exposure times and an even wider field of view.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S264365ce2a734e6e9a8b4f9508e2ce1ax.jpg\" alt=\"Askar FRA400 Tube Rings\" style=\"width: 100%; max-width: 900px; margin: 20px auto; display: block;\"\u003e\u003c\/p\u003e\n\u003ch2\u003ePractical Mounting and Rig Setup\u003c\/h2\u003e\n\u003cp\u003eThe FRA400 includes stylish, patented tube rings featuring multiple accessory mounting points. This makes attaching guide scopes, mini PCs, dew heaters, and focus motors simple and stable — perfect for both field and observatory use.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Scb918ea7a69a4e8a8c24bbcf0951b1bad.jpg\" alt=\"Askar FRA400 Setup\" style=\"width: 100%; max-width: 900px; margin: 20px auto; display: block;\"\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFlat-field astrograph design for imaging — no additional flattener required\u003c\/li\u003e\n\u003cli\u003eIncludes focal reducer to reach an ultra-fast \u003cstrong\u003ef\/3.9\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFull-frame imaging circle — sharp stars edge to edge\u003c\/li\u003e\n\u003cli\u003eExcellent chromatic aberration control\u003c\/li\u003e\n\u003cli\u003eStrong, stylish tube rings with multiple accessory mounting points\u003c\/li\u003e\n\u003cli\u003eIdeal for deep-sky imaging and visual observation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Choose the Askar FRA400?\u003c\/h2\u003e\n\u003cp\u003eThe Askar FRA400 is engineered to make astrophotography simpler, faster, and more reliable. Whether you're capturing colourful nebulae, galaxy fields, or expansive wide-field shots, the FRA400 delivers stunning results with minimal setup complexity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExplore the universe with clarity, speed, and precision.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr style=\"margin: 30px 0;\"\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":42380668174513,"sku":"ASKR-FRA400","price":1260.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-fra400-f56-with-focal-reducer-to-attain-f39-142123.webp?v=1782295039"},{"product_id":"askar-fra500-f-5-6-quintuplet-astrograph-apo","title":"Askar FRA500 90mm f\/5.6 Quintuplet Flat-Field APO Astrograph","description":"\u003ch2 data-mce-fragment=\"1\" class=\"title page-title\"\u003eAskar FRA500 f\/5.6 Quintuplet Astrograph APO Refractor Telescope\u003c\/h2\u003e\n\u003cp\u003eThe Askar FRA500 belongs to the renowned FRA (Flat-field Refractive Astrograph) series. With a \u003cstrong\u003equintuplet, Petzval-like design\u003c\/strong\u003e including \u003cstrong\u003etwo ED elements\u003c\/strong\u003e, it delivers a naturally flat field and excellent chromatic correction for \u003cstrong\u003efull-frame astrophotography\u003c\/strong\u003e and refined visual observing.\u003c\/p\u003e\n\u003ch2\u003eHighlights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-element Petzval-style optical system\u003c\/strong\u003e (3+2) with two ED lenses for tight, colour-pure stars\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNative flat field\u003c\/strong\u003e—no external flattener or spacing math required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e90 mm aperture · 500 mm focal length · f\/5.6\u003c\/strong\u003e for deep-sky imaging \u0026amp; smaller targets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e55 mm image circle\u003c\/strong\u003e—covers full-frame sensors with edge-to-edge sharpness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust 3.5″ dual-speed focuser\u003c\/strong\u003e with clear graduations and finder base\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePortable:\u003c\/strong\u003e 410 mm retracted length, ~4.1 kg OTA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality control:\u003c\/strong\u003e 15-step QA and premium mechanical finish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eAccording to customer feedback, performance rivals or exceeds some higher-priced alternatives, while remaining compact for field use.\u003c\/em\u003e\u003c\/p\u003e\n\u003cfigure style=\"margin: 20px 0;\"\u003e\u003cimg style=\"width: 100%; max-width: 1200px; display: block; margin: 0 auto;\" height=\"931\" width=\"1600\" loading=\"lazy\" alt=\"Askar FRA500 quintuplet astrograph refractor—overview\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-fra500-f-5.6-quintuplet-astrograph-apo-apochromatic-refractor-telescope-1600pix.webp\"\u003e\n\u003cfigcaption style=\"text-align: center; margin-top: 8px;\"\u003eFRA500: flat-field astrograph optimised for full-frame imaging.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003ch2\u003eOptical Design \u0026amp; Field Correction\u003c\/h2\u003e\n\u003cp\u003eThe FRA500 inherits the \u003cstrong\u003eFRA series 3+2 lens group\u003c\/strong\u003e: a front triplet (two ED) controls CA and spherical aberrations, while a rear doublet sets the focal plane and flattens the field. The result is \u003cstrong\u003esharp stars to the edge\u003c\/strong\u003e with minimal tilt sensitivity and no back-focus puzzles.\u003c\/p\u003e\n\u003cfigure style=\"margin: 20px 0;\"\u003e\u003cimg style=\"width: 100%; max-width: 1200px; display: block; margin: 0 auto;\" height=\"848\" width=\"1200\" loading=\"lazy\" alt=\"Askar FRA500 optical and mechanical layout\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-fra500-f-5.6-quintuplet-astrograph-apo-apochromatic-refractor-telescope-2.webp\"\u003e\u003c\/figure\u003e\n\u003ch2\u003ePortable, Rigid, and Rig-Friendly\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e3.5″ focuser\u003c\/strong\u003e offers coarse and 1:10 fine adjustment with clear scale markings. A standard finder base simplifies adding a guider or accessories. The included \u003cstrong\u003etube rings, carry handle, and Losmandy-style dovetail\u003c\/strong\u003e support secure mounting and tidy cable runs—ideal for mobile imaging setups.\u003c\/p\u003e\n\u003cfigure style=\"margin: 20px 0;\"\u003e\u003cimg style=\"width: 100%; max-width: 1000px; display: block; margin: 0 auto;\" height=\"325\" width=\"1000\" loading=\"lazy\" alt=\"Askar FRA500 portable configuration with rings, handle and Losmandy plate\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-fra500-f-5.6-quintuplet-astrograph-apo-apochromatic-refractor-telescope-5.webp\"\u003e\u003c\/figure\u003e\n\u003ch2\u003eTech Specs\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; max-width: 900px; border-collapse: collapse; margin: 12px 0;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eAperture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eFocal Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e500 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eFocal Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003ef\/5.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eOptical Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eQuintuplet air-spaced APO (3+2), 2 × ED elements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eImage Circle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e55 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eBack Focus\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e158 mm from M48×0.75 (conical extender) · 85 mm from M86×1 (rotator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e452 mm (dew shield extended) · 410 mm (retracted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eWeight (OTA)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e≈ 4.1 kg · Gross ≈ 5.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eRear Thread\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eM86×1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eAdapter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eConical adapter to M48×0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eIncluded\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eFRA500 OTA, tube rings, handle, Losmandy-style plate, conical extender, manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cfigure style=\"margin: 20px 0;\"\u003e\u003cimg style=\"width: 100%; max-width: 1200px; display: block; margin: 0 auto;\" height=\"561\" width=\"1200\" loading=\"lazy\" alt=\"Askar FRA500 imaging configuration and details\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-fra500-f-5.6-quintuplet-astrograph-apo-apochromatic-refractor-telescope-3.webp\"\u003e\u003c\/figure\u003e\n\u003ch2\u003eWhat It’s Great For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFull-frame, wide-to-moderate field deep-sky imaging (nebulae, clusters, smaller galaxies)\u003c\/li\u003e\n\u003cli\u003ePortable rigs and remote trips where \u003cstrong\u003erigidity + speed + simplicity\u003c\/strong\u003e matter\u003c\/li\u003e\n\u003cli\u003eVisual observing with crisp, high-contrast views\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cfigure style=\"margin: 20px 0;\"\u003e\u003cimg style=\"width: 100%; max-width: 1200px; display: block; margin: 0 auto;\" height=\"1279\" width=\"1200\" loading=\"lazy\" alt=\"Askar FRA500 mechanical details and finish\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-fra500-f-5.6-quintuplet-astrograph-apo-apochromatic-refractor-telescope-4.webp\"\u003e\u003c\/figure\u003e\n\u003cfigure style=\"margin: 20px 0;\"\u003e\u003cimg style=\"width: 100%; max-width: 1000px; display: block; margin: 0 auto;\" height=\"751\" width=\"1000\" loading=\"lazy\" alt=\"Askar FRA500 accessories and included components\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-fra500-f-5.6-quintuplet-astrograph-apo-apochromatic-refractor-telescope-6.webp\"\u003e\u003c\/figure\u003e\n\u003chr style=\"margin: 30px 0;\"\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":42440202322097,"sku":"ASKR-FRA500F56","price":1950.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-fra500-f56-quintuplet-astrograph-apo-385352.webp?v=1782295052"},{"product_id":"askar-fra600-f-5-6-quintuplet-astrograph-apo","title":"Askar FRA600 f\/5.6 Quintuplet Astrograph APO","description":"\u003ch2\u003eAskar FRA600 f\/5.6 Quintuplet Astrograph APO Refractor Telescope\u003c\/h2\u003e\n\n\u003cp\u003eThe Askar FRA600 is a member of the FRA (Flat-field Refractive Astrograph) series, designed for full-frame astrophotography and refined visual observing. Its \u003cstrong\u003e5-element Petzval-like design\u003c\/strong\u003e with \u003cstrong\u003etwo ED elements\u003c\/strong\u003e provides a naturally flat field, excellent colour correction, and crisp, round stars across a generous \u003cstrong\u003e66 mm image circle\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eHighlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cstrong\u003e108 mm aperture • 600 mm focal length • f\/5.6\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuintuplet (3+2) APO\u003c\/strong\u003e optical layout with two ED lenses for tight, colour-pure stars\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNative flat field\u003c\/strong\u003e—no external flattener or spacing maths required\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e66 mm image circle\u003c\/strong\u003e—surpasses standard full-frame coverage\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLarge 4.2″ rack-and-pinion focuser\u003c\/strong\u003e with 1:10 micro-adjust and multi-thread adapters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePortable\u003c\/strong\u003e 493 mm length (dew shield retracted), robust rings, handle, Losmandy plate\u003c\/li\u003e\n  \u003cli\u003eQuality-assured mechanical finish and smooth operation under imaging payloads\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eCustomer feedback suggests performance comparable to, or exceeding, some higher-priced alternatives—while remaining practical for portable rigs.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cfigure style=\"margin:20px 0;\"\u003e\n  \u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fra600-f-5.6-quintuplet-astrograph-apo-apochromatic-refractor-telescope-3.webp\" alt=\"Askar FRA600 quintuplet astrograph overview\" loading=\"lazy\" width=\"1600\" height=\"931\" style=\"width:100%;max-width:1200px;display:block;margin:0 auto;\"\u003e\n\u003c\/figure\u003e\n\n\u003ch2\u003eWatch: Unboxing \u0026amp; Demonstration\u003c\/h2\u003e\n\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;max-width:740px;margin:0 auto;\"\u003e\n  \u003ciframe src=\"https:\/\/www.youtube.com\/embed\/saNRBS695Dc\" title=\"Askar FRA600 Quintuplet Astrograph Unboxing and Demo\" frameborder=\"0\" allowfullscreen style=\"position:absolute;top:0;left:0;width:100%;height:100%;\"\u003e\u003c\/iframe\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eOptical Design \u0026amp; Field Correction\u003c\/h2\u003e\n\u003cp\u003eLike the FRA400, the FRA600 uses a \u003cstrong\u003ePetzval-style 3+2 configuration\u003c\/strong\u003e: a front triplet (including two ED elements) manages aberrations; a rear doublet sets the focal plane and flattens the field. The 80 mm rear-group elements help maintain illumination, yielding \u003cstrong\u003eeven brightness and pinpoint stars\u003c\/strong\u003e across the frame.\u003c\/p\u003e\n\n\u003cfigure style=\"margin:20px 0;\"\u003e\n  \u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fra600-f-5.6-quintuplet-astrograph-apo-apochromatic-refractor-telescope-5.webp\" alt=\"Askar FRA600 optical and mechanical layout\" loading=\"lazy\" width=\"1200\" height=\"848\" style=\"width:100%;max-width:1200px;display:block;margin:0 auto;\"\u003e\n\u003c\/figure\u003e\n\n\u003ch2\u003eFocuser, Mechanics \u0026amp; Rig-Friendliness\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e4.2″ R\u0026amp;P focuser\u003c\/strong\u003e offers coarse and 1:10 fine control, clear graduations, and multiple thread options. The standard conical extension provides \u003cstrong\u003eM68×1\u003c\/strong\u003e, \u003cstrong\u003eM54×0.75\u003c\/strong\u003e and \u003cstrong\u003eM48×0.75\u003c\/strong\u003e connections (with 2″ filter holder), simplifying camera attachment and future-proofing your setup. Multifunction red-anodised \u003cstrong\u003etube rings\u003c\/strong\u003e include mounting points on three sides for guidescopes, controllers, and mini PCs.\u003c\/p\u003e\n\n\u003cp\u003eWith a tube diameter of 120 mm and a \u003cstrong\u003eretractable dew shield\u003c\/strong\u003e, the OTA measures \u003cstrong\u003e493 mm retracted\u003c\/strong\u003e, making it a practical choice for travel and remote imaging.\u003c\/p\u003e\n\n\u003cfigure style=\"margin:20px 0;\"\u003e\n  \u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fra600-f-5.6-quintuplet-astrograph-apo-apochromatic-refractor-telescope-6.webp\" alt=\"Askar FRA600 focuser, adapters and finish\" loading=\"lazy\" width=\"1200\" height=\"800\" style=\"width:100%;max-width:1200px;display:block;margin:0 auto;\"\u003e\n\u003c\/figure\u003e\n\n\u003ch2\u003eWhat It’s Great For\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eFull-frame deep-sky imaging with a moderate field (nebulae, clusters, smaller galaxies)\u003c\/li\u003e\n  \u003cli\u003ePortable rigs where \u003cstrong\u003erigidity, flat field, and simplicity\u003c\/strong\u003e are essential\u003c\/li\u003e\n  \u003cli\u003eHigh-contrast visual observing with minimal chromatic aberration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%;max-width:900px;border-collapse:collapse;margin:12px 0;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e\u003cstrong\u003eAperture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e108 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e\u003cstrong\u003eFocal Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e600 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e\u003cstrong\u003eFocal Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003ef\/5.6\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e\u003cstrong\u003eOptical Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eQuintuplet dual-ED air-spaced APO (Petzval-like 3+2)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e\u003cstrong\u003eImage Circle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e66 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e\u003cstrong\u003eBack Focus\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e160 mm from rotator M90×1 thread\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e493 mm (dew shield retracted)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e\u003cstrong\u003eOTA Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e~6.5 kg (TBC)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e\u003cstrong\u003eBack-End Threads\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eM108×1 (no rotator), M90×1; 2″ \u0026amp; 1.25″ eyepiece holders\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e\u003cstrong\u003eIncluded Adapters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eM90×1→M68×1, M68×1→M54×0.75, M54×0.75→M48×0.75 (with 2″ filter holder)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eFRA600 OTA with retractable dew shield\u003c\/li\u003e\n  \u003cli\u003ePair of tube rings with top handle\u003c\/li\u003e\n  \u003cli\u003eLosmandy-style dovetail bar\u003c\/li\u003e\n  \u003cli\u003eConical adapter set (thread converters + 2″ filter holder)\u003c\/li\u003e\n  \u003cli\u003e2″ to 1.25″ adapter (eyepiece holder)\u003c\/li\u003e\n  \u003cli\u003eInstruction manual \u0026amp; QC inspection list\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eGallery\u003c\/h2\u003e\n\u003cfigure style=\"margin:20px 0;\"\u003e\n  \u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fra600-f-5.6-quintuplet-astrograph-apo-apochromatic-refractor-telescope-4.webp\"\u003e\n    \u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fra600-f-5.6-quintuplet-astrograph-apo-apochromatic-refractor-telescope-4.webp\" alt=\"Askar FRA600 side profile and mechanical details\" loading=\"lazy\" width=\"1200\" height=\"900\" style=\"width:100%;max-width:1200px;display:block;margin:0 auto;\"\u003e\n  \u003c\/a\u003e\n\u003c\/figure\u003e\n\n\u003cfigure style=\"margin:20px 0;\"\u003e\n  \u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ip\/content\/askar-fra600-f-5.6-quintuplet-astrograph-apo-apochromatic-refractor-telescope-a.webp\"\u003e\n    \u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ip\/content\/askar-fra600-f-5.6-quintuplet-astrograph-apo-apochromatic-refractor-telescope-a.webp\" alt=\"Askar FRA600 accessories and adapters layout\" loading=\"lazy\" width=\"1200\" height=\"900\" style=\"width:100%;max-width:1200px;display:block;margin:0 auto;\"\u003e\n  \u003c\/a\u003e\n\u003c\/figure\u003e\n\n\u003chr style=\"margin:30px 0;\"\u003e\n","brand":"Askar","offers":[{"title":"Default Title","offer_id":42440205107377,"sku":"ASKR-FRA600F56","price":2699.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-fra600-f56-quintuplet-astrograph-apo-220225.webp?v=1782295065"},{"product_id":"askar-80phq-80mm-f-7-5-ed-apo-quadruplet","title":"Askar 80PHQ 80mm f\/7.5 ED APO Quadruplet – Dark Clear Skies","description":"\u003cp\u003e\u003cstrong\u003eThe Askar 80PHQ 80mm f\/7.5 ED APO Quadruplet Astrograph\u003c\/strong\u003e is a precision refractor telescope designed for high-resolution astrophotography. As the second long-focal-ratio model in the PHQ series, it combines advanced optical correction with a compact and mechanically robust design, making it an excellent choice for both experienced imagers and astrophotographers building a portable deep-sky imaging system.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-80phq-80mm-f-7.5-ed-apo-quadruplet-apochromatic-astrograph-refractor-telescope-1.webp?v=1772703956\" alt=\"Telescope with 'Askar' branding on a white background\"\u003e\u003c\/p\u003e\n\u003ch2\u003ePrecision Optical Design\u003c\/h2\u003e\n\u003cp\u003eThe 80PHQ uses a \u003cstrong\u003equadruplet 3+1 optical configuration\u003c\/strong\u003e incorporating \u003cstrong\u003etwo ED glass elements\u003c\/strong\u003e to deliver excellent colour correction and high contrast across the entire imaging field. Unlike traditional refractors that rely on an external field flattener, the PHQ optical system integrates the corrector directly into the telescope design.\u003c\/p\u003e\n\u003cp\u003eThis approach improves image quality by maintaining precise optical spacing between elements while reducing vignetting and maintaining sharp stars across large camera sensors. The result is a naturally flat imaging field capable of supporting \u003cstrong\u003emodern full-frame astrophotography cameras with a 44mm image circle\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWith a \u003cstrong\u003e600mm focal length and f\/7.5 focal ratio\u003c\/strong\u003e, the 80PHQ is well suited for imaging galaxies, planetary nebulae and smaller deep-sky objects that benefit from increased focal length and resolution.\u003c\/p\u003e\n\u003ch2\u003eCompact and Portable Astrograph\u003c\/h2\u003e\n\u003cp\u003eCompared with larger telescopes in the PHQ series, the 80PHQ offers a more compact and portable imaging solution. The optical tube measures only \u003cstrong\u003eapproximately 448mm in length\u003c\/strong\u003e and weighs \u003cstrong\u003earound 3.9kg\u003c\/strong\u003e, making it significantly easier to transport and mount than larger refractors.\u003c\/p\u003e\n\u003cp\u003eThis makes the telescope particularly attractive for astrophotographers using mid-range equatorial mounts or travelling to dark sky locations.\u003c\/p\u003e\n\u003cp\u003eDespite its compact size, the telescope retains the same high mechanical standards found throughout the PHQ range.\u003c\/p\u003e\n\u003ch2\u003eMechanical Construction\u003c\/h2\u003e\n\u003cp\u003eThe optical tube assembly features a durable ivory-white finish with green accents, a distinctive design used across the PHQ series. Precision CNC-machined tube rings securely hold the OTA while allowing quick adjustment without requiring additional tools.\u003c\/p\u003e\n\u003cp\u003eA robust \u003cstrong\u003e3-inch rack-and-pinion focuser\u003c\/strong\u003e provides smooth dual-speed focusing and excellent load capacity for modern imaging setups including filter wheels, cameras and guiding equipment.\u003c\/p\u003e\n\u003cp\u003eThe integrated rotator includes graduated markings that allow astrophotographers to precisely repeat camera orientation when returning to the same imaging target.\u003c\/p\u003e\n\u003ch2\u003eSimplified Astrophotography Setup\u003c\/h2\u003e\n\u003cp\u003eOne of the key advantages of the PHQ design is the integrated flat-field optical system. Unlike many refractor telescopes, the 80PHQ does not require an additional field flattener for imaging.\u003c\/p\u003e\n\u003cp\u003eThis simplifies system configuration by eliminating the need to calculate precise spacing between optical components. Astrophotographers can connect their imaging equipment directly using the supplied adapter system.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-80phq-80mm-f-7.5-ed-apo-quadruplet-apochromatic-astrograph-refractor-telescope-2.webp?v=1772703956\" alt=\"Askar 80PHQ telescope on a black background with branding and product details.\"\u003e\u003c\/p\u003e\n\u003ch2\u003eExample Astrophotography Result\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-80phq-80mm-f-7.5-ed-apo-quadruplet-apochromatic-astrograph-refractor-telescope-NGC2264.webp?v=1772703957\" alt=\"Glowing nebula with red and blue colors against a starry black background\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eImage credit: Andrea Maggi – NGC 2264\u003cbr\u003eCaptured using Askar 80PHQ with ZWO ASI6200 camera and Optolong 3nm filter.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAperture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e600mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ef\/7.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptical design\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eQuadruplet APO (two ED elements)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eImage circle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e44mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTube length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e450mm (dew shield retracted)\u003cbr\u003e540mm (dew shield extended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.9kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGross weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.7kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRear thread interfaces\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM76 ×1 → M68 ×1\u003cbr\u003eM68 ×1 → M54 ×0.75\u003cbr\u003eM54 ×0.75 → M48 ×0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum accessory connection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eImaging mode up to 168.5mm depending on adapter configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncluded accessories\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e80PHQ optical tube assembly, tube rings, handle, 300mm Vixen dovetail plate, four-piece photographic adapter set and manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-80phq-80mm-f-7.5-ed-apo-quadruplet-apochromatic-astrograph-refractor-telescope-5.webp?v=1772703956\" alt=\"Technical drawing of a askar 80phq with dimensions labeled\"\u003e \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-80phq-80mm-f-7.5-ed-apo-quadruplet-apochromatic-astrograph-refractor-telescope-6.webp?v=1772703956\" alt=\"Optical layout diagram of a askar 80phq    telescope with labeled components and dimensions.\"\u003e \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-80phq-80mm-f-7.5-ed-apo-quadruplet-apochromatic-astrograph-refractor-telescope-7.webp?v=1772703956\" alt=\"Graph showing pupil radius measurement with millimeter scale\"\u003e \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-80phq-80mm-f-7.5-ed-apo-quadruplet-apochromatic-astrograph-refractor-telescope-8.webp?v=1772703956\" alt=\"Spot diagram with measurement points and coordinates on a white background\"\u003e\u003c\/p\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":42440208023729,"sku":"ASKAR-80PHQ","price":1569.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-80phq-80mm-f75-ed-apo-quadruplet-726958.webp?v=1782294949"},{"product_id":"askar-107phq-107mm-f-7-ed-apo-quadruplet-apochromatic-refractor-2","title":"Askar 107PHQ 107mm f\/7 ED APO Quadruplet Apochromatic Refractor – Dark Clear Skies","description":"\u003ch2 data-mce-fragment=\"1\"\u003eASKAR 107PHQ 107mm f\/7 ED APO Quadruplet Apochromatic Refractor Telescope\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-107phq-107mm-f-7-ed-apo-quadruplet-apochromatic-refractor-telescope-1c.webp\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eAskar 107PHQ, a versatile all-rounder\u003cbr data-mce-fragment=\"1\"\u003eThe Askar 107PHQ can literally be applied in any conceivable situations, and that’s the top reason why 107PHQ is produced: to slash as much trouble for users as possible.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eASKAR 107PHQ ED APO quadruplet telescope features:\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• 107MM f\/6.5 three-element full separation optical design\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• Includes two ED lens elements\u003cbr data-mce-fragment=\"1\"\u003e• Built-in field flattener for full fram photography with 44mm image circle\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• Wide range of imaging connections: M68, M54, M48\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• New 3.4\" dual-speed rack and pinion focuser, 10:1 fine focus for up to 8kg payload\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e•  2\" and 1.25\" universal interfaces\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• Angle adjuster for 360 degree rotation\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• Universal (Vixen-style) dovetail bar with tube rings\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• Comes with a finderscope shoe\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003cdiv data-mce-fragment=\"1\" class=\"youtube-embed-wrapper\"\u003e\u003ciframe data-mce-fragment=\"1\" width=\"640\" src=\"https:\/\/www.youtube.com\/embed\/GlCOFG-kPUg\" height=\"360\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eAs the first long-focal-ratio Flatfield astrograph from Askar, 107PHQ is born with a special mission: whether you are just getting started in astrophotography, or an enthusiast who has been quite familiar with all equipment and devices, you can always find Askar 107PHQ a useful astrograph which is functionally practical and physically attractive.\u003cbr data-mce-fragment=\"1\"\u003eIt’s especially amateur or beginner friendly since you don’t need to attach an extra field flattener to get a satisfactory picture. And for the fact that you don’t need a flattener and you can easily get over back-focus calculation and confusing connection steps, all you need to do is to equip your 107PHQ with any possible imaging devices, make the target stay at the focus, and then the whole optical system is perfect for imaging.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-107phq-107mm-f-7-ed-apo-quadruplet-apochromatic-refractor-telescope-2c.webp\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eAskar 107PHQ can capture tiny star objects due to its 740mm focal length and astonishing field flattening capacity. When used Askar 107PHQ and a high-resolution camera, it can still bring out lots of detailed information of your target.\u003cbr data-mce-fragment=\"1\"\u003eAskar 107PHQ is also a nice choice for your visual observation. It fits 1.25\", 2\" zenith mirrors as well as various eyepieces and can achieve a perfect focus. It can even be used to observe planets with a super-high magnification eyepiece.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-107phq-107mm-f-7-ed-apo-quadruplet-apochromatic-refractor-telescope-3.webp\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eAskar 107PHQ, an f\/7 astrograph, contains four pieces of lenses including two pieces of ED glass, which can better reduce chromatic aberration. It can achieve excellent color correction even with the magnification mounting to 300× in visual observation.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-107phq-107mm-f-7-ed-apo-quadruplet-apochromatic-refractor-telescope-4.webp\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe sleek 107PHQ is assembled with high-quality CNC-machined components and wrapped with smooth coating. The calm and seriousness is offset by the bright green decorative rings or knobs. The 3.4\" rigid focuser is capable of handling a load of 8kg. It’s designed with a long travel distance of 95mm, which is suitable for visual observation. And it’s been optimized especially for astrophotography.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-107phq-107mm-f-7-ed-apo-quadruplet-apochromatic-refractor-telescope-5-copy.webp\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe built-in Flatfield lens is a great contribution to Askar 107PHQ’s imaging ability. It supports 44mm full-frame imaging. The stars around the corner of the images seldom suffer from distortion or deformation. At the center of its field of view, the RMS radius is merely 3um. Even a fastidious user can also be satiated when it comes to the shape of stars. Askar 170PHQ can effectively handle with problems of field curvature and vignette.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-107phq-107mm-f-7-ed-apo-quadruplet-apochromatic-refractor-telescope-6.webp\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe standard package includes an Askar 107PHQ OTA, a set of four-piece M86-M48 adapters, a pair of tube rings, a 300mm Askar Vixen-style dovetail plate and a high-quality aluminum suitcase.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-107phq-107mm-f-7-ed-apo-quadruplet-apochromatic-refractor-telescope-7.webp\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eSPECIFICATIONS\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAperture size：107mm\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFocal length：749mm\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFocal ratio：f\/7\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eObjective lens：Quadruplet air-spaced APO (including two ED glass)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eImage circle：44mm\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMaximum accessory connection (with the focuser fully retreated)：\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e1. Imaging mode:\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e79mm (from the base of M48×0.75 male thread)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e99mm (from the base of M54×0.75 male thread)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e119mm (from the base of M68×1male thread)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e149mm (from the base of M86×1 male thread)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2. Observing mode:\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e120mm (from the end of 2\" visual back)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTotal length：603mm（when the dew shield is contracted）\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e754mm（when the dew shield is stretched）\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eNet weight：5.7kg\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eGross weight：6.9kg\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eRear-end thread type：M86×1 to M68×1\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eM68×1 to M54×0.75\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eM54×0.75 to M52×0.75\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eM52×0.75 to M48×0.75（with M48×0.75 filter thread）\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFour-piece photographic adapter：M48×0.75\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eStandard package items：a 107PHQ OTA，a pair of tube rings, a handle, an Askar 300mm Vixen dovetail plate, a set of four-piece photographic adapters, a manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-107phq-107mm-f-7-ed-apo-quadruplet-apochromatic-refractor-telescope-8.webp\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-107phq-107mm-f-7-ed-apo-quadruplet-apochromatic-refractor-telescope-9.webp\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-107phq-107mm-f-7-ed-apo-quadruplet-apochromatic-refractor-telescope-10.webp\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-107phq-107mm-f-7-ed-apo-quadruplet-apochromatic-refractor-telescope-11.webp\" alt=\"\"\u003e\u003c\/p\u003e\n","brand":"Askar","offers":[{"title":"Default Title","offer_id":42440210841777,"sku":"ASKAR-107PHQ","price":2699.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-107phq-107mm-f7-ed-apo-quadruplet-apochromatic-refractor-602637.webp?v=1782294837"},{"product_id":"sharpstar-140ph-140mm-f-6-5-dual-ed-triplet-apo","title":"SharpStar 140PH 140mm f\/6.5 Dual ED Triplet APO","description":"\u003ch1\u003eSharpStar 140PH 140mm f\/6.5 Dual ED Triplet APO Apochromatic Refractor Telescope\u003c\/h1\u003e\n\u003ch2\u003eThe serious amateur's astro photo instrument with a pioneering (in this size) dual ED optical system. A fast triplet APO with 910mm focal length, with incredible colour correction, excellent choice for both astro photography and nature photography!\u003c\/h2\u003e\n\u003ch2\u003e\u003cspan\u003eFOR FULL FRAME IMAGING!\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch2\u003e\u003cspan\u003eIf the above is not enough, combine it with a dedicated 0.73x 3\" focal reducer and enjoy a super fast f\/4.8 Sextuplet APO!\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/sharpstar-140ph-140mm-f-6.5-dual-ed-triplet-apo-apochromatic-refractor-telescope-7.webp\"\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/sharpstar-140ph-140mm-f-6.5-dual-ed-triplet-apo-apochromatic-refractor-telescope-7.webp\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e365ASTRONOMY TESTING PROCEDURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe would usually test about 30 - 60% of  the arriving Sharpstar and Askar telescopes (except the smallest ones in the FMA and ACL range). This will provide us with a good understanding of the quality of that batch of optics. We would also test the focuser and check the optical tube, tube rings and dovetail bar and accessories for any visible damage or fault and take a series of test images with a full frame dSLR camera of a specially designed test chart that will show whether the telescope is fit for a full frame sensor or not, whether the image is flat in all corners and generally it will indicate the quility of the optics, i.e. resolution. Whilst we do store this information for all tested telescopes, we don't usually include a printed report, but if you ask, we might be able to send it to you). If we find that the optics are not correctly collimated then we will send them to a specialist to correct it or if the optics cannot be corrected to a good performance then those will be sent back to the manufacturer for replacement, although our experience with Sharpstar and Asker telescopes is quite good, we rarely had to do that. We believe that there is no need to offer complicated optical test reports that would assume a degree in optical sciences from the user to fully understand them.  \u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eSharpStar 140PH telescope features:\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e• 140MM f\/6.5 three-element full separation (air spaced) optical design\u003cbr\u003e• D\u003c\/span\u003eual ED ultra-low dispersion glass\u003cbr\u003e\u003cspan\u003e• Multi-layer coating\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• 4\" dual-speed rack and pinion focuser, 10:1 fine focus\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• 2\" and 1.25\" universal interfaces\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Angle adjuster for 360 degree rotation\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Dovetail bar with tube rings\u003cbr\u003e• Comes with a finderscope shoe\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Hard case included\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/sharpstar-140ph-140mm-f-6.5-dual-ed-triplet-apo-apochromatic-refractor-telescope-3.webp\"\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/sharpstar-140ph-140mm-f-6.5-dual-ed-triplet-apo-apochromatic-refractor-telescope-3.webp\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAbove image: with fully opened lens shade.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/sharpstar-140ph-140mm-f-6.5-dual-ed-triplet-apo-apochromatic-refractor-telescope-4.webp\"\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/sharpstar-140ph-140mm-f-6.5-dual-ed-triplet-apo-apochromatic-refractor-telescope-4.webp\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAbove image: with retracted lens shade.\u003c\/em\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan\u003eProduct parameters:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eModel: Ruixing  \/  SharpStar 140PH\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eObjective type: 3-piece fully separated APO\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eEffective aperture: 140mm\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eFocal length: 910mm\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eFocus ratio: f\/6.5\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eFully illuminated image circle: 44mm\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eResolution: 0.83 arc seconds\u003cbr\u003eVisual limit: 12.5 magnitude\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eAccessories included: a pair of tube rings and dovetail bar\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eMain tube outer diameter: 148mm (tube ring size)\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eNet weight: 10.1kg (excluding tube rings and dovetail plate)\u003cbr\u003eGross weight: 11.7kg (inc. tube rings, dovetail bar and handle)\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eLenght: 876mm (with extended lens shade) 739mm (with closed down lens shade)\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/sharpstar-140ph-140mm-f-6.5-dual-ed-triplet-apo-apochromatic-refractor-telescope-5.webp\"\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/sharpstar-140ph-140mm-f-6.5-dual-ed-triplet-apo-apochromatic-refractor-telescope-5.webp\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/sharpstar-140ph-140mm-f-6.5-dual-ed-triplet-apo-apochromatic-refractor-telescope-8.webp\"\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/sharpstar-140ph-140mm-f-6.5-dual-ed-triplet-apo-apochromatic-refractor-telescope-8.webp\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHS-86SQ-sharpstar-86sq-quadruplet-apochromatic-refractor-telescope-5.webp\"\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHS-86SQ-sharpstar-86sq-quadruplet-apochromatic-refractor-telescope-5.webp\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Sharpstar","offers":[{"title":"Default Title","offer_id":42440214544561,"sku":"SHS-140PH","price":4290.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sharpstar-140ph-140mm-f65-dual-ed-triplet-apo-937497.webp?v=1718364985"},{"product_id":"sharpstar-13028hnt-130mm-super-fast-f-2-8-hyperboloid-newtonian-reflector-telescope-red","title":"SharpStar 13028HNT 130mm Super-Fast f\/2.8 Hyperboloid Newtonian Reflector Telescope - RED","description":"\u003ch1\u003eSharpStar 13028HNT 130mm Super-Fast f\/2.8 Hyperboloid Newtonian Reflector Telescope with Carbon Fibre Tube\u003cbr\u003e\n\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eSharpstar took the initiative in launching the very first 150mm hyperbolic Newtonian reflective telescope with an extremely-fast focal ratio of f\/2.8 just a few years ago. We are referring to the very popular 15028HNT that has garnered a quite large following since its advent. Not indulging in this great achievement, Sharpstar keeps on with their creativity and dynamism, and now introducing the new 13028HNT to their customers, which has a same focal ratio but a slightly smaller aperture.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe 13028HNT, with a hyperbolic primary mirror, produces round and sharp stars within the full-frame format and supports a 44mm imaging circle. Compared with the more widely used focal  ratio of f\/4, the 13028HNT can attain the same image brightness with almost half of the exposure time. Additionally, due to its compact and concise design of the telescope tube, it will certainly create huge interest on the market. Users who need a compact, but extremely fast travel telescope would benefit immencely.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e365ASTRONOMY TESTING PROCEDURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe would usually test about 30 - 60% of  the arriving Sharpstar and Askar telescopes (except the smallest ones in the FMA and ACL range). This will provide us with a good understanding of the quality of that batch of optics. We would also test the focuser and check the optical tube, tube rings and dovetail bar and accessories for any visible damage or fault and take a series of test images with a full frame dSLR camera of a specially designed test chart that will show whether the telescope is fit for a full frame sensor or not, whether the image is flat in all corners and generally it will indicate the quility of the optics, i.e. resolution. Whilst we do store this information for all tested telescopes, we don't usually include a printed report, but if you ask, we might be able to send it to you). If we find that the optics are not correctly collimated then we will send them to a specialist to correct it or if the optics cannot be corrected to a good performance then those will be sent back to the manufacturer for replacement, although our experience with Sharpstar and Asker telescopes is quite good, we rarely had to do that. We believe that there is no need to offer complicated optical test reports that would assume a degree in optical sciences from the user to fully understand them.  \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/sharpstar-13028hnt-130mm-super-fast-f-2.8-hyperboloid-newtonian-reflector-telescope-red-3.webp\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe primary mirror is made of a Pyrex-alike glass PZ33. The thermal expansion coefficient is smaller than that of ordinary glass. The dielectric multilayer coating makes the primary mirror obtain a highly reflective surface of up to 97%. The minor axis of the secondary mirror is 65mm, enabling sufficient illumination for full-frame imaging. It's worth mentioning that the coma corrector is a two-part refractive-lens set, one of which is an ED glass, aiming to simplify the optical system while enhancing the aberration correction level.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe telescope tube is totally made of high-end carbon fiber material to achieve a lightweight design whilst creating an artistically beautiful instrument. All the component parts are from CNC constructed metals. The pair of tube rings feature pierced design. Although it increased the production cost, but it will certainly offer an extraordinary customer experience because of its lightweight and detail-oriented design concept.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\n\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/sharpstar-13028hnt-130mm-super-fast-f-2.8-hyperboloid-newtonian-reflector-telescope-red-4.webp\"\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003ch2\u003e\n\u003cspan\u003eThe focuser is a 2.5\" rack-and-pinion device. It is equipped with coarse as well as fine adjustment hand knobs to further improve the focusing precision. The focuser is tapped with M63 thread which can be switched into a more general M48×0.75 thread with a proper adapter ring (included). Thus the users may have a wider range of options in connecting other astronomy accessories to the focuser. The back-focus is standard 55mm(starting from the base of the mounting thread on the adapter ring’s housing), which is user-friendly for newcomers.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eA versatile handle and a standard Vixen-style dovetail plate are also included in the 13028HNT package, which may be of convenience for users to attach other potential accessories and to place the telescope on various equatorial mounts.\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003ch2\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/h2\u003e\n\u003ch2\u003e\u003cspan\u003eAlthough the telescope doesn't come with an instruction manual, one of our friends has written a nice tutorial that is available via his website.\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch2\u003e\u003cspan\u003eClick here for  \u003ca href=\"https:\/\/www.stastrophotography.com\/a-step-by-step-guide-to-collimation\/\" target=\"_blank\"\u003e\u003cb\u003eA STEP BY STEP GUIDE TO COLLIMATION\u003c\/b\u003e by Simon Todd.\u003c\/a\u003e  Link shared with his permission.\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch2\u003e\n\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/sharpstar-13028hnt-130mm-super-fast-f-2.8-hyperboloid-newtonian-reflector-telescope-red-5.webp\"\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003ch2\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/h2\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical parameters:\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch2\u003e\u003cspan\u003eAperture：130mm\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eFocal length of primary mirror：364mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFocal ratio of primary mirror：f\/2.8\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePrimary mirror type：Hyperbolic reflective mirror\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePrimary mirror material：PZ33（similar to Pyrex glass）\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eCorrector：two-element air-spaced refractive lenses（including one ED glass）\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eMinor axis of secondary mirror：65mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eImage circle：44mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eField of view：6.9 degree\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eMain tube material：High-end carbon fiber\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eMain tube outer diameter：174mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eMain tube length：394mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eNet weight：3.2kg\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eGross weight：4.3kg（including protective cap, tube rings, handle and Vixen-style dovetail plate）\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eResolution：0.89 arc second\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFocuser：2.5\" with fine-adjustment\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eLimiting visual magnitude：12.3\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBack-focus：55mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBOX DIMENSIONS\/WEIGHT: 38 x 42 x 64 cm, 11.5kg\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e*Please note, eyepiece is not included.\u003c\/em\u003e\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e \u003c\/p\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e \u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/sharpstar-13028hnt-130mm-super-fast-f-2.8-hyperboloid-newtonian-reflector-telescope-red-6.webp\" height=\"771\" width=\"1024\"\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/1c-sharpstar-15028hnt-150mm-super-fast-f-2.8-hyperboloid-newtonian-reflector-telescope.webp\"\u003e \u003c\/a\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/sharpstar-13028hnt-130mm-super-fast-f-2.8-hyperboloid-newtonian-reflector-telescope-red-7.webp\" height=\"769\" width=\"1024\"\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/960px-sharpstar-15028hnt-150mm-super-fast-f-2.8-hyperboloid-newtonian-reflector-telescope-case.webp\"\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/960px-sharpstar-15028hnt-150mm-super-fast-f-2.8-hyperboloid-newtonian-reflector-telescope-case.webp\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cem\u003eThe SharpStar 13028HNT comes in a very sturdy carrying case.\u003c\/em\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003ch3\u003eSAMPLE IMAGES\u003c\/h3\u003e\n\u003cp\u003eClick here to see the original image:\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.sharpstar-optics.com\/Upload\/161882073456.jpg\"\u003eOrion-Horsehead-Flame Image by Sharpstar 13028HNT\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eBelow image has been heavily reduced in size: appr. 1\/3 of the original size.\u003c\/p\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e \u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/sharpstar-13028hnt-130mm-super-fast-f-2.8-hyperboloid-newtonian-reflector-telescope-red-8-orion-horsehead-flame-1100px.webp\" height=\"736\" width=\"1100\"\u003e\n\u003c\/div\u003e","brand":"Sharpstar","offers":[{"title":"Default Title","offer_id":42440216871089,"sku":"SHS-13028HNT","price":1769.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sharpstar-13028hnt-130mm-super-fast-f28-hyperboloid-newtonian-reflector-telescope-red-637659.webp?v=1718364953"},{"product_id":"sharpstar-sca260-v2-aspherical-cassegrain-telescope-260mm-f-5","title":"SharpStar SCA260 V2 Aspherical Cassegrain Telescope 260mm f\/5","description":"\u003ch2 data-mce-fragment=\"1\"\u003eSharpStar SCA260 Aspherical Cassegrain Telescope 260mm - Fast f\/5 Optics\u003c\/h2\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003eThis is the version 2 that comes with some improvements (i.e. better focuser).\u003c\/h2\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003eThe serious amateur's large astro photo instrument for deepsky, at the edge of portability, this fast Cassegrain is recommended mainly for astro photography!\u003c\/h2\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFOR FULL FRAME IMAGING!\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eThis might be a good alternative to Schmidth-Cassegrain telescopes as it sits nicely somewhere between a f\/10 SCT (like a Celkestron 11\" Edge HD) and a 11\" RASA, but for a very similar cost to an 11\" Edge HD you got a much faster instrument at f\/5. Additional bonuses are the cooling fans and the heavy duty rack and pinion focuser, not to mention the so important carbon fiber tube...\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSharpStar SCA260 telescope features:\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• 260MM f\/5 Aspherical Cassegrain optical design with triplet field flattener\u003cbr data-mce-fragment=\"1\"\u003e• Primary mirror material: PZ33 (sma as pyrex glass)\u003cbr data-mce-fragment=\"1\"\u003e• Secondary mirror: spherical\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• Image circle: 80mm\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• Tube material: carbon fiber\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• Outer diameter of tube: 280.5mm\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eTube length: 712mm\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eTube weight: 15kg\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eResolution: 0.46\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eFocuser: 3.2 inch\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eVisual limiting magnitude: 13.8\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eBack focus: 75mm (calculated from the end of M48 thread)\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe SharpStar SCA 260 is a beautifully designed unique optical intrument from Sharpstar!\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eSharpstar-optics is excited to launch their newest telescope, an Aspherical Cassegrain OTA SCA260 with short focal ratio. The primary mirror is aspherical with a more complicated grinding task that is reflected in the price. Testing requirements are also more complex than traditional primary mirrors. Its carbon fiber tube is lightweight, durable and nice looking, and the use Pyrex-like materials provides a better controlled quality than traditional materials.\u003cbr data-mce-fragment=\"1\"\u003eThe primary and secondary mirrors are all made with enhanced aluminum coating, and the reflectivity is guaranteed to be above 95%. The secondary mirror has a new lever adjustment function that can be moved in a horizontal position. The 3-inch dedicated focuser ensures smooth operation without slipping when taking photos with heavy accessories.\u003cbr data-mce-fragment=\"1\"\u003eAll CNC aluminum parts and novel hollow handles can be connected to different accessories. The appearance and mechanical quality are of high standards. Its design is to meet the needs of today’s demanding astronomer.\u003cbr data-mce-fragment=\"1\"\u003eThe optical path includes a triplet 3\" field flattener, thus ensuring full-frame photography and vignetting control. The two M54×0.75 threads and M48×0.75 threads at the rear of the focuser can meet different needs and are convenient to connect to most commercially available imaging-terminals and help to achieve perfect focus.\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/sharpstar-sca260-aspherical-cassegrain-telescope-260mm-f-5-ca.webp\" data-mce-fragment=\"1\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/sharpstar-sca260-aspherical-cassegrain-telescope-260mm-f-5-ca.webp\" data-mce-fragment=\"1\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/sharpstar-sca260-aspherical-cassegrain-telescope-260mm-f-5-d.webp\" data-mce-fragment=\"1\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/sharpstar-sca260-aspherical-cassegrain-telescope-260mm-f-5-d.webp\" data-mce-fragment=\"1\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eUser contributions:\u003c\/h3\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eMELOTTE 15 – “THE HEART OF THE HEART NEBULA”\u003c\/strong\u003e\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSubject:                              Melotte 15 – “The Heart of the Heart Nebula”\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eImaging OTA:                     Sharpstar SCA260 – 1300mm, f\/5.0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eImaging Camera:               ZWO ASI2600MM-PRO\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFilters:                      \u003cwbr data-mce-fragment=\"1\"\u003e           Antlia 2” Narrowband: Ha (3nm); Sii (3.5nm); Oiii (3.5nm)\u003c\/wbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFilter Wheel:                      ZWO 7 x 2”\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eGuide System:                    ZWO OAG-L with ZWO ASI174MM camera\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eMount:                        \u003cwbr data-mce-fragment=\"1\"\u003e        Skywatcher EQ6-R\u003c\/wbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eCapture Details:                 Ha: 30 x 300s; Sii: 26 x 300s; Oiii: 26 x 300s\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eIntegration time: 6h40’\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eBortle 4 over 4 nights\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003eCourtesy of Alistair Scobie\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e(Please note, below is a 900px wide version, but if you click on it, you will see a 1600px wide version. The original was even larger, but we had to reduce it to 1600pixels width as that's the max our shopping cart system allows...)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/SCA260\/Melotte_15_B-Alistair-Scobie-SCA260-ASI2600MM-PRO.webp\" data-mce-fragment=\"1\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/SCA260\/Melotte_15_B-Alistair-Scobie-SCA260-ASI2600MM-PRO.webp\" data-mce-fragment=\"1\"\u003e\u003c\/a\u003e\u003c\/div\u003e","brand":"Sharpstar","offers":[{"title":"Default Title","offer_id":42440219787441,"sku":"SHS-SCA260-V2","price":4390.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sharpstar-sca260-v2-aspherical-cassegrain-telescope-260mm-f5-955242.webp?v=1718480280"},{"product_id":"askar-130phq-130mm-f-7-7-ed-apo-quadruplet-telescope-1","title":"Askar 130PHQ 130mm f\/7.7 ED APO Quadruplet Telescope – Dark Clear Skies","description":"\u003ch1\u003eASKAR 130PHQ 130mm f\/7.7 ED APO Quadruplet Apochromatic Refractor Telescope.\u003c\/h1\u003e\n\u003cp\u003eThe Askar 130PHQ offers a long-focal-ratio, flat field astrograph with a focal length of 1000mm with a 60mm imaging circle newly launched after the Askar 107PHQ. Instead of buying extra flatteners, calculating the backfocus of flattener or making tedious connection to match the distance, astrophotographers can simply equip it with any possible imaging devices, make the target stay at the focus, and then the whole optical system is perfect for imaging.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/130PHQ\/askar-130phq-130mm-f-7.7-ed-apo-quadruplet-apochromatic-refractor-telescope-1.webp\"\u003e\u003c\/p\u003e\n\u003ch1\u003e\u003cbr\u003e\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eASKAR 130PHQ ED APO quadruplet telescope features:\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e• 130MM f\/7.7 quadruplet air-spaced APO design\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Includes two ED lens elements\u003cbr\u003e• Built-in field flattener for up to medium format photography with 60mm image circle\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Wide range of imaging connections: M68, M54, M48\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• New 3.4\" dual-speed rack and pinion focuser, 10:1 fine focus for up to 8kg payload\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e•  2\" and 1.25\" universal interfaces\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Angle adjuster for 360 degree rotation\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Universal (Vixen-style) dovetail bar with tube rings\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Comes with a finderscope shoe\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lp\/product\/SHARPSTAR\/130PHQ\/askar-130phq-130mm-f-7.7-ed-apo-quadruplet-apochromatic-refractor-telescope-2.webp\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe 130PHQ has a larger size than 107PHQ, with an aperture 23mm larger than 107PHQ. 130PHQ has a focal ratio of f\/7.7 which is longer than 107PHQ’ s f\/7, and a focal length of 1000mm. The quadruplet lens with two ED glasses offers excellent control of chromatic and other aberrations. With its self-flattening design, 130PHQ offers strong advantages in astronomical shooting. It supports a medium frame 60mm image circle, has a fine spot diagram with tiny distortion of the peripheral stars, and its central RMS radius is less than 2 microns.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/130PHQ\/askar-130phq-130mm-f-7.7-ed-apo-quadruplet-apochromatic-refractor-telescope-3.webp\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/130PHQ\/askar-130phq-130mm-f-7.7-ed-apo-quadruplet-apochromatic-refractor-telescope-4.webp\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe 130PHQ comes with a telescopic lens hood, a high quality CNC machined and painted tube and attractive decorative parts. The 3.4\" rigid focuser comes with M68, M54, and M52 adapters and a finder base. When used with the 3\" 0.7 x flat field reducer, the telescope can reach a focal ratio of f\/5.4 and a focal length of 700mm, effectively reducing exposure time. The multifunctional handle comes with a central slot for attaching an M6 screw with an M6 screw hole. Standard Losmandy dovetail plate, together with sturdy double tube ring, is perfectly suited for viewing and shooting.\u003cbr\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/130PHQ\/askar-130phq-130mm-f-7.7-ed-apo-quadruplet-apochromatic-refractor-telescope-5.webp\"\u003e\u003c\/p\u003e\n\u003cp\u003eSPECIFICATIONS\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAperture size：130mm\u003c\/li\u003e\n\u003cli\u003eFocal length：1000mm\u003c\/li\u003e\n\u003cli\u003eFocal ratio：f\/7.7\u003c\/li\u003e\n\u003cli\u003eObjective lens：Quadruplet air-spaced APO (including two ED glass)\u003c\/li\u003e\n\u003cli\u003eImage circle：60mm\u003c\/li\u003e\n\u003cli\u003eMaximum accessory connection (with the focuser fully retreated)：\n\u003cul\u003e\n\u003cli\u003e1. Imaging mode:\u003cbr\u003e116mm（from the base of M48×0.75 male thread）\u003cbr\u003e136mm（from the base of M54×0.75 male thread）\u003cbr\u003e156mm（from the base of M68×1male thread）\u003cbr\u003e186mm（from the base of M76×1 male thread）\u003c\/li\u003e\n\u003cli\u003e2. Observing mode:\u003cbr\u003e148.5mm（from the end of 2\" eyepiece holder）\u003cbr\u003eTotal length：\u003cbr\u003e842.5mm（including 1.25\" eyepiece holder as dew shield contracted）\u003cbr\u003e889.5mm（including 1.25\" eyepiece holder as dew shield fully stretched）\u003cbr\u003e1011.5mm（including the 4-piece adapter as dew shield contracted）\u003cbr\u003e1061.5mm（including the 4-piece adapter as dew shield fully stretched）\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eNet weight：10.2kg\u003c\/li\u003e\n\u003cli\u003eGross weight：12.5kg\u003c\/li\u003e\n\u003cli\u003eRear-end thread type：\u003cbr\u003eM86×1-M68×1    \u003cbr\u003eM68×1-M54×0.75    \u003cbr\u003eM54×0.75-M54×0.75\u003cbr\u003eM54×0.75-M48×0.75（M48×0.75 filter thread inside）\u003c\/li\u003e\n\u003cli\u003eStandard package items：an 130PHQ OTA，a pair of tube rings, a handle, an Askar  losmandy 300mm dovetail plate, a set of 4-piece photographic adapters, a manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/130PHQ\/askar-130phq-130mm-f-7.7-ed-apo-quadruplet-apochromatic-refractor-telescope-6.webp\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/130PHQ\/askar-130phq-130mm-f-7.7-ed-apo-quadruplet-apochromatic-refractor-telescope-7.webp\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/130PHQ\/askar-130phq-130mm-f-7.7-ed-apo-quadruplet-apochromatic-refractor-telescope-8.webp\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/130PHQ\/askar-130phq-130mm-f-7.7-ed-apo-quadruplet-apochromatic-refractor-telescope-9.webp\"\u003e\u003c\/p\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":42440253407409,"sku":"ASKAR-130PHQ","price":3990.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-130phq-130mm-f77-ed-apo-quadruplet-telescope-333168.webp?v=1782294888"},{"product_id":"askar-fma230-f230-f-5-5","title":"Askar FMA230 f\/5.5","description":"\u003ch2 data-mce-fragment=\"1\"\u003eASKAR FMA F230 f\/5.5 Astrograph Camera Lens - Triplet APO Refractor Telescope with f\/4.6 reducer\u003c\/h2\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eThe ASKAR FMA230 objective lens features a triplet air-spaced APO design, includes two pieces of ED (extra-low dispersion) glass, providing excellent correction of chromatic aberration, which lays the foundation for high quality astrophotography and observation.\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-fma230-f230-f-5.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.6-reducer-3.webp\" target=\"_self\"\u003e\u003cimg data-mce-fragment=\"1\" title=\"ASKAR FMA230 F230 f\/5.5 Astrograph Camera Lens - Triplet APO Refractor Telescope with f\/4.6 reducer\" alt=\"ASKAR FMA230 F230 f\/5.5 Astrograph Camera Lens - Triplet APO Refractor Telescope with f\/4.6 reducer\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-fma230-f230-f-5.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.6-reducer-3.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe FMA230 has a compound lens system. The front objective lens comprises three lenses and the posterior reducer is composed of four lenses and thus it’s sometimes dubbed as a “three at the front and four at the rear” system. The aperture size of the objective lens is 50mm and the original focal length is 275mm thus we’ve got a relatively fast focal ratio of f\/5.5. The objective lens contains two ED glasses which are adapted to cure chromatic aberrations.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-fma230-f230-f-5.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.6-reducer-6.webp\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eOne can barely find an equal counterpart in the market as designing a three-element apochromatic objective lens in astrograph with such size demands more on craftsmanship and processing technique. We made it because we consistently cling to the belief that we have to deliver a better imaging result to our customers. The FMA230 can solely function as a lens to observe the ground scenery or stars in the sky, or as a telescope for direct-focus photography. You should just fine-tune the helical focuser to perfectly focus without adding extra optical devices.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe four-element reducer is a 0.84×optical device which can change the the FMA230 into a 50mm-aperture astrograph with a focal length of 230mm and a focal ratio of f\/4.6. The reducer is designed specially for sophisticated astrophotography, which plays an essential role in improving the image quality generally across the whole field of view. And it pays special attention to the stars at the edge of the image. The pictures will be greatly enhanced and detailed under the help of this dedicated reducer even the imaging equipment you use is a rather professional full-frame ordinary or astronomy camera.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eFMA230 is equipped with useful standard accessories.\u003cbr data-mce-fragment=\"1\"\u003e \u003cbr data-mce-fragment=\"1\"\u003eThe pair of tube rings are artistically pierced. Its stalks are lengthened which means that the tube rings provide more room for the devices, like a camera, that are attached to the FMA230, so they won’t collide with the dovetail plate under the astrograph. \u003c\/div\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-fma230-f230-f-5.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.6-reducer-schematic.webp\" target=\"_self\"\u003e\u003cimg data-mce-fragment=\"1\" title=\"ASKAR FMA230 F230 f\/5.5 Astrograph Camera Lens - Triplet APO Refractor Telescope with f\/4.6 reducer\" alt=\"ASKAR FMA230 F230 f\/5.5 Astrograph Camera Lens - Triplet APO Refractor Telescope with f\/4.6 reducer\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-fma230-f230-f-5.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.6-reducer-schematic.webp\" height=\"968\" width=\"1600\"\u003e\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eClick on the above image for a larger size.\u003c\/em\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cem data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eThe FMA230 comes with a Vixen-style dovetail plate. Screw the tube-ring-wrapped astrograph onto the dovetail plate and then directly slide the assembly into the slot on top of an equatorial mount. The slot at the center of the dovetail plate is carved for the attachment to a tripod. It’s quite convenient and helpful especially when you carry out some ground imaging or observation.\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eIn order to solve the awkwardness of carrying around your astrograph when you engage in field astrophotography, the FMA230 is designed with a pretty-looking and utility handle. The detachable handle is installed on the top side of the tube ring. The handle is not just literally a handle, the dovetail slot carved out of the handle can also be a base for the attachment of finders, guiders or ASIAIRs that have a corresponding dovetail foot. So you have more room to integrate as many accessories as possible. Besides, the handle is carved with 45°Arca-swiss style slots at the sides, so an upside-down handle can be directly slid into a corresponding Arca-swiss clamp on a camera tripod.\u003cbr data-mce-fragment=\"1\"\u003e \u003cbr data-mce-fragment=\"1\"\u003eThe lightweight and compact FMA230 is a new sibling from the Askar FMA- family, it will definitely bring your observing and imaging experience to a whole new level! \u003c\/div\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSPECIFICATIONS\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAperture: 50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFocal Length: 275mm or 230mm (with reducer) \u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFocal Ratio: f\/5.5 or f\/4.6 (with reducer)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eObjective type: Triplet Dual ED air -spaced APO (objective lens only) or Sex\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003etuplet APO Refractor (with reducer)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eOverall length: 248mm (when imaging with the reducer) or 221mm (when observing without the diagonal)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eWeight: 1045g\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eBack-end adapter:\u003c\/span\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eM48x0.75 male thread (photographic mode),\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e2\" eyepiece holder barrel (observation mode)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eWHAT'S IN THE BOX\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFMA230 body\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ea pair of multi-directional tube rings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eutility-handle (that also serves as a multi-purpose finderscope bracket)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003etwo extension tubes\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003einstruction manual\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e2\" adapter (2\" eyepiece holder)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":42440279261361,"sku":"ASKR-FMA230","price":669.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-fma230-f230-f55-755509.webp?v=1782295034"},{"product_id":"askar-acl200-200mm-f-4-professional-sextuplet-apo-telescope-1","title":"Askar ACL200 200mm f\/4 Professional Sextuplet APO Telescope","description":"\u003ch1 data-mce-fragment=\"1\"\u003eASKAR ACL200 200mm f\/4 Professional Sextuplet APO Astro Camera Lens (ACL) Mark II\u003c\/h1\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eA WORLD FIRST! Structure and appearance of a camera lens, but with a performance of a high quality APO telescope!\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eThe current stock is the Mark II version with a different ring and a red finderscope base clamp at the top. (for the same price as the original version)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe ASKAR ACL200has been specifically designed for astrophotography, whilst it meats the requirements of landscape photography. A unique focusing solution, coarse and fine focusing rings with locking knobs provide the ultimate astro photo experience. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eA groundbraking product for full frame cameras that perfectly combines the usual features of a telescope and a telephoto camera lens.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eWhen using it for deep-sky imaging, it will produce clear and sharp images with minimal amount of distortion and chromatic aberration, resulting in great astrophotos of highest quality. The built-in filter holder that accepts a 2\" filter will help to achieve your goal: use a light pollution filter (like the Optolong L-Pro) or\/and a H-alpha filter and combine them into a single image. Instead of a H-alpha filter you could also consider a dual or triple narrowband filter, like the ZWO 2\" DB filter or Optolong 2\" L-eNhance or 2\" L-eXtreme.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eAlthough not exactly lightweight, you can be assured that it is built to last and will serve you many years if handled with care.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-(acl)-mark-ii-1.webp\" alt=\"\" data-mce-src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-(acl)-mark-ii-1.webp\"\u003e\u003c\/p\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003eNEW FEATURES OF THE MARK II VERSION\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003eWe did some modification on the old ACL200, hoping to improve our customers’ experience with it, which includes a handle with standard Vixen dovetail finder slot, a new-type mounting ring and two extra thumbscrews.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eCompared with the old mounting ring, the new ring has an extruding stalk for the installation of the handle. And the new-added handle with a dovetail finder slot will serve for many purposes of attachment like finders or ASIAIR controllers. Further more, the handle can also go with a dual-connection of a controller and a finder as the length of which accommodates both accessories\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-(acl)-mark-ii.webp\" alt=\"\" data-mce-src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-(acl)-mark-ii.webp\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-f.webp\" data-mce-href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-f.webp\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-f.webp\" alt=\"\" data-mce-src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-f.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-g.webp\" data-mce-href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-g.webp\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-g.webp\" alt=\"\" data-mce-src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-g.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-2.webp\" data-mce-href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-2.webp\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-2.webp\" alt=\"\" data-mce-src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-2.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-i.webp\" data-mce-href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-i.webp\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-i.webp\" alt=\"\" data-mce-src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-i.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003eFEATURES\u003c\/h2\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eProfessional telescope APO lens for astrophotography\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eHigh quality optical design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eEasy to use as a camera lens\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eDual speed helical focusing for high precision focusing (fine focus provides micro adjustment - a 1mm movement in one rotation)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eLockable 360-degree rotation for perfect framing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e2\" filter holder built-in (filter needs to be screwed in)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eArca-Swiss style connection plate with 3\/8\" and 1\/4\" female threads for mounting to a tripod\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eManual aperture control between f\/4 and f\/22 for landscape photography\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eShortest focusing distance: 3m (i.e. for imaging birds, etc.)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-l.webp\" data-mce-href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-l.webp\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-l.webp\" alt=\"\" data-mce-src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-l.webp\"\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-20.webp\" data-mce-src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-20.webp\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003eSPECIFICATIONS\u003c\/h2\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFocal Length: 200mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAperture: 50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eObjective type: Sextuplet APO (six lenses in three groups)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFocal Ratio: f\/4\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eMin aperture: f\/22\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAperture blades: 10 pcs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFocus mode: manual\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eType of focusing: coarse and micro motion\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eMicro Motion distance: 1mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eClosest focusing distance: appr. 3m\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFront filter diameter: 82mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eOverall length: 195mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eDiameter: 100mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eWeight: 1800g\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eBack-end connection:\u003c\/span\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eM48x0.75 male thread (as per supplier's specification, but we've heard from a customer that it is actually M48... we'll check it out shortly)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/AAA-askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-k.webp\" data-mce-href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/AAA-askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-k.webp\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/AAA-askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-k.webp\" alt=\"\" data-mce-src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/AAA-askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-k.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/BBB-askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-j.webp\" data-mce-href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/BBB-askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-j.webp\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/BBB-askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-j.webp\" alt=\"\" data-mce-src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/BBB-askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-j.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/CCC-askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-k.webp\" data-mce-href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/CCC-askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-k.webp\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/CCC-askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-k.webp\" alt=\"\" data-mce-src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/CCC-askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-k.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003eWHAT'S IN THE BOX\u003c\/h2\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eACL200 body\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eLens shade\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eArce-Swiss style dovetail bar (also compatible with Vixen-style clamps)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eInstruction manual\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e2\" filter holder (assembled with the lens)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eQuality control checklist\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSoft padded case\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003eSAMPLE IMAGES\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003e(Click on the images for large size)\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-(acl)-mark-ii-Orion.webp\" alt=\"\" data-mce-src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/SHARPSTAR\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-(acl)-mark-ii-Orion.webp\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/CCC-askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-cC.webp\" data-mce-href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/CCC-askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-cC.webp\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/CCC-askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-cC.webp\" alt=\"\" data-mce-src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/CCC-askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-cC.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-d.webp\" data-mce-href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-d.webp\"\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-d.webp\" alt=\"\" data-mce-src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-acl200-200mm-f-4-professional-sextuplet-apo-astro-camera-lens-acl-d.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":42440285683889,"sku":"ASKR-ACL200MkII","price":759.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-acl200-200mm-f4-professional-sextuplet-apo-205745.webp?v=1782294961"},{"product_id":"askar-fma-f180-f-4-5","title":"Askar FMA F180 f\/4.5","description":"\u003ch1\u003eASKAR FMA F180 f\/4.5 Astrograph Camera Lens - Triplet APO Refractor Telescope with f\/4.5 reducer\/flattener.\u003c\/h1\u003e\n\u003ch2\u003eThe ASKAR FMA180 objective lens features a triplet air-spaced APO design, includes two pieces of ED (extra-low dispersion) glass, providing excellent correction of chromatic aberration, which lays the foundation for high quality astrophotography and observation.\u003c\/h2\u003e\n\u003ch2\u003e \u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-1.webp\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-1.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eThe ASKAR FMA180 reducer\/flattener features a Triplet air-spaced design, combined use with the also triplet objective lens provides clear and sharp image, specifically optimized for astrophotography, so you don't have to worry about chromatic aberration. Using the f\/4.5 reducer makes it capable of capturing clear astrophotos in considerably less time.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-2.webp\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-2.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eWhen using the special F4.5 full frame reducer\/flattener, the 40mm aperture, 220mm (f\/4.5) focal length ASKAR FMA180 becomes a professional APO refractor with 180mm focal length and it will present excellent performance for both visual observation and astrophotography, .\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eFor traditional astrophotography, it is difficult to achieve a focal length of less than 200MM with commercially available telescopes. The only choice in this range is the ordinary camera lens. However,  camera lenses use a large number of lenses (10-15) and therefore are not optimized for astrophotography, so the result is not satisfactory. \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-10.webp\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-10.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eThe FMA180 is our latest development and if you wanted to capture deep-sky objects, it will offer you superior optical performance in comparison to telephoto prime lenses.\u003c\/p\u003e\n\u003cp\u003eIn addition to photography and observation, the FMA180 can also serve you as a high-performance finder\/guider of your choice. The overall tube length is 145mm, the small size of FMA180 tips the scales at a mere 395g.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-8.webp\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-8.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-9.webp\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-9.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eTherefore, the standard package includes a pair of tube rings and a finder bracket, which can be easily attached to the finder base on the market. In addition, the finder bracket can be divided into two parts, among which the dovetail plate can be used alone, and it can be connected to the tripod with standard camera thread and other head. This SWISS standard dovetail can be connected to the corresponding plate slot more conveniently, and it can also attach to the VIXEN narrow equatorial adapter. Hence you can get rich connectivity for both photographic purposes and observation.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-3.webp\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-3.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eDue to its small size it can be directly attached to a camera like a normal lens, and easy to take anywhere.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-4.webp\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-4.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eClick on the above image for a larger size.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eExamples of use for the FMA180:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-5a.webp\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-5a.webp\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003cem\u003eClick on the above image for a larger size.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch4\u003ePHOTOGRAPHIC MODE:\u003cbr\u003e \u003c\/h4\u003e\n\u003cp\u003e1) Main tube + focuser + reducer\/flattener + reducer connection extension tube: 180mm F4.5 sextuplet APO flat field correction astrograph lens (recommended photographic mode, product assembled)\u003cbr\u003e2) Main tube + focuser + extension tube 1 + extension tube 2＋reducer connection extension tube : 220mm F5.5 triplet APO lens\u003c\/p\u003e\n\u003ch4\u003e \u003cbr\u003eOBSERVATION MODE:\u003cbr\u003e \u003c\/h4\u003e\n\u003cp\u003e1) Main tube + focuser + extension tube 1 + 1.25\" adapter: It can be combined with 1.25\" star diagonal and eyepiece for standard observation mode or finderscope mode.\u003cbr\u003e2) Main tube + focuser + extension tube 1 + extension tube 2: It can be combined with 1.25\" eyepiece for visual observation mode or finderscope mode.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-6.webp\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-6.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan\u003eSPECIFICATIONS\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eApertaure: 40mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFocal Length: 220mm or 180mm (with reducer) \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFocal Ratio: f\/5.5 or f\/4.5 (with reducer)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eObjective type: Triplet Dual ED air -spaced APO (objective lens only) or Flatfield Sex\u003c\/span\u003e\u003cspan\u003etuplet APO Refractor (with reducer\/flattener)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOverall length: 145mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeight: 395g\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eBack-end adapter:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eM42x0.75 male thread (photographic mode),\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1.25\" eyepiece holder barrel (observation mode)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan\u003eWHAT'S IN THE BOX\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-7.webp\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-7.webp\"\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFMA180 body (troplet APO + reducer\/flattener)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ea pair of tube rings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003efinderscope bracket\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003etwo extension tubes\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003einstruction manual\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1.25\" adapter (1.25\" eyepiece holder)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAllen key\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-11.webp\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-11.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-13.webp\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/askar-fma-f180-f-4.5-astrograph-camera-lens-triplet-apo-refractor-telescope-with-f-4.5-reducer-13.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":42440296038577,"sku":"ASKR-FMA180","price":365.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-fma-f180-f45-689395.webp?v=1782295021"},{"product_id":"askar-65phq-65mm-f-6-4-ed-apo-quintuplet-apochromatic-telescope","title":"Askar PHQ65 APO Refractor (65 mm Quintuplet f\/6.4) – Dark Clear Skies","description":"\u003c!-- Askar PHQ65 – Product Description --\u003e\n\u003cdiv class=\"dcs-product space-y-6\"\u003e\n\n  \u003ch2\u003eAskar PHQ65 – Quintuplet Flat-Field APO Refractor\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The \u003cstrong\u003eAskar PHQ65\u003c\/strong\u003e is a premium \u003cstrong\u003equintuplet APO refractor\u003c\/strong\u003e\n    engineered for astrophotography. Its \u003cstrong\u003eflat-field optical design\u003c\/strong\u003e means no\n    separate flattener is required—making setup simple while delivering\n    \u003cem\u003epinpoint stars across APS-C and full-frame sensors\u003c\/em\u003e.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eKey features\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAperture:\u003c\/strong\u003e 65 mm with a high-quality APO quintuplet design.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFlat field:\u003c\/strong\u003e Built-in correction—no extra flattener needed.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFocal length:\u003c\/strong\u003e 416 mm at \u003cstrong\u003ef\/6.4\u003c\/strong\u003e, perfect for nebulae and clusters.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eED elements:\u003c\/strong\u003e Suppresses chromatic aberration for sharp, colour-pure images.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePortable:\u003c\/strong\u003e Compact OTA with retractable dew shield for travel rigs.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eImaging ready:\u003c\/strong\u003e Sturdy rack-and-pinion focuser with dual-speed control.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eTechnical summary\u003c\/h3\u003e\n  \u003ctable role=\"table\" style=\"width:100%;border-collapse:collapse\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px;border-bottom:1px solid #e5e7eb;\"\u003eOptical design\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #e5e7eb;\"\u003eQuintuplet APO with flat field\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px;border-bottom:1px solid #e5e7eb;\"\u003eAperture\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #e5e7eb;\"\u003e65 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px;border-bottom:1px solid #e5e7eb;\"\u003eFocal length\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #e5e7eb;\"\u003e416 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px;border-bottom:1px solid #e5e7eb;\"\u003eFocal ratio\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #e5e7eb;\"\u003ef\/6.4\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px;border-bottom:1px solid #e5e7eb;\"\u003eImage circle\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #e5e7eb;\"\u003eFull-frame compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px;border-bottom:1px solid #e5e7eb;\"\u003eFocuser\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #e5e7eb;\"\u003e2.5″ rack-and-pinion, dual-speed\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px;border-bottom:1px solid #e5e7eb;\"\u003eWeight (OTA)\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #e5e7eb;\"\u003e~3.9 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px;border-bottom:1px solid #e5e7eb;\"\u003eIncluded\u003c\/th\u003e\n\u003ctd style=\"padding:8px;border-bottom:1px solid #e5e7eb;\"\u003eOTA, tube rings, dovetail, adapters\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eBest for\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eWide-field astrophotography with APS-C and full-frame sensors\u003c\/li\u003e\n    \u003cli\u003eTravelling astrophotographers who want a compact yet powerful APO\u003c\/li\u003e\n    \u003cli\u003eLarge nebulae, clusters, and Milky Way fields\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003c!-- FAQ Schema --\u003e\n  \u003cscript type=\"application\/ld+json\"\u003e\n  {\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"@id\": \"{{ shop.url }}{{ product.url }}#faq\",\n    \"mainEntity\": [\n      {\n        \"@type\": \"Question\",\n        \"name\": \"Does the PHQ65 need a field flattener?\",\n        \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"No. The PHQ65 has a built-in flat-field design that corrects for field curvature natively.\" }\n      },\n      {\n        \"@type\": \"Question\",\n        \"name\": \"What focal ratio does the PHQ65 operate at?\",\n        \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"It runs at f\/6.4 with a 416 mm focal length.\" }\n      },\n      {\n        \"@type\": \"Question\",\n        \"name\": \"Is it suitable for full-frame imaging?\",\n        \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Yes, the PHQ65 provides a corrected field that covers full-frame sensors.\" }\n      }\n    ]\n  }\n  \u003c\/script\u003e\n\u003c\/div\u003e\nProduct introduction\n长友气体\n长友气体\n65mm aperture\n\n长友气体\n416mm focal length\n\n长友气体\nQuadruplet air-spaced APO design\n\n长友气体\nSupporting full frame\n\n长友气体\nCentral RMS radius 2.5um\n\n长友气体\nNo need for flattener\n\n长友气体\n0.75x Reducer\n\n(optional)\n\n长友气体\nNo need to calculate the backfocus\n\n长友气体\nRetractable lens hood\n\n长友气体\n300mm dovetail plate\n\n长友气体\nmulti-functional handle\n\n长友气体\n2.5\" large rack- pinion focuser\n\n长友气体\n1:10 fine adjustment\n\n长友气体\nVarious adapter\n\n  \n65PHQ is a flatfield astrograph newly launched after 80PHQ, 107PHQ, and 130PHQ. Instead of buying extra flatteners, calculating the back focus of the flattener, or making a tedious connection to match the correct distance, astrophotographers can simply equip it with any possible imaging accessories, make the target stay at the focus, and then the whole optical system is perfect for imaging. \n\n\n65PHQ has a smaller size than other PHQ astrographs. 65PHQ has a focal ratio of f\/6.4 and a focal length of 416mm. Instead of the quadruplet structure of other PHQs, the 65PHQ is a quintuplet with two ED glasses which offers excellent control of chromatic and other aberrations. With its self-flattening design, 65PHQ offers strong advantages in the astronomical shooting. It supports the full-frame image circle and has a fine spot diagram with tiny distortions of the peripheral stars.\n\n长友气体\n65PHQ comes with a telescopic lens hood, a high-quality CNC machined and painted tube, and attractive decorative parts. The OTA weighs 2kg, and the full package with tube rings, etc. weighs 2.8kg. The 2.5” rigid focuser comes with a new-type 360° rotator with scales and a finder base. M68, M54, and M48 camera adapters are also attached, and the M48 adapter has a 2” female thread for installing filters.\n\n\nIt is also a nice choice for your visual observation. It fits diagonals as well as various eyepieces and can achieve a perfect focus. It can even be used to observe planets with a super-high magnification eyepiece. The 65PHQ contains a multifunctional handle, a 300mm dovetail plate, and sturdy double tube rings. It is small in size and light in weight, which perfectly caters to your need for viewing and shooting.\n\n长友气体\nSpecifications\n65PHQ Parameters\n\nAperture size\n\n65mm\n\nFocal length\n\n416mm\n\nFocal ratio\n\nf\/6.4\n\nObjective lens\n\nQuintuplet air-spaced APO (including two ED glasses)\n\nImage circle\n\n44mm\n\nMaximum accessory connection (with the focuser fully retreated)：\n\nImaging mode\n\n76mm（from the base of M48×0.75 male thread） \n\n105mm（from the base of M54×0.75 male thread）\n\n130mm（from the base of M68×1 male thread）\n\nObserving mode\n\n121mm（from the end of 2\" eyepiece holder）\n\nTotal length\n\n328mm（including 1.25\" eyepiece holder as dew shield contracted）\n\n388mm（including 1.25\" eyepiece holder as dew shield fully stretched） \n\n360mm（including the 3-piece adapter as dew shield contracted）\n\n420mm（including the 3-piece adapter as dew shield fully stretched）\n\nOTA Weight\n\n2kg\n\nTotal Weight (Including tube ring\u0026amp;dovetail plate）\n\n2.8kg\n\nRear-end thread type\n\nM68×1-M54×0.75\n\nM54×0.75-M54×0.75 \n\nM54×0.75-M48×0.75 (M48×0.75 filter thread inside)\n\nRear end of the 3-piece photographic adapters\n\nM48×0.75\n\nStandard package items\n\nA 65PHQ OTA, a pair of tube rings, a handle, Askar 300mm Vixen-style dovetail plate, a set of 3-piece photographic adapters, a manual\n\n \n\n \n\n长友气体\n\nVideo\n\nImages\n长友气体\n\nLogan Carpenter  | OED1 - The NilAdh Bubble   | ASKAR 65PHQ+ZWO ASI2600MM Pro\n\n长友气体\n\n酱油颜  | NGC6992  | ASKAR 65PHQ+294mc  | Colour Magic Super Duo Narrowband Filter\n\n长友气体\n\n酱油颜  | NGC7293  | ASKAR 65PHQ+294mc  | Colour Magic Super Duo Narrowband Filter\n\n长友气体\n\nZhu Li Qun  | Heart Nebula+Soul Nebula  | ASKAR 65PHQ+6200mm  | SHO total 8 hours\n\n长友气体\n\nJames Negri  | M42, The Great Orion Nebula  | ASKAR 65PHQ+ASI533mc  | Astronomik L-2 Luminance UV\/IR Block 1.25\"\n\n长友气体\n\nRumen Bogdanovski  | Lagoon and Trifid nebulae  | ASKAR 65PHQ+Player One Poseidon C Camera  | Colour Magic D1\n\n长友气体\n\nRumen Bogdanovski  | NGC 2237  | ASKAR 65PHQ+playerone poseidon c pro  | Colour Magic D1\n\n长友气体\n\nRumen Bogdanovski  | M8+M20  | ASKAR 65PHQ  | Colour Magic D1","brand":"Askar","offers":[{"title":"Default Title","offer_id":42849692254385,"sku":"ASKAR-65PHQ-GREEN","price":895.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-65phq-65mm-f64-ed-apo-quintuplet-apo-pink-763953.webp?v=1782294918"},{"product_id":"zwo-ff80-apo-quintuplet-apo-telescope","title":"ZWO FF80 APO: Quintuplet APO Telescope","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch2\u003eMain Features - ZWO FF80 APO\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e44mm image circle\u003c\/li\u003e\n\u003cli\u003eSupports full-frame cameras\u003c\/li\u003e\n\u003cli\u003eQuadruplet air-spaced APO design\u003c\/li\u003e\n\u003cli\u003eSmall and round stars with a central RMS radius of 2.5um\u003c\/li\u003e\n\u003cli\u003eVersatile adapter compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eZWO FF80 APO Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eObserving mode: 148mm\u003c\/li\u003e\n\u003cli\u003eAperture size: 80mm\u003c\/li\u003e\n\u003cli\u003eNet weight: 3.9Kg\u003c\/li\u003e\n\u003cli\u003eFocal length: 600mm\u003c\/li\u003e\n\u003cli\u003eGross weight: 4.7Kg\u003c\/li\u003e\n\u003cli\u003eFocal ratio: f\/7.5\u003c\/li\u003e\n\u003cli\u003eImage circle: 44mm\u003c\/li\u003e\n\u003cli\u003eObjective lens: Quadruplet air-spaced APO (including two ED glass)\u003c\/li\u003e\n\u003cli\u003eImaging mode: 115mm (from the base of M48x0.75 male thread), 135mm (from the base of M54x0.75 male thread), 155mm (from the base of M68x1 male thread), 168.5mm (from the base of M76x1 male thread)\u003c\/li\u003e\n\u003cli\u003eRear-end thread type: M76x1-M68x1, M68x1-M54x0.75, M54x0.75-M54x0.75, M54x0.74-M48x0.75 (M48x0.75 filter thread inside)\u003c\/li\u003e\n\u003cli\u003eTotal length: 450mm (including 1.25\" eyepiece holder as dew shield contracted), 480mm (including the 4-piece adapter as dew shield contracted), 540mm (including 1.25\" eyepiece holder as dew shield fully stretched), 570mm (including the 4-piece adapter as dew shield fully stretched)\u003c\/li\u003e\n\u003cli\u003eRear end of the 4-piece photographic adapters: M48x0.75\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eZWO FF80 APO Description:\u003c\/p\u003e\n\u003cp\u003eThe ZWO FF80 APO is a powerful refractive astrograph featuring the Hatfield optical design. With its self-flattening capability, it eliminates the need for a separate field flattener, saving you time and effort in setup. The telescope delivers exceptional imaging performance, while also being suitable for visual observation. Compact and lightweight, the OTA weighs only 3.9kg, making it highly portable. The quadruplet lens structure with two ED glass elements minimizes chromatic aberration. It supports full-frame cameras and comes with versatile adapter compatibility. Enjoy the ease and quality of the ZWO FF80 APO!\u003c\/p\u003e\n\u003cp\u003eEasy-to-use Design:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExtension-type hood\u003c\/li\u003e\n\u003cli\u003eDetachable tube ring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch1\u003e\u003cbr\u003e\u003c\/h1\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cimg class=\"aligncenter size-full wp-image-57011\" src=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO%E8%AF%A6%E6%83%85-EN_01-1.jpg\" alt=\"\" width=\"1000\" height=\"1452\" srcset=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_01-1.jpg 1000w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_01-1-207x300.jpg 207w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_01-1-705x1024.jpg 705w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_01-1-768x1115.jpg 768w\"\u003e\u003cimg class=\"aligncenter size-full wp-image-57012\" src=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO%E8%AF%A6%E6%83%85-EN_02-1.jpg\" alt=\"\" width=\"1000\" height=\"553\" srcset=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_02-1.jpg 1000w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_02-1-300x166.jpg 300w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_02-1-768x425.jpg 768w\"\u003e\u003cimg class=\"aligncenter size-full wp-image-57013\" src=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO%E8%AF%A6%E6%83%85-EN_03-1.jpg\" alt=\"\" width=\"1000\" height=\"1364\" srcset=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_03-1.jpg 1000w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_03-1-220x300.jpg 220w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_03-1-751x1024.jpg 751w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_03-1-768x1048.jpg 768w\"\u003e\u003cimg class=\"aligncenter size-full wp-image-57014\" src=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO%E8%AF%A6%E6%83%85-EN_04-1.jpg\" alt=\"\" width=\"1000\" height=\"1793\" srcset=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_04-1.jpg 1000w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_04-1-167x300.jpg 167w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_04-1-571x1024.jpg 571w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_04-1-768x1377.jpg 768w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_04-1-857x1536.jpg 857w\"\u003e\u003cimg class=\"aligncenter size-full wp-image-57015\" src=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO%E8%AF%A6%E6%83%85-EN_05-1.jpg\" alt=\"\" width=\"1000\" height=\"1483\" srcset=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_05-1.jpg 1000w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_05-1-202x300.jpg 202w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_05-1-690x1024.jpg 690w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_05-1-768x1139.jpg 768w\"\u003e\u003cimg class=\"aligncenter size-full wp-image-57016\" src=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO%E8%AF%A6%E6%83%85-EN_06-1.jpg\" alt=\"\" width=\"1000\" height=\"1316\" srcset=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_06-1.jpg 1000w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_06-1-228x300.jpg 228w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_06-1-778x1024.jpg 778w, 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srcset=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_11-1.jpg 1000w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_11-1-186x300.jpg 186w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_11-1-636x1024.jpg 636w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_11-1-768x1236.jpg 768w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_11-1-955x1536.jpg 955w\"\u003e\u003cimg class=\"aligncenter size-full wp-image-57022\" src=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO%E8%AF%A6%E6%83%85-EN_12-1.jpg\" alt=\"\" width=\"1000\" height=\"825\" srcset=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_12-1.jpg 1000w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_12-1-300x248.jpg 300w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_12-1-768x634.jpg 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width=\"1000\" height=\"1007\" srcset=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_14-1.jpg 1000w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_14-1-298x300.jpg 298w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_14-1-150x150.jpg 150w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_14-1-768x773.jpg 768w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_14-1-180x180.jpg 180w\"\u003e\u003cimg class=\"aligncenter size-full wp-image-57028\" src=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO%E8%AF%A6%E6%83%85-EN_15-1.jpg\" alt=\"\" width=\"1000\" height=\"1108\" srcset=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_15-1.jpg 1000w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_15-1-271x300.jpg 271w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_15-1-924x1024.jpg 924w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_15-1-768x851.jpg 768w\"\u003e\u003cimg class=\"aligncenter size-full wp-image-57030\" src=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO%E8%AF%A6%E6%83%85-EN_16-1.jpg\" alt=\"\" width=\"1000\" height=\"1149\" srcset=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_16-1.jpg 1000w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_16-1-261x300.jpg 261w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_16-1-891x1024.jpg 891w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_16-1-768x882.jpg 768w\"\u003e\u003cimg class=\"aligncenter size-full wp-image-57032\" src=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO%E8%AF%A6%E6%83%85-EN_17-1.jpg\" alt=\"\" width=\"1000\" height=\"1453\" srcset=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_17-1.jpg 1000w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_17-1-206x300.jpg 206w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_17-1-705x1024.jpg 705w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_17-1-768x1116.jpg 768w\"\u003e\u003cimg class=\"aligncenter size-full wp-image-57033\" src=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO%E8%AF%A6%E6%83%85-EN_18-1.jpg\" alt=\"\" width=\"1000\" height=\"1461\" srcset=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_18-1.jpg 1000w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_18-1-205x300.jpg 205w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_18-1-701x1024.jpg 701w, https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/FF80-APO详情-EN_18-1-768x1122.jpg 768w\"\u003e\u003c\/p\u003e","brand":"ZWO","offers":[{"title":"ZWO FF80 APO: Quintuplet APO Telescope","offer_id":44491705450673,"sku":"ZWO-FF80-APO","price":1349.0,"currency_code":"GBP","in_stock":true},{"title":"ZWO FF80 APO: Quintuplet APO Telescope +AM3 + TC40","offer_id":44491705483441,"sku":"ZWO-FF80-APO-KIT","price":3356.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/zwo-ff80-apo-quintuplet-apo-telescope-603283.jpg?v=1718480592"},{"product_id":"zwo-ff65-apo-quintuplet-apo-telescope","title":"ZWO FF65 APO Quintuplet Telescope Premium Flat-Field Optics UK","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch2\u003eZWO FF65 APO + AM3 Mount + TC40 Tripod Imaging Bundle\u003c\/h2\u003e\n\u003ch2\u003e\u003cspan\u003eIncludes FREE ZWO PE160 Pier Extension\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Years\u003c\/p\u003e\n\u003cp\u003eThis carefully matched \u003cstrong\u003eZWO astrophotography bundle\u003c\/strong\u003e combines the advanced \u003cstrong\u003eFF65 APO flat-field refractor\u003c\/strong\u003e, the ultra-compact \u003cstrong\u003eAM3 harmonic drive mount\u003c\/strong\u003e, and the lightweight yet rigid \u003cstrong\u003eTC40 carbon fibre tripod\u003c\/strong\u003e. Designed for serious imaging while remaining highly portable, this setup delivers outstanding performance straight out of the box — with a \u003cstrong\u003eFREE PE160 Pier Extension\u003c\/strong\u003e included for added clearance, balance, and flexibility.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eZWO FF65 APO\u003c\/strong\u003e is a premium quintuplet refractor with a built-in field flattener, removing the complexity of back-focus spacing and additional optics. Fully compatible with full-frame sensors, it delivers sharp, well-corrected stars across the entire field, making it an ideal choice for modern astrophotography workflows.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eZWO AM3 mount\u003c\/strong\u003e uses a precision harmonic drive system to provide smooth, backlash-free tracking in a remarkably compact form. Quiet operation, excellent payload capacity, and seamless \u003cstrong\u003eASIAIR integration\u003c\/strong\u003e make it perfectly suited for portable and remote imaging setups. Supporting the system is the \u003cstrong\u003eTC40 carbon fibre tripod\u003c\/strong\u003e, offering excellent rigidity with minimal weight for easy transport.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eZWO FF65 APO Flat-Field Refractor Telescope\u003c\/li\u003e\n\u003cli\u003eZWO AM3 Harmonic Drive Mount\u003c\/li\u003e\n\u003cli\u003eZWO TC40 Carbon Fibre Tripod\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFREE\u003c\/strong\u003e ZWO PE160 Pier Extension\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eZWO FF65 APO – Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eQuintuplet air-spaced apochromatic optical design with two ED elements\u003c\/li\u003e\n\u003cli\u003eIntegrated flat-field design — no external flattener or spacing required\u003c\/li\u003e\n\u003cli\u003eFull-frame imaging support with a 44 mm image circle\u003c\/li\u003e\n\u003cli\u003e65 mm aperture, 416 mm focal length, f\/6.4 focal ratio\u003c\/li\u003e\n\u003cli\u003e2.5″ rack-and-pinion focuser with dual-speed (1:10) fine control\u003c\/li\u003e\n\u003cli\u003eIntegrated 360° rotator with engraved degree scale\u003c\/li\u003e\n\u003cli\u003eSupports M68, M54, and M48 adapters, including 2″ filter thread on M48\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eZWO AM3 Mount – Highlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHarmonic drive system for smooth, quiet, backlash-free tracking\u003c\/li\u003e\n\u003cli\u003ePayload capacity: 8 kg (no counterweight) \/ 13 kg (with counterweight)\u003c\/li\u003e\n\u003cli\u003eWi-Fi and USB connectivity with full ASIAIR compatibility\u003c\/li\u003e\n\u003cli\u003eSupports both alt-azimuth and equatorial operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eZWO TC40 Tripod – Overview\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-strength carbon fibre construction\u003c\/li\u003e\n\u003cli\u003eAdjustable height with secure locking clamps\u003c\/li\u003e\n\u003cli\u003eLightweight design — approximately 2.3 kg\u003c\/li\u003e\n\u003cli\u003eDetachable pier base compatible with AM3 and AM5 mounts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePassion for the Night Sky, Delivered – Dark Clear Skies UK.\u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eImage Gallery\u003c\/h3\u003e\n\u003cdiv class=\"product-gallery\"\u003e\n\u003cimg alt=\"ZWO FF65 APO front view\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ZWO\/APO\/FF65-APO-%C2%A4%C3%9B%C3%83%C3%9A-EN_01.webp\"\u003e \u003cimg alt=\"ZWO FF65 APO side view\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ZWO\/APO\/FF65-APO-%C2%A4%C3%9B%C3%83%C3%9A-EN_02.webp\"\u003e \u003cimg alt=\"ZWO FF65 APO focuser and rear assembly\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ZWO\/APO\/FF65-APO-%C2%A4%C3%9B%C3%83%C3%9A-EN_03.webp\"\u003e \u003cimg alt=\"ZWO FF65 APO assembled view\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ZWO\/APO\/FF65-APO-%C2%A4%C3%9B%C3%83%C3%9A-EN_04.webp\"\u003e \u003cimg alt=\"ZWO FF65 APO supplied accessories\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ZWO\/APO\/FF65-APO-%C2%A4%C3%9B%C3%83%C3%9A-EN_05.webp\"\u003e \u003cimg alt=\"ZWO FF65 APO optical design diagram\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ZWO\/APO\/FF65-APO-%C2%A4%C3%9B%C3%83%C3%9A-EN_06.webp\"\u003e \u003cimg alt=\"ZWO FF65 APO imaging setup example\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ZWO\/APO\/FF65-APO-%C2%A4%C3%9B%C3%83%C3%9A-EN_07.webp\"\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"ZWO","offers":[{"title":"ZWO FF65 APO: Quintuplet APO Telescope","offer_id":44491688149169,"sku":"ZWO-FF65-APO","price":859.0,"currency_code":"GBP","in_stock":true},{"title":"ZWO FF65 APO: Quintuplet APO Telescope + AM3 +TC40 + Reducer","offer_id":44491688181937,"sku":"ZWO-FF65-APO-KIT2","price":2866.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/zwo-ff65-apo-quintuplet-apo-telescope-571187.jpg?v=1718480591"},{"product_id":"william-optics-redcat-51-apo-v2","title":"William Optics RedCat 51 APO v2","description":"\u003ch1\u003eWilliam Optics RedCat 51 APO 250mm f\/4.9 Petzval Telescope\u003c\/h1\u003e\n\u003cp\u003eWilliam Optics RedCat 51 APO v2 .\u003c\/p\u003e\u003cp\u003eDiscover the ultimate portable astrophotography tool with the \u003cstrong\u003eWilliam Optics RedCat 51 APO\u003c\/strong\u003e 250mm f\/4.9 Petzval telescope. Designed with the avid astrophotographer in mind, this compact yet powerful telescope delivers exceptional image quality at an affordable price.\u003c\/p\u003e\n\u003ch2\u003eUnmatched Optical Performance\u003c\/h2\u003e\n\u003cp\u003eWith its 51mm aperture, high-quality FPL-53 and FPL-51 glass elements, and Petzval optical design, the \u003cb\u003eWilliam Optics RedCat 51 APO v2\u003c\/b\u003e ensures a flat field and stunning image clarity. Compatible with full-frame cameras, it’s perfect for capturing celestial wonders in incredible detail.\u003c\/p\u003e\n\u003ch2\u003ePrecise Focusing for Astrophotography\u003c\/h2\u003e\n\u003cp\u003eThe  fWilliam Optics RedCat 51 APO v2 features a \u003cstrong\u003ehelical focuser\u003c\/strong\u003e for precise and smooth focusing, making it ideal for photography. Its field rotator comes equipped with a scale, enabling accurate mosaic shots for expansive views of the night sky.\u003c\/p\u003e\n\u003ch2\u003eEasy Camera Mounting and Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe built-in M48 thread allows easy attachment of most camera models, making the William Optics RedCat 51 APO v2 a versatile choice for photographers. Additionally, the Vixen-style dovetail ensures quick mounting to both astronomical mounts and photo tripods.\u003c\/p\u003e\n\u003ch2\u003eEnhanced Design and Durability\u003c\/h2\u003e\n\u003cp\u003eIn October 2019, the \u003cstrong\u003eRedCat 51\u003c\/strong\u003e was enhanced for even better performance. While the improvements come with a slight price increase, the RedCat remains an exceptional value. Looking for a larger version? Check out the \u003cstrong\u003eRedCat 71\u003c\/strong\u003e for even more optical power.\u003c\/p\u003e\n\u003ch2\u003eWhat's Included in the Package\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWilliam Optics RedCat 51 APO v2 250mm f\/4.9 Petzval telescope\u003c\/li\u003e\n\u003cli\u003eProtective carry bag\u003c\/li\u003e\n\u003cli\u003eVixen-style dovetail for mounting\u003c\/li\u003e\n\u003cli\u003eM48 thread for camera attachment\u003c\/li\u003e\n\u003cli\u003eBahtinov mask built into the cover cap for easy focusing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEmbark on extraordinary astrophotography adventures with the \u003cb\u003eWilliam Optics RedCat 51 APO v2\u003c\/b\u003e and capture the universe like never before!\u003c\/p\u003e\n\u003cdiv class=\"data item content\" id=\"description\"\u003e\n\u003cdiv class=\"product attribute description\"\u003e\n\u003cdiv class=\"value\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"value\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"value\"\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cimg alt=\"\"\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":42676612202673,"sku":"L-RC51II-U","price":798.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/william-optics-redcat-51-v2-447777.jpg?v=1734351195"},{"product_id":"sharpstar-61edph-mk-iii-apochromatic-refractor-telescope","title":"Sharpstar 61EDPH Mk III Apochromatic Refractor Telescope","description":"\u003ch1\u003eSharpstar 61EDPH Mk III ED Triplet Apochromatic Refractor Telescope\u003c\/h1\u003e\n\u003ch2\u003eUltimate Portable Astro Photo and Nature Photography Instrument\u003c\/h2\u003e\n\u003cp\u003eThe Sharpstar 61EDPH Mk III has long been a favorite among astrophotography enthusiasts. With optimized features and enhanced performance, this telescope is the perfect choice for capturing stunning celestial images.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e61mm aperture with f\/5.9 three-element full separation optical design\u003c\/li\u003e\n\u003cli\u003eIncludes two ED lenses for superior imaging quality\u003c\/li\u003e\n\u003cli\u003eNew 2.5\" dual-speed rack and pinion focuser with 10:1 fine focus\u003c\/li\u003e\n\u003cli\u003eUniversal interfaces for both 2\" and 1.25\" eyepieces\u003c\/li\u003e\n\u003cli\u003e360-degree angle adjuster for optimal positioning\u003c\/li\u003e\n\u003cli\u003eUniversal dovetail bar and multifunctional handle included\u003c\/li\u003e\n\u003cli\u003eFinderscope mounting bracket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 61EDPH Mk III features a triplet air-spaced APO design and two low dispersion ED glass elements for excellent imaging performance. With a focal length of 360mm and a focal ratio of 5.9, this telescope supports a 44mm full-frame imaging circle, making it ideal for both visual observation and astrophotography.\u003c\/p\u003e\n\u003cp\u003eThis model has upgraded its handle to a multifunctional design that accommodates a universal Vixen-style finder scope base. Additionally, the 61EDPH Mk III is equipped with a 200mm long Vixen-style dovetail plate for easier attachment to equatorial mounts, enhancing balance and usability. Its smooth lines and classic red and white color scheme reflect high-quality CNC machining and durable surface finishes.\u003c\/p\u003e\n\u003ch2\u003eReducer and Flattener (Optional Accessory)\u003c\/h2\u003e\n\u003cp\u003eThis telescope can be enhanced with a dedicated full-frame reducer that connects via M68 × 1 threads. This reducer allows for an extended back focus of 75mm, reducing the focal ratio to f\/4.4, making it an excellent choice for deep-sky astrophotography.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable border=\"1\" cellpadding=\"1\" cellspacing=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSharpstar 61EDPH III Parameters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAperture Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e61mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e360mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ef\/5.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eObjective Lens\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTriplet air-spaced APO (includes two ED glasses)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLimiting Visual Magnitude\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.93 arc seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTube Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e272mm (Dew shield contracted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOTA Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.48kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGross Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.92kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTube Outer Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e75mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncluded Accessories\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTelescope ring, dovetail plate, handle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Sharpstar","offers":[{"title":"Default Title","offer_id":42704677634225,"sku":"","price":515.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sharpstar-61-edph-iii-with-flattener-664628.webp?v=1718480279"},{"product_id":"redcat-71-apo-350mm-f-4-9-astrograph-telescope-1","title":"RedCat 71 APO 350mm f\/4.9 Astrograph Telescope","description":"\u003c!-- Product Title --\u003e\n\u003ch1\u003eRedCat 71 APO 350mm f\/4.9 Astrograph Telescope\u003c\/h1\u003e\n\u003c!-- Product Availability --\u003e\n\u003cp\u003e\u003cstrong\u003eIn Stock\u003c\/strong\u003e\u003c\/p\u003e\n\u003c!-- Key Features --\u003e\n\u003ch2\u003eKey Features of RedCat 71 APO 350mm f\/4.9\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e71mm f\/4.9 Astrograph:\u003c\/strong\u003e Ideal for astrophotography with a wide, flat field.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFPL-53 Glass:\u003c\/strong\u003e Achieves superior color correction for clear, vivid images.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInnovative Optical Design:\u003c\/strong\u003e 4 elements in 3 groups (2-1-1 configuration) offering unique, patented performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e45mm Full Frame Imaging Circle:\u003c\/strong\u003e Perfect for full-frame sensors, providing edge-to-edge clarity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Helical Focusing:\u003c\/strong\u003e Allows for smooth and accurate focus adjustments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Accessories Included:\u003c\/strong\u003e Comes with mounting rings, a 21cm Red Vixen-style dovetail, and Cat saddle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight and Portable:\u003c\/strong\u003e Weighs just 6.2 lbs (2.8 kg) for the optical tube assembly, making it easy to handle.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Detailed Description --\u003e\n\u003ch2\u003eDetailed Description of the RedCat 71\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eRedCat 71 APO\u003c\/strong\u003e is a premium 71mm f\/4.9 refractor telescope designed specifically for astrophotography enthusiasts. Featuring a unique Petzval optical design with a doublet front element incorporating FPL-53 glass, plus a single central element and a single rear lens, this telescope ensures a flat image plane without the need for an additional flattener.\u003c\/p\u003e\n\u003cp\u003eThis innovative design not only covers a 45mm imaging circle but also delivers pinpoint stars and excellent color correction across the field. The RedCat 71 is compatible with both full-frame and APS-C sensors, making it a versatile choice for capturing the night sky in stunning detail.\u003c\/p\u003e\n\u003c!-- Call to Action --\u003e\n\u003ch2\u003eWhy Choose the RedCat 71 APO?\u003c\/h2\u003e\n\u003cp\u003eThe RedCat 71 stands out with its top-notch anodizing finish, a lockable, calibrated helical focuser, and the inclusion of a super bright Bahtinov mask for precise focusing. Whether you're a seasoned astrophotographer or a beginner looking to explore the universe, this telescope offers the performance and reliability you need.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDon't miss the chance to own this exceptional telescope!\u003c\/strong\u003e Purchase the \u003cstrong\u003eRedCat 71 APO 350mm f\/4.9 Astrograph Telescope\u003c\/strong\u003e now from Dark Clear Skies and start capturing the wonders of the night sky with unmatched clarity and precision.\u003c\/p\u003e\n\u003c!-- What's in the Box --\u003e\n\u003ch2\u003eWhat’s Included in the Box?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e[A] M48 Dust Cap\/Thread\u003c\/li\u003e\n\u003cli\u003e[B] Tilt Adapter\u003c\/li\u003e\n\u003cli\u003e[C] Camera Angle Rotator\u003c\/li\u003e\n\u003cli\u003e[D] Rotator Tension Knob\u003c\/li\u003e\n\u003cli\u003e[E] Saddle Handlebar (with two M4 thumb screws)\u003c\/li\u003e\n\u003cli\u003e[F] Helical Focuser with 2GT Gear Ring\u003c\/li\u003e\n\u003cli\u003e[G] Arca Swiss\/Vixen Plate\u003c\/li\u003e\n\u003cli\u003e[H] Mounting Rings\u003c\/li\u003e\n\u003cli\u003e[I] Dew Shield with Focus Tension Ring\u003c\/li\u003e\n\u003cli\u003e[J] Super Bright Bahtinov Mask\u003c\/li\u003e\n\u003cli\u003e[K] Soft Carry Bag\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Specifications --\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal Length:\u003c\/strong\u003e 350mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAperture:\u003c\/strong\u003e 71mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal Ratio:\u003c\/strong\u003e f\/4.9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 6.2lbs \/ 2.8kg (OTA only); 8.2lbs \/ 3.7kg (OTA with ring, dovetail, and saddle)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImaging Circle:\u003c\/strong\u003e 45mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Call to Action --\u003e\n\u003ch2\u003eReady to Capture the Stars?\u003c\/h2\u003e\n\u003cp\u003eOrder the \u003cstrong\u003eRedCat 71 APO 350mm f\/4.9 Astrograph Telescope\u003c\/strong\u003e today from \u003cstrong\u003eDark Clear Skies\u003c\/strong\u003e and elevate your astrophotography to the next level. Click the button below to make your purchase and enjoy free shipping on select items!\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":42724844241073,"sku":"T-C-71RD","price":1680.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/redcat-71-apo-350mm-f49-astrograph-telescope-503556.jpg?v=1718480153"},{"product_id":"sky-rover-60mm-f5-super-astrograph","title":"Sky Rover 60mm F\/5 Super Astrograph Telescope | Dark Clear Skies","description":"\u003ch3\u003eSky Rover 60SA Petzval Astrograph\u003c\/h3\u003e\n\n\u003cp\u003e\nThe Sky Rover 60SA is a compact Petzval astrograph designed for modern astrophotography. \nIntroduced in 2023, this telescope uses a four-element Petzval optical design which produces a \nflat, well-corrected field without requiring a separate field flattener or reducer.\n\u003c\/p\u003e\n\n\u003cp\u003e\nWith a generous \u003cstrong\u003e45mm image circle\u003c\/strong\u003e, the 60SA fully supports full-frame cameras, \nmaking it suitable for both dedicated astronomy cameras and DSLR imaging systems. \nThe integrated quad-element design simplifies imaging setups while maintaining excellent edge-to-edge star performance.\n\u003c\/p\u003e\n\n\u003cp\u003e\nAt just \u003cstrong\u003e300mm focal length (F\/5)\u003c\/strong\u003e, the telescope is ideal for wide-field deep-sky imaging of nebulae, \nstar fields and large astronomical objects. The compact optical tube also makes the 60SA highly portable \nand easy to balance on lightweight equatorial mounts.\n\u003c\/p\u003e\n\n\u003cdiv\u003e\n\u003cimg src=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/0661\/3873\/4829\/files\/4_6f1f4148-16fd-4791-a0cc-f5504f640ae3.png?v=1685094630\"\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eImaging Performance\u003c\/h3\u003e\n\n\u003cdiv\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0661\/3873\/4829\/files\/2_eeb6decd-447b-41af-8e72-d256d089c92c.jpg?v=1678241863\" alt=\"\"\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Sky Rover 60mm F\/5 Super Astrograph\u003cbr\u003e\n\u003cstrong\u003eAperture:\u003c\/strong\u003e 60mm\u003cbr\u003e\n\u003cstrong\u003eFocal Length:\u003c\/strong\u003e 300mm\u003cbr\u003e\n\u003cstrong\u003eFocal Ratio:\u003c\/strong\u003e F\/5\u003cbr\u003e\n\u003cstrong\u003eOptical Design:\u003c\/strong\u003e 4 elements in 4 groups (Petzval design) with ED and lanthanum glass\u003cbr\u003e\n\u003cstrong\u003eImage Circle:\u003c\/strong\u003e 45mm (Full-frame capable)\u003cbr\u003e\n\u003cstrong\u003eLens Coatings:\u003c\/strong\u003e Fully Multi-Coated (FMC)\u003cbr\u003e\n\u003cstrong\u003eFocuser:\u003c\/strong\u003e 2.8\" dual-speed rack-and-pinion focuser with Camera Angle Adjuster (CAA)\u003cbr\u003e\n\u003cstrong\u003eFocuser Travel:\u003c\/strong\u003e 19mm (optimised for astrophotography)\u003cbr\u003e\n\u003cstrong\u003eRear Connections:\u003c\/strong\u003e M70×1 thread, M48×0.75 female\u003cbr\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e CNC machined aluminium alloy\u003cbr\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e approx. 265mm (retracted) \/ 340mm (extended)\u003cbr\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e approx. 2.98kg (OTA)\u003cbr\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Vixen-style dovetail plate with integrated carrying handle\n\u003c\/p\u003e\n\n\u003ch3\u003eTelescope Structure\u003c\/h3\u003e\n\n\u003cdiv\u003e\n\u003cimg src=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/0661\/3873\/4829\/files\/11_6bf6931e-7534-46b6-b0c4-95b51c1e2817.png?v=1685094742\"\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"text-align:center;\"\u003e\n(1) Thread interface    \n(2) Camera Angle Adjuster (CAA)   \n(3) Focuser   \n(4) Finder shoe   \n(5) Handle\n\u003c\/p\u003e\n\n\u003cp style=\"text-align:center;\"\u003e\n(6) Dew shield   \n(7) Coarse focus wheel   \n(8) Fine focus wheel   \n(9) Finder shoe   \n(10) Vixen dovetail plate\n\u003c\/p\u003e\n\n\u003ch3\u003eMounting Plate \u0026amp; Focal Plane Adjustment\u003c\/h3\u003e\n\n\u003cdiv\u003e\n\u003cimg src=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/0661\/3873\/4829\/files\/7_2cbc3a9f-539f-4d90-8250-e0ba0784675f.jpg?v=1685095484\"\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\n① Standard narrow plate clamp position\u003cbr\u003e\n② CAA locking screw\u003cbr\u003e\n③ Safety retention screws (M3)\u003cbr\u003e\n④ ARCA-Swiss clamp mounting position\u003cbr\u003e\n⑤ ARCA-Swiss quick-release plate\u003cbr\u003e\n⑥ Narrow dovetail plate\n\u003c\/p\u003e\n\n\u003ch3\u003eARCA-Swiss Quick Release Plate Layout\u003c\/h3\u003e\n\n\u003cdiv\u003e\n\u003cimg src=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/0661\/3873\/4829\/files\/8_17047513-c70b-480b-bdb3-4d814de28c69.jpg?v=1685095600\"\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\nNote: The mounting plate supports direct connection to camera mounts or tripod heads using the ARCA-Swiss standard.\n\u003c\/p\u003e\n\n\u003ch3\u003eHandle Mounting Points\u003c\/h3\u003e\n\n\u003cdiv\u003e\n\u003cimg src=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/0661\/3873\/4829\/files\/9_da1018dc-70c4-4636-8784-21bc14fcdc9b.jpg?v=1685095682\"\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eBack Focus Illustration\u003c\/h3\u003e\n\n\u003cdiv\u003e\n\u003cimg src=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/0661\/3873\/4829\/files\/10_c299e492-6259-420b-8295-028f286a39c9.jpg?v=1685095737\"\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eProduct Gallery\u003c\/h3\u003e\n\n\u003cdiv\u003e\n\u003cimg src=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/0661\/3873\/4829\/files\/1_e7b87c44-de4e-4822-8ce7-445e030cdcc2.jpg?v=1685095780\"\u003e\n\u003c\/div\u003e","brand":"Sky Rover","offers":[{"title":"Default Title","offer_id":43053114425521,"sku":null,"price":899.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sky-rover-60mm-f5-super-astrograph-827130.webp?v=1718364976"},{"product_id":"william-optics-pleiades-68-astrograph-f-3-8-advanced-imaging-telescope","title":"William Optics Pleiades 68 Astrograph - f\/3.8 Advanced Imaging Telescope","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch2\u003eWilliam Optics Pleiades 68 Astrograph - f\/3.8 Advanced Imaging Telescope\u003c\/h2\u003e\n\u003cp\u003eUnlock the secrets of the universe with the \u003cstrong\u003eWilliam Optics Pleiades 68 Astrograph\u003c\/strong\u003e. Engineered for precision and clarity, this telescope is part of our esteemed \u003cstrong\u003eWIFD series\u003c\/strong\u003e, offering unparalleled imaging performance for both professional astrophotographers and passionate hobbyists.\u003c\/p\u003e\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e7-Element Super ED APO Lens:\u003c\/strong\u003e The Pleiades 68 features a meticulously designed 7-element lens system, including three Super Extra-low Dispersion (ED) glass elements. This advanced design virtually eliminates chromatic aberration, ensuring sharp, high-contrast images with accurate colour fidelity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast f\/3.8 Aperture:\u003c\/strong\u003e Capture deep-sky objects like galaxies, nebulae, and star clusters with ease. The fast \u003cstrong\u003ef\/3.8 aperture\u003c\/strong\u003e allows for shorter exposure times, making this telescope perfect for astrophotography even under challenging light conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Field Flattener:\u003c\/strong\u003e Built-in field flattener ensures edge-to-edge sharpness across the entire frame, eliminating the need for external flatteners or correctors. Get seamless, distortion-free images every time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM48 \u0026amp; M54 Camera Adapters:\u003c\/strong\u003e The Pleiades 68 is equipped with M48 and M54 adapters, ensuring compatibility with a wide range of CCD, DSLR, and mirrorless cameras. Effortlessly integrate your existing setup for a hassle-free experience.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight \u0026amp; Portable Design:\u003c\/strong\u003e Weighing just 3.8kg (8.38 lbs), the Pleiades 68 Astrograph is designed for portability. Take it on the road to remote dark-sky sites or set it up conveniently in your backyard observatory.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Build Quality:\u003c\/strong\u003e Crafted with high-quality materials, this telescope is built to withstand the rigors of field use, ensuring consistent performance whether you're at home or exploring the great outdoors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Choose the Pleiades 68 Astrograph?\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003ePleiades 68 Astrograph\u003c\/strong\u003e offers an unbeatable combination of optical quality, ease of use, and adaptability. Whether you're a seasoned astrophotographer looking to expand your collection or a beginner eager to capture stunning celestial images, this telescope delivers.\u003c\/p\u003e\n\u003ch3\u003eSpecifications:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAperture:\u003c\/strong\u003e 68mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal Ratio:\u003c\/strong\u003e f\/3.8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal Length:\u003c\/strong\u003e 258mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLens Elements:\u003c\/strong\u003e 7 (including 3 Super ED elements)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.8kg (8.38 lbs)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdapters:\u003c\/strong\u003e M48 \u0026amp; M54\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eField Flattener:\u003c\/strong\u003e Integrated\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCritical Back Focus Information\u003c\/h3\u003e\n\u003cp\u003eThe Pleiades 68 requires a precise \u003cstrong\u003eback focus of 55mm\u003c\/strong\u003e to ensure optimal performance. Due to the fast focal ratio, maintaining this back focus is crucial for achieving sharp and detailed images. Adjust your setup carefully to enhance sensitivity and maximize the telescope's imaging capabilities.\u003c\/p\u003e\n\u003ch3\u003eAttention: Filter Compatibility\u003c\/h3\u003e\n\u003cp\u003eNote: This telescope model does not include an internal M48 filter thread. Its design prioritizes lens proximity to the camera adapter to prevent interference. For the best experience, we recommend using a filter wheel with M48 or M54 threading to maintain seamless optical performance.\u003c\/p\u003e\n\u003ch3\u003eWIFD Series: Excellence in Astro-Imaging\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eWilliam Optics Pleiades 68 Astrograph\u003c\/strong\u003e is part of our renowned \u003cstrong\u003eWIFD series\u003c\/strong\u003e, designed to meet the needs of serious astrophotographers. This series represents the pinnacle of innovation, offering instruments that are both visually stunning and technically superior.\u003c\/p\u003e\n\u003ch3\u003eUnleash Your Creativity with the Pleiades 68\u003c\/h3\u003e\n\u003cp\u003eWhether you're capturing intricate details of a distant nebula or the expansive beauty of a galaxy, the \u003cstrong\u003ePleiades 68 Astrograph\u003c\/strong\u003e brings the universe to your fingertips. Its superior optics, user-friendly features, and stunning design make it the ultimate tool for exploring the night sky.\u003c\/p\u003e\n\u003ch3\u003eOrder Now and Experience the Difference\u003c\/h3\u003e\n\u003cp\u003eBring the cosmos closer than ever before with the William Optics Pleiades 68 Astrograph. Available now at Dark Clear Skies with fast shipping options. Elevate your astrophotography and unlock new possibilities with this exceptional telescope. Don't miss your chance to own a true masterpiece of design and engineering.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eManual available upon request. Please contact our customer support for assistance.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"William Optics","offers":[{"title":"Pleiades 68 Astrograph f\/3.8","offer_id":43379406733489,"sku":"T-P-68BU-2","price":2098.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/william-optics-pleiades-68-astrograph-f38-147457.jpg?v=1718480595"},{"product_id":"askar-120apo-triplet-f-7-apochromatic-refractor-telescope","title":"Askar 120APO Triplet f\/7 Apochromatic Refractor Telescope","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEnhance Your Stargazing with the ASKAR 120APO Triplet f\/7 Apochromatic Refractor Telescope\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnlock the secrets of the cosmos with the ASKAR 120APO Triplet f\/7 Apochromatic Refractor Telescope, boasting a 120mm aperture for unparalleled light-gathering capabilities. This premium telescope enhances resolution and contrast, allowing astronomers to capture more detailed and brighter celestial images. Its optical design includes a triplet air-spaced APO lens with one piece of ED glass to significantly reduce chromatic aberration, ensuring exceptional color accuracy and clarity in your observations.\u003c\/p\u003e\n\u003cp\u003eThe ASKAR 120APO is not only technologically advanced but also user-friendly. It features a lightweight and compact design, weighing just 6.5kg including tube rings, making it ideal for outdoor expeditions. Its mechanical design includes a retractable dew shield with enlarged locking screws for easy adjustment and a dual-side finder base to accommodate additional astronomical accessories without the need for disassembly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDual-speed rack and pinion focuser with a large 3.3-inch aperture, compatible with most motorized focusers.\u003c\/li\u003e\n\u003cli\u003eAn extended Vixen dovetail plate for improved balance on mounts and compatibility with optional Losmandy dovetail plates for versatile mounting options.\u003c\/li\u003e\n\u003cli\u003eCNC machined tube with high-quality anodization and surface spray paint, adding a stylish touch with its bright orange accents on an ivory-white body.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eExperience the skies like never before with the ASKAR 120APO, crafted to bring you closer to the stars and deepen your understanding of the universe. Join the ranks of advanced astronomers and explore the night sky with precision and ease.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ASKAR\/120APO\/ASKAR-120APO-askar-120apo-triplet-f-7-apochromatic-refractor-telescope-3.webp\"\u003e\u003c\/p\u003e\n\u003ctable width=\"84.20%\" cellspacing=\"0\" align=\"center\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Size Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ASKAR\/120APO\/ASKAR-120APO-askar-120apo-triplet-f-7-apochromatic-refractor-telescope-9.webp\"\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ASKAR\/120APO\/ASKAR-120APO-askar-120apo-triplet-f-7-apochromatic-refractor-telescope-9.webp\" id=\"1698574403969179648\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eInstruction for Detaching the 120APO Segmented Lens Tube\u003cbr\u003e(suitable for the binoviewer)\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ASKAR\/120APO\/ASKAR-120APO-askar-120apo-triplet-f-7-apochromatic-refractor-telescope-10.webp\"\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ASKAR\/120APO\/ASKAR-120APO-askar-120apo-triplet-f-7-apochromatic-refractor-telescope-10.webp\" id=\"1698575268803928064\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ASKAR\/120APO\/ASKAR-120APO-askar-120apo-triplet-f-7-apochromatic-refractor-telescope-10a.webp\"\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ASKAR\/120APO\/ASKAR-120APO-askar-120apo-triplet-f-7-apochromatic-refractor-telescope-10a.webp\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eThe Locking Screw Position Diagram\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ASKAR\/120APO\/ASKAR-120APO-askar-120apo-triplet-f-7-apochromatic-refractor-telescope-11.webp\"\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ASKAR\/120APO\/ASKAR-120APO-askar-120apo-triplet-f-7-apochromatic-refractor-telescope-11.webp\" id=\"1682296090703986688\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003e120APO EAF（optional） Installation\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ASKAR\/120APO\/ASKAR-120APO-askar-120apo-triplet-f-7-apochromatic-refractor-telescope-12.webp\"\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ASKAR\/120APO\/ASKAR-120APO-askar-120apo-triplet-f-7-apochromatic-refractor-telescope-12.webp\" id=\"1698575437919641600\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ASKAR\/120APO\/ASKAR-120APO-askar-120apo-triplet-f-7-apochromatic-refractor-telescope-12a.webp\"\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ASKAR\/120APO\/ASKAR-120APO-askar-120apo-triplet-f-7-apochromatic-refractor-telescope-12a.webp\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eOptical Path Diagram\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ASKAR\/120APO\/ASKAR-120APO-askar-120apo-triplet-f-7-apochromatic-refractor-telescope-13.webp\"\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ASKAR\/120APO\/ASKAR-120APO-askar-120apo-triplet-f-7-apochromatic-refractor-telescope-13.webp\" id=\"1698575621500133376\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eSpot Diagram\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ASKAR\/120APO\/ASKAR-120APO-askar-120apo-triplet-f-7-apochromatic-refractor-telescope-14.webp\"\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ASKAR\/120APO\/ASKAR-120APO-askar-120apo-triplet-f-7-apochromatic-refractor-telescope-14.webp\" id=\"1698575735500967936\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ASKAR\/120APO\/ASKAR-120APO-askar-120apo-triplet-f-7-apochromatic-refractor-telescope-14a.webp\"\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ASKAR\/120APO\/ASKAR-120APO-askar-120apo-triplet-f-7-apochromatic-refractor-telescope-14a.webp\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":43790967931057,"sku":"ASKAR-120APO","price":1499.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-120apo-triplet-f7-apochromatic-refractor-telescope-512497.webp?v=1782294873"},{"product_id":"askar-sqa55-55mm-f-4-8-petzval-astrograph","title":"Askar SQA55 55mm f\/4.8 Petzval Astrograph  | Dark Clear Skies","description":"\u003ch2\u003eAskar SQA55 55mm f\/4.8 Petzval Astrograph\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAskar SQA55 55mm f\/4.8 Petzval Astrograph\u003c\/strong\u003e is a compact wide-field refractor designed specifically for astrophotography. Featuring a precision \u003cstrong\u003equintuplet air-spaced optical design\u003c\/strong\u003e incorporating both SD and ED glass elements, the Askar SQA55 delivers excellent colour correction and a naturally flat imaging field without the need for an additional field flattener.\u003c\/p\u003e\n\u003cp\u003eWith a \u003cstrong\u003e264mm focal length\u003c\/strong\u003e and fast \u003cstrong\u003ef\/4.8 focal ratio\u003c\/strong\u003e, the Askar SQA55 is well suited for capturing large nebulae, star fields and wide deep-sky objects when paired with modern CMOS astronomy cameras.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Askar SQA55 side view image\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/2c638bd8-1af3-4655-af56-84906c938ada.jpg?v=1772705451\"\u003e\u003c\/p\u003e\n\u003ch2\u003eAdvanced Petzval Optical Design\u003c\/h2\u003e\n\u003cp\u003eThe Askar SQA55 uses a \u003cstrong\u003equintuplet Petzval optical configuration\u003c\/strong\u003e that integrates field correction directly into the telescope. This design combines one SD glass element and one ED glass element to minimise chromatic aberration while maintaining excellent contrast and sharp star profiles across the image field.\u003c\/p\u003e\n\u003cp\u003eOn-axis star PSF performance reaches approximately \u003cstrong\u003e2.5 μm\u003c\/strong\u003e, with corner performance around \u003cstrong\u003e4 μm\u003c\/strong\u003e. This ensures tight, round stars across the frame and consistent resolution from centre to edge. The telescope supports a generous \u003cstrong\u003e44mm image circle\u003c\/strong\u003e, making the Askar SQA55 suitable for full-frame astrophotography cameras.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Camera lens with Petzval lens structure on a gray background\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/3367f0f6-5317-4fe6-b8aa-1f44f122a007.jpg?v=1772705453\"\u003e\u003c\/p\u003e\n\u003ch2\u003eSimplified Imaging Setup\u003c\/h2\u003e\n\u003cp\u003eThanks to the Petzval optical architecture, the Askar SQA55 simplifies the imaging setup by eliminating the need for an external field flattener. Optimal performance is achieved with a camera spacing of approximately \u003cstrong\u003e55mm\u003c\/strong\u003e from the rear \u003cstrong\u003eM48×0.75 thread\u003c\/strong\u003e, although a range of \u003cstrong\u003e50–60mm\u003c\/strong\u003e is supported.\u003c\/p\u003e\n\u003cp\u003eThis flexible spacing allows the telescope to integrate easily with filter wheels, rotators and dedicated astronomy cameras used in modern astrophotography systems.\u003c\/p\u003e\n\u003ch2\u003eCompact and Portable Design\u003c\/h2\u003e\n\u003cp\u003eThe optical tube assembly features a removable and reversible lens hood, allowing the telescope to be stored in a more compact configuration for transport. This makes the Askar SQA55 particularly well suited for portable astrophotography setups and travel to dark-sky locations.\u003c\/p\u003e\n\u003cp\u003eThe OTA weighs just \u003cstrong\u003e1.84kg\u003c\/strong\u003e (approximately \u003cstrong\u003e2.18kg including handle and dovetail\u003c\/strong\u003e), making it compatible with a wide range of equatorial tracking mounts.\u003c\/p\u003e\n\u003ch2\u003eWide-Field Astrophotography Performance\u003c\/h2\u003e\n\u003cp\u003eThe short focal length and fast focal ratio make the Askar SQA55 ideal for imaging wide deep-sky targets such as emission nebulae, molecular clouds and large star fields. When paired with modern APS-C or full-frame CMOS cameras, the telescope can capture expansive regions of the night sky in a single frame.\u003c\/p\u003e\n\u003cp\u003eAstrophotographers looking for longer focal lengths may also consider larger models such as the \u003ca href=\"\/products\/askar-sqa106-f-4-8-quintuplet-petzval-apo\"\u003eAskar SQA106\u003c\/a\u003e or the \u003ca href=\"\/products\/askar-80phq-80mm-f-7-5-ed-apo-quadruplet\"\u003eAskar 80PHQ\u003c\/a\u003e, while the \u003ca href=\"\/collections\/askar\"\u003efull range of Askar telescopes\u003c\/a\u003e includes astrographs designed for a variety of astrophotography targets.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Camera lens with filter thread and quick release base position on a gray background\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/153ea354-6820-4ccb-a780-0b0651467419.jpg?v=1772705452\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Camera lens with variable-aperture details on a white background\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/b0d036cd-584a-46f5-8419-af97d2f4c945.jpg?v=1772705452\"\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAperture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e55mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e264mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ef\/4.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptical Design\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eQuintuplet Petzval APO (SD + ED glass)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eImage Circle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e44mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAperture Blades\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAdjustable Aperture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ef\/4.8 – f\/22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClosest Focus Distance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter Thread\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRear Connection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM48×0.75 (with filter thread)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRecommended Back Focus\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e55mm (50–60mm supported)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOTA Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.84kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.18kg (with handle and dovetail)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eAstrophotography Examples\u003c\/h2\u003e\n\u003cp\u003e\u003cimg alt=\"Grid of starry night sky images from different parts of the frame.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/c2203a57-dbbd-4eaa-9d78-a6fb1922b24f.jpg?v=1772705452\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNGC 7000 – captured with the Askar SQA55 and ZWO ASI6200 camera\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"star shape grid\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/3f7feeb0-0bd4-4921-821b-52d5bcf4fb58.jpg?v=1772705451\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eM20 \u0026amp; M8 – captured with the Askar SQA55 and ZWO ASI2600MC Pro\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Red and black nebula with star formation, possibly in space.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/fa1405f3-39a2-492c-a514-56335ce844cc.jpg?v=1772705453\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNGC 6888 – captured with the Askar SQA55 and ZWO ASI2600M\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg alt=\"Glowing nebula with red and blue colors against a starry black background\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-80phq-80mm-f-7.5-ed-apo-quadruplet-apochromatic-astrograph-refractor-telescope-NGC2264.webp?v=1772703957\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eRecommended Camera Pairings\u003c\/h2\u003e\n\u003cp\u003eThe Askar SQA55 pairs exceptionally well with modern cooled astronomy cameras. Many astrophotographers combine this telescope with \u003cstrong\u003ePlayer One Astronomy cameras\u003c\/strong\u003e such as the Poseidon and Neptune series to take advantage of their high sensitivity and low read noise performance.\u003c\/p\u003e\n\u003cp\u003eFor wide-field deep-sky imaging the telescope works particularly well with the \u003cstrong\u003ePlayer One Poseidon-C Pro\u003c\/strong\u003e and \u003cstrong\u003ePlayer One Neptune-C II\u003c\/strong\u003e, delivering excellent colour imaging across the full frame.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":44618187473073,"sku":"SQA55","price":795.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sqa55_side_view.webp?v=1758012980"},{"product_id":"svbony-sv555-80mm-triplet-apo","title":"Svbony SV555 APO Telescope","description":"\u003ch2\u003e🔭 Svbony SV555 APO Telescope - Capture the Universe in Stunning Clarity! 🌌\u003c\/h2\u003e\n\u003cp\u003eThis Telescope is a professional-grade APO telescope designed for deep-sky photography enthusiasts. With its advanced \u003cstrong\u003ePetzval lens structure\u003c\/strong\u003e, and provides a \u003cstrong\u003eflat field of view\u003c\/strong\u003e and \u003cstrong\u003eminimized chromatic aberration\u003c\/strong\u003e, ensuring razor-sharp stars across the image. Whether you're a seasoned astro photographer or just starting, this telescope offers the precision and versatility you need for exceptional results.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/SV555_Astrograph_Telescope_Side_Image.png?v=1731309307\" alt=\"Svbony SV555 APO Telescope\"\u003e\u003c\/p\u003e\n\u003ch3\u003e🔍 Key Features of the Svbony SV555 APO Telescope\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePetzval Design\u003c\/strong\u003e: The \u003cem\u003e3-group, 5-element Petzval structure\u003c\/em\u003e delivers high-quality, colour-corrected images, reducing aberrations for crisp and clear star images.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Aperture (F22 to F4.5)\u003c\/strong\u003e: Switch between wide-field views and more detailed shots. The \u003cem\u003egraded adjustment ring\u003c\/em\u003e ensures your settings stay in place, even during long imaging sessions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-Frame Compatibility\u003c\/strong\u003e: Designed to cover a \u003cem\u003e44mm full-frame sensor\u003c\/em\u003e, making it suitable for both DSLR and dedicated astronomy cameras, offering versatility for every astro photographer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Rotate Design\u003c\/strong\u003e: Equipped with a \u003cem\u003elockable 360° rotator\u003c\/em\u003e and a \u003cem\u003erotatable lens tube\u003c\/em\u003e, allowing you to adjust the perfect angle for your shots effortlessly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated EAF Kit Support\u003c\/strong\u003e: Achieve precise focus with the \u003cstrong\u003eElectronic Automatic Focuser (EAF)\u003c\/strong\u003e, ideal for hands-free fine-tuning of focus during long exposures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSturdy Construction\u003c\/strong\u003e: The \u003cem\u003eVixen \u0026amp; Arca-Swiss dovetail plate\u003c\/em\u003e ensures secure mounting to your equatorial mount, while the lightweight yet robust build offers stability during long exposure shots.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM48 \u0026amp; M72 Filter Threads\u003c\/strong\u003e: Use \u003cem\u003eM72 front filter threads\u003c\/em\u003e to add filters for daily photography or \u003cem\u003eM48*0.75 thread\u003c\/em\u003e for astrophotography filters, offering ultimate flexibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/SV555_Astrograph_Telescope_Focus_Rotation_view.png?v=1731309341\" alt=\"Svbony SV555 APO Telescope\"\u003e\u003c\/p\u003e\n\u003ch3\u003e📊 Technical Specifications of the Svbony SV555 APO Telescope\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eObjective Lens\u003c\/th\u003e\n\u003ctd\u003e54mm f\/4.5 APO with ED glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOptical Design\u003c\/th\u003e\n\u003ctd\u003e3-group 5-element Petzval Structure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAperture Range\u003c\/th\u003e\n\u003ctd\u003eF22 to F4.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSensor Coverage\u003c\/th\u003e\n\u003ctd\u003e44mm Full Frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFocus System\u003c\/th\u003e\n\u003ctd\u003eCompatible with EAF for electronic focusing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting System\u003c\/th\u003e\n\u003ctd\u003eVixen \u0026amp; Arca-Swiss Quick Release\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter Threads\u003c\/th\u003e\n\u003ctd\u003eM72 front, M48*0.75 rear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003eApprox. 3kg (lens \u0026amp; mounting)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e✨ Why Choose the Svbony SV555 APO Telescope?\u003c\/h3\u003e\n\u003cp\u003eThe Svbony SV555 APO Telescope is engineered for astrophotographers who demand \u003cem\u003eprecision, clarity, and versatility\u003c\/em\u003e. The Petzval design ensures sharpness across the entire frame, making it ideal for capturing \u003cstrong\u003enebulae, star clusters, galaxies\u003c\/strong\u003e, and even detailed lunar and planetary imaging. With the ability to fine-tune focus using the EAF kit and its \u003cstrong\u003erotatable lens design\u003c\/strong\u003e, this telescope adapts to your needs, whether you're at a dark sky site or your backyard observatory.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/SV555_Astrograph_Telescope_Bracket_and_dovetail_Plate_view.png?v=1731309320\" alt=\"Svbony SV555 APO Telescope\"\u003e\u003c\/p\u003e\n\u003ch3\u003e📦 What’s in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1x Svbony SV555 APO Telescope\u003c\/li\u003e\n\u003cli\u003e1x Vixen \u0026amp; Arca-Swiss Dovetail Plate\u003c\/li\u003e\n\u003cli\u003e1x Handle and Bracket for Stability\u003c\/li\u003e\n\u003cli\u003e1x User Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e🌠 Enhance Your Astrophotography Experience with Svbony SV555 APO Telescope\u003c\/h3\u003e\n\u003cp\u003eWith the , Svbony SV555 APO Telescope you’ll get the perfect balance of performance and portability. From capturing the intricate details of deep-sky objects to exploring the lunar surface, this telescope provides the \u003cstrong\u003eoptical excellence\u003c\/strong\u003e you need to take your astrophotography to the next level. Ready to discover the wonders of the universe? \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/SV555_Astrograph_Telescope_Lens_Side_Image.png?v=1731309309\" alt=\"Svbony SV555 APO Telescope\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eReady to elevate your night sky photography?\u003c\/em\u003e Don’t miss out on the Svbony SV555 APO Telescope.\u003c\/p\u003e\n\u003cp\u003eSvbony SV555 APO Telescope\u003cspan\u003e professional astronomical photography telescope APO is designed for deep-sky photography. Petzval objective lens structure includes a triplet lens and ED offering a clear image without aperture blocking. 44mm full frame has a wide field of view and provides a clearer image. EAF kit and fine adjustment make it convenient to shoot. F22 to F4.5 variable aperture meets different use needs. For photography users, SV555 will be a better choice to use.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\n\u003cspan\u003eTest Report Interferogram for the \u003c\/span\u003eSvbony SV555 APO Telescope\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/SV555_Astrograph_Telescope_Spot_Diagram_Graph_view.png?v=1731309339\" alt=\"Svbony SV555 APO Telescope\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/SV555_Astrograph_Telescope_FOV_MTF_Grap.png?v=1728650848\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/SV555_Astrograph_Telescope_Optical_Path_view.png?v=1731309337\" alt=\"Svbony SV555 APO Telescope\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003eSvbony SV555 APO Telescope \u003cspan style=\"font-size: 1em; font-weight: var(--p-font-weight-regular); font-family: var(--p-font-family-sans); letter-spacing: initial;\"\u003ecamera lens can adjust the aperture from F22 to F4.5; professional astronomical photography lens includes a graded adjustment ring and scale; keeping the parameters the same without changing due to accidental touching; increasing the accuracy of shooting, meeting a variety of use needs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe  \u003c\/span\u003eSvbony SV555 APO Telescope \u003cspan style=\"font-size: 1em; font-weight: var(--p-font-weight-regular); font-family: var(--p-font-family-sans); letter-spacing: initial;\"\u003euses integrated structure and light weight; increasing the ease of use when shooting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSV555 APO astro camera lens is featured with a handle; bracket and dovetail plate; making it more convenient to use the lens when shooting. \u003c\/span\u003e\u003cspan\u003eWith a lockable 360° rotator and rotatable lens tube, the APO telephoto lens is convenient for adjusting and saving the angle. Whether daily shooting or astrophotography, you can find a suitable angle for a better shooting effect.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCompatible with cameras; the M72 front filter thread can be connected to the camera filter for daily photography; the design increases the flexibility and ease of the APO telephoto lens. Dual rotate design; lockable 360° rotator and lens tube help you adjust the angle accurately; astrophotography telescope offers a better photography effect to you.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIncreased image quality;  \u003c\/span\u003eSvbony SV555 APO Telescope \u003cspan style=\"font-size: 1em; font-weight: var(--p-font-weight-regular); font-family: var(--p-font-family-sans); letter-spacing: initial;\"\u003elens consists of a 3-group 5-piece petzval objective lens structure; which includes a set of triplet lens; bringing you a clearer image. Petzval objective lens structure with triplet lens offers a flatter field of view; and improves assembly efficiency and accuracy; you can get an enhanced image quality even on the edge of star point.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSvbony SV555 APO Telescope \u003cspan\u003efeatures an M48x0.75 filter thread to install the 2\" filter; additionally; the V-style \u0026amp; Arca-Swiss quick-release system is compatible; flexible and easy to use; enhancing the efficiency.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\n\u003cspan\u003eSV555 New Upgrade, New Experience\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eWe' ve updated the \u003cstrong\u003esandblasting process from a 320-grit to a 280-grit finish\u003c\/strong\u003e.This gives the new version a more refined, matte texture that not only looks better but also resists fingerprints. You'Il see a clear dlifference in the side-by-side comparison we' re showing here. Next, we've managed to\u003cstrong\u003e reduce the weight of the tube by over 90 grams\u003c\/strong\u003e. This makes the new version \u003cstrong\u003elighter \u003c\/strong\u003eand more \u003cstrong\u003eportable\u003c\/strong\u003e. The third improvement is in the reduced lens hood. The \u003cstrong\u003eouter diameter of the lens hood \u003c\/strong\u003eis\u003cstrong\u003e reduced from 97mm to 93mm \u003c\/strong\u003eand\u003cstrong\u003e the wall thickness from the 3mm to 2.5mm\u003c\/strong\u003e. This makes the hood more compact and lightweight while maintaining its functionality. Finally, we’ve increased the \u003cstrong\u003efocus travel from 2.67mm to 3.22mm\u003c\/strong\u003e. This provides a smoother and more precise focusing experience, especially for astrophotography. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"svbony sv555 artrograph telescope.jpg\" title=\"svbony sv555 artrograph telescope.jpg\" src=\"https:\/\/v3.svbony.com\/UploadedMedia\/image\/20241114\/6386717316224383064745589.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSvbony SV555 professional astronomical photography Astrograph Telescope APO is designed for deep-sky photography. Petzval objective lens structure includes a triplet lens and 2-ED glasses offering a clear image without aperture blocking. 44mm full frame has a wide field of view and provides a clearer image. EAF kit and fine adjustment make it convenient to shoot. F22 to F4.5 variable aperture meets different use needs. For photography users, SV555 will be a better choice to use.  It is going to be an ace travel lens for your journey.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"svbony sv555 artrograph telescope.jpg\" title=\"svbony sv555 artrograph telescope.jpg\" src=\"https:\/\/v3.svbony.com\/UploadedMedia\/image\/20241021\/6386510249477841506783642.jpg\"\u003e\u003c\/p\u003e\n\u003ch2\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/h2\u003e\n\u003ch2\u003e\u003cspan\u003eTest Report Interferogram\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/v3.svbony.com\/UploadedMedia\/image\/20250524\/6388368060921941573989354.webp\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"svbony sv555 artrograph telescope.jpg\" title=\"svbony sv555 artrograph telescope.jpg\" src=\"https:\/\/v3.svbony.com\/UploadedMedia\/image\/20241021\/6386510251659207792553982.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSV555 astrophotography telescope camera lens can adjust the aperture from F22 to F4.5; professional astronomical photography lens includes a graded adjustment ring and scale; keeping the parameters the same without changing due to accidental touching; increasing the accuracy of shooting, meeting a variety of use needs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"svbony sv555 artrograph telescope.jpg\" title=\"svbony sv555 artrograph telescope.jpg\" src=\"https:\/\/v3.svbony.com\/UploadedMedia\/image\/20241021\/6386510253006331907116268.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe SV555 ED APO astro camera lens uses integrated structure and light weight; increasing the ease of use when shooting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"svbony sv555 astrograph telescope apo.jpg\" title=\"svbony sv555 astrograph telescope apo.jpg\" src=\"https:\/\/v3.svbony.com\/UploadedMedia\/image\/20241021\/6386510266953046968828259.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSV555 APO astro camera lens is featured with a handle; bracker; and dovetail plate; making it more convenient to use the lens when shooting. \u003c\/span\u003e\u003cspan\u003eWith a lockable 360° rotator and rotatable lens tube, the APO telephoto lens is convenient for adjusting and saving the angle. Whether daily shooting or astrophotography, you can find a suitable angle for a better shooting effect.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCompatible with cameras; the M72 front filter thread can be connected to the camera filter for daily photography; the design increases the flexibility and ease of the APO telephoto lens. Dual rotate design; lockable 360° rotator and lens tube help you adjust the angle accurately; astrophotography telescope offers a better photography effect to you.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"svbony sv555 astrograph telescope apo.jpg\" title=\"svbony sv555 astrograph telescope apo.jpg\" src=\"https:\/\/v3.svbony.com\/UploadedMedia\/image\/20241007\/6386390716980020453879792.jpg\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIncreased image quality; SV555 APO astro camera lens consists of a 3-group 5-piece petzval objective lens structure; which includes a set of triplet lens; bringing you a clearer image. Petzval objective lens structure with triplet lens offers a flatter field of view. What' more, the astrograph lens has featured with ultra-wide field of view for larger targets, and pin-point stars edge to edge with almost 0 chromatic aberration.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"svbony sv555 astrograph telescope apo.jpg\" title=\"svbony sv555 astrograph telescope apo.jpg\" src=\"https:\/\/v3.svbony.com\/UploadedMedia\/image\/20241007\/6386390717009110653836612.jpg\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"svbony sv555 astrograph telescope apo.jpg\" title=\"svbony sv555 astrograph telescope apo.jpg\" src=\"https:\/\/v3.svbony.com\/UploadedMedia\/image\/20241007\/6386390717038213782832883.jpg\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"svbony sv555 astrograph telescope apo.jpg\" title=\"svbony sv555 astrograph telescope apo.jpg\" src=\"https:\/\/v3.svbony.com\/UploadedMedia\/image\/20241007\/6386390717067157214060536.jpg\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"svbony sv555 astrograph telescope apo.jpg\" title=\"svbony sv555 astrograph telescope apo.jpg\" src=\"https:\/\/v3.svbony.com\/UploadedMedia\/image\/20241007\/6386390717096730747469774.jpg\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"svbony sv555 astrograph telescope apo.jpg\" title=\"svbony sv555 astrograph telescope apo.jpg\" src=\"https:\/\/v3.svbony.com\/UploadedMedia\/image\/20241021\/6386510291033527916158863.jpg\"\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eSV555 Photography Portfolio\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"SV555 telescope\" title=\"SV555 telescope\" src=\"https:\/\/v3.svbony.com\/UploadedMedia\/image\/20250625\/6388644355734499051095741.jpg\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"SV555 telescope\" title=\"SV555 telescope\" src=\"https:\/\/v3.svbony.com\/UploadedMedia\/image\/20250625\/6388644576203953814402504.jpg\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/SV555_Astrograph_Telescope_Dovetail_connected_to_mount_view.png?v=1728650758\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Svbony","offers":[{"title":"Default Title","offer_id":54834301895032,"sku":"F9395A","price":429.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Svbony_SV555.jpg?v=1766409687"},{"product_id":"askar-sqa85-85mm-f-4-8-quintuplet-astrograph","title":"Askar SQA85 85mm f\/4.8 Quintuplet Astrograph | Dark Clear Skies","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch2\u003eAskar SQA85 85mm f\/4.8 Quintuplet Astrograph Refractor Telescope\u003c\/h2\u003e\n\u003cp\u003eThe Askar SQA85 85mm f\/4.8 Quintuplet Astrograph is a high-performance 85mm quintuplet Petzval APO refractor telescope, designed for serious astrophotographers seeking exceptional clarity and detail. With a fast focal ratio of f\/4.8, this telescope delivers sharp, high-contrast images, even across a full-frame sensor, making it ideal for capturing breath taking views of deep-sky objects.\u003c\/p\u003e\n\u003ch3\u003eAskar SQA85 85mm f\/4.8 Quintuplet Astrograph Outstanding Optics\u003c\/h3\u003e\n\u003cp\u003eThe Askar SQA85 85mm f\/4.8 Quintuplet Astrograph features a quintuplet lens system, including two SD (Super Low Dispersion) glass elements, which significantly reduces chromatic aberration and enhances image quality. Its precision-crafted optics ensure edge-to-edge sharpness and bring out incredible detail in celestial objects.\u003c\/p\u003e\n\u003ch3\u003eAskar SQA85 85mm f\/4.8 Quintuplet Astrograph Compact and Lightweight Design\u003c\/h3\u003e\n\u003cp\u003eWith a total length of just 403mm when the dew shield is contracted, and weighing only 3.64kg, the SQA85 is highly portable yet robust. The lightweight design makes it easy to transport and set up, while the compact structure ensures it can integrate smoothly with most astrophotography setups.\u003c\/p\u003e\n\u003ch3\u003eAskar SQA85 85mm f\/4.8 Quintuplet Astrograph\u003c\/h3\u003e\n\u003ch3\u003eVersatile Connection Options\u003c\/h3\u003e\n\u003cp\u003eThe Askar SQA85 85mm f\/4.8 Quintuplet Astrograph offers adaptable rear-end threads, supporting M48, M54, and M68 adapters, with a connection distance range of 40-70mm (recommended length: 55mm). This flexibility makes it compatible with a wide range of cameras and accessories, giving you the freedom to expand your astrophotography options.\u003c\/p\u003e\n\u003ch3\u003eStandard Package Includes\u003c\/h3\u003e\n\u003cp\u003eEvery Askar SQA85 85mm f\/4.8 Quintuplet Astrograph comes with an OTA (Optical Tube Assembly) and a durable Oxford cloth carrying case, ensuring your telescope is protected during transport and storage. An optional electronic focuser is also available for those who seek enhanced focusing precision.\u003c\/p\u003e\n\u003ch3\u003eExplore the Universe\u003c\/h3\u003e\n\u003cp\u003eUnlock the wonders of the cosmos with the Askar SQA85 85mm f\/4.8 Quintuplet Astrograph. Whether you’re capturing detailed images of nebulae, galaxies, or star clusters, this APO refractor delivers exceptional performance and versatility for every astrophotography adventure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"saf-detail-0\" class=\"cbox-15 p_loopItem\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"e_richText-17 s_title clearfix\"\u003e\n\u003cdiv id=\"ce_detail-292553\" class=\"ce_detail\"\u003e\n\u003cdiv id=\"ie_grid-1721027372230\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv id=\"content_ie-1721027372230-0\" class=\"e_box e_box-000 d_gridCell_0 p_gridCell\"\u003e\n\u003cdiv id=\"ie_fimg-1721027372235\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/a30c51ab-d255-4fe3-9a5e-2c0a3ed3aeb9.jpg\" 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src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/efb693eb-bb58-4484-9c5a-91c34be13c8f.jpg\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1721027372325\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg width=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/f580ed7c-3b7b-485c-89cd-5d9f5d71a633.jpg\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1721027372330\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg width=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/7a0a57fa-25fa-46c6-be0f-565fd2515873.jpg\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1721027372335\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg width=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/dbf9e1f5-564c-4f61-b816-f8df234495a1.jpg\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/58475961-2259-4c09-b67c-b75d08f64724.jpg\" id=\"1838458982399692800\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"saf-detail-1\" class=\"cbox-15 p_loopItem\"\u003e\n\u003ch3 class=\"e_h3-18 s_summary\"\u003eAskar SQA85 85mm f\/4.8 Quintuplet Astrograph Specifications\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-17 s_title clearfix\"\u003e\n\u003ctable width=\"84.20%\" cellspacing=\"0\" align=\"center\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eAperture size\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e85mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e408mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal ratio\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ef\/4.8\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eObjective lens\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eQuintuplet petzval APO（including two pieces of SD glass）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eTotal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e403mm(when the dew shield is contracted)\u003cbr\u003e439mm(when the dew shield is stretched)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFormat specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eFull-frame\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eOTA weight\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e3.64kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eGross weight（including tube ring and dovetail plate）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e4.62kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eRear-end thread type\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eM48\/M54\/M68 adapters\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eRear-end connection distance\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eSupport 40-70mm range (Recommended connection length is 55mm)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eStandard package items\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ea SQA85 OTA, an Oxford cloth case\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"84.20%\" cellspacing=\"0\" align=\"center\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Size Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/75f320c8-8252-42de-96b9-925ae12a073f.jpg\" id=\"1818486278647209984\"\u003e\u003c\/p\u003e\n\u003ctable width=\"84.20%\" cellspacing=\"0\" align=\"center\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eThe Locking Screw Position Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/f0bf29a2-4415-4a51-a886-e5286b2caf1e.jpg\" id=\"1818488667286908928\"\u003e\u003c\/p\u003e\n\u003ctable width=\"84.20%\" cellspacing=\"0\" align=\"center\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eSQA85 AFkit Electronic Focuser Assembly Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/41845f58-0a1b-4c7e-a55a-304511b3d947.jpg\" id=\"1818489256431083520\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/8d4c0ad6-46d1-4876-b68b-38c7b92c4baf.jpg\" id=\"1818488815884509184\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"saf-detail-2\" class=\"cbox-15 p_loopItem\"\u003e\n\u003ch3 class=\"e_h3-18 s_summary\"\u003eVideo\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-17 s_title clearfix\"\u003e\n\u003cdiv class=\"video-box\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"saf-detail-3\" class=\"cbox-15 p_loopItem\"\u003e\n\u003ch3 class=\"e_h3-18 s_summary\"\u003eImages\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-17 s_title clearfix response-transition\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460166674\/cms\/image\/d81a6fec-1408-4fa3-9cf1-6276bbeaba69.jpg\" id=\"1810207183107108864\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/4537e085-bc41-4299-b134-e7a5e43a7500.jpg\" id=\"1819181293616832512\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMr.ZhuLiQun  |  Veil Nebula  |  ASKAR SQA85 + ZWO ASI6200MM\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460166674\/cms\/image\/b267547a-b465-403b-adcd-dddaa94d0558.jpg\" id=\"1813016410414493696\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460166674\/cms\/image\/4e888085-9899-49cc-8041-9c0aba996880.png\" id=\"1813016630833209344\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003esandwall  |  NGC6590  |  ASKAR SQA85 + ZWO ASI 2600MC Pro\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460166674\/cms\/image\/811c9820-8779-4c9e-ac3d-bec58f4ddb10.jpg\" id=\"1834416059218755584\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460166674\/cms\/image\/d9bbd52f-f0ce-40e9-b0e4-622720579fa7.jpg\" id=\"1834416083822923776\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003esandwall  |  M31  |  ASKAR SQA85 + ZWO ASI 2600MC Pro\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Refractor Telescope","offers":[{"title":"Default Title","offer_id":53627199029624,"sku":"askar_sqa85","price":2395.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sqa85_side_view.webp?v=1758013052"},{"product_id":"askar-v-modular-apo-telescope-v60-v80","title":"Askar V Modular APO Telescope (V60 \u0026 V80) – 270–600mm Dual-Mode Astrograph","description":"\u003ch2\u003eFlexible Astrograph: One Telescope, Six Setups\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/V-askar-v-modular-apo-telescope-with-2-interchangeable-lenses-with-60mm-and-80mm-apertures-and-6-possible-focal-lengths-1-1000x1000w.webp?v=1733336076\" alt=\"Askar V Modular Apochromatic Refractor | Dual-Mode Astrograph – Dark Clear Skies UK\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eAskar V\u003c\/strong\u003e is a modular apochromatic refractor designed for imagers who want maximum versatility without changing telescope. Swap between the \u003cstrong\u003eV60 (60 mm, 360 mm f\/6)\u003c\/strong\u003e and \u003cstrong\u003eV80 (80 mm, 500 mm f\/6.25)\u003c\/strong\u003e objective lenses, then choose the \u003cstrong\u003eReducer\u003c\/strong\u003e, \u003cstrong\u003eFlattener\u003c\/strong\u003e or \u003cstrong\u003eExtender\u003c\/strong\u003e to cover focal lengths from \u003cstrong\u003e270 mm to 600 mm\u003c\/strong\u003e. Perfect for wide-field nebulae, large galaxies and tighter framing of clusters.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/V-askar-v-modular-apo-telescope-with-2-interchangeable-lenses-with-60mm-and-80mm-apertures-and-6-possible-focal-lengths-f-1000x1000w.webp?v=1733336076\" alt=\"Askar V Modular Apochromatic Refractor | Dual-Mode Astrograph – Dark Clear Skies UK\"\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy Choose the Askar V?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSix focal length options:\u003c\/strong\u003e 270 \/ 360 \/ 384 \/ 446 \/ 495 \/ 600 mm from a single platform.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue APO triplet optics:\u003c\/strong\u003e Each objective uses two ED elements for excellent colour correction and tight star profiles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImaging-ready connections:\u003c\/strong\u003e M54×0.75 and M48×0.75 rear threads (built-in 2″ filter thread) and a standard \u003cstrong\u003e55 mm backfocus\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotator \u0026amp; visual adapters included:\u003c\/strong\u003e New scaled 360° rotator, finder base, 1.25″ \u0026amp; 2″ adapters for easy framing and visual observing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePortable build:\u003c\/strong\u003e Approx. \u003cstrong\u003e2.8 kg\u003c\/strong\u003e (V60) and \u003cstrong\u003e3.4 kg\u003c\/strong\u003e (V80). Ideal for travel rigs and quick setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eQuick Configuration Guide\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eSet the accessory’s scale to match the lens (60 or 80). Maintain 55 mm backfocus from the M48 adapter.\u003c\/em\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eAperture\u003c\/th\u003e\n\u003cth\u003eAccessory\u003c\/th\u003e\n\u003cth\u003eFocal length\u003c\/th\u003e\n\u003cth\u003eF-ratio\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e60 mm (V60)\u003c\/td\u003e\n\u003ctd\u003eReducer\u003c\/td\u003e\n\u003ctd\u003e270 mm\u003c\/td\u003e\n\u003ctd\u003ef\/4.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e60 mm (V60)\u003c\/td\u003e\n\u003ctd\u003eFlattener\u003c\/td\u003e\n\u003ctd\u003e360 mm\u003c\/td\u003e\n\u003ctd\u003ef\/6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e60 mm (V60)\u003c\/td\u003e\n\u003ctd\u003eExtender\u003c\/td\u003e\n\u003ctd\u003e446 mm\u003c\/td\u003e\n\u003ctd\u003ef\/7.43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e80 mm (V80)\u003c\/td\u003e\n\u003ctd\u003eReducer\u003c\/td\u003e\n\u003ctd\u003e384 mm\u003c\/td\u003e\n\u003ctd\u003ef\/4.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e80 mm (V80)\u003c\/td\u003e\n\u003ctd\u003eFlattener\u003c\/td\u003e\n\u003ctd\u003e495 mm\u003c\/td\u003e\n\u003ctd\u003ef\/6.18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e80 mm (V80)\u003c\/td\u003e\n\u003ctd\u003eExtender\u003c\/td\u003e\n\u003ctd\u003e600 mm\u003c\/td\u003e\n\u003ctd\u003ef\/7.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/V-askar-v-modular-apo-telescope-with-2-interchangeable-lenses-with-60mm-and-80mm-apertures-and-6-possible-focal-lengths-5-1000x1000w.webp?v=1733336076\" alt=\"Askar V Modular Apochromatic Refractor | Dual-Mode Astrograph – Dark Clear Skies UK\"\u003e\u003c\/h3\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ch4\u003eV60 OTA\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eAperture: \u003cstrong\u003e60 mm\u003c\/strong\u003e | Focal length: \u003cstrong\u003e360 mm\u003c\/strong\u003e | F-ratio: \u003cstrong\u003ef\/6\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOptics: \u003cstrong\u003eTriplet air-spaced APO\u003c\/strong\u003e (two ED elements)\u003c\/li\u003e\n\u003cli\u003eBackfocus reference: \u003cstrong\u003e150 mm\u003c\/strong\u003e from 2″ adapter (focuser retracted)\u003c\/li\u003e\n\u003cli\u003eLength (no accessories): \u003cstrong\u003e318.5 mm\u003c\/strong\u003e | Weight (with rings \u0026amp; dovetail): \u003cstrong\u003e2.8 kg\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eRear adapters: \u003cstrong\u003e2″\u003c\/strong\u003e and \u003cstrong\u003e1.25″\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eV80 OTA\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eAperture: \u003cstrong\u003e80 mm\u003c\/strong\u003e | Focal length: \u003cstrong\u003e500 mm\u003c\/strong\u003e | F-ratio: \u003cstrong\u003ef\/6.25\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOptics: \u003cstrong\u003eTriplet air-spaced APO\u003c\/strong\u003e (two ED elements)\u003c\/li\u003e\n\u003cli\u003eBackfocus reference: \u003cstrong\u003e139.7 mm\u003c\/strong\u003e from 2″ adapter (focuser retracted)\u003c\/li\u003e\n\u003cli\u003eLength (no accessories): \u003cstrong\u003e411 mm\u003c\/strong\u003e | Weight (with rings \u0026amp; dovetail): \u003cstrong\u003e3.4 kg\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eRear adapters: \u003cstrong\u003e2″\u003c\/strong\u003e and \u003cstrong\u003e1.25″\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eAccessories\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eReducer: \u003cstrong\u003e0.44 kg\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFlattener: \u003cstrong\u003e0.48 kg\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eExtender: \u003cstrong\u003e0.46 kg\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eRear threads: \u003cstrong\u003eM54×0.75\u003c\/strong\u003e, \u003cstrong\u003eM48×0.75\u003c\/strong\u003e (built-in 2″ filter thread)\u003c\/li\u003e\n\u003cli\u003eStandard imaging backfocus: \u003cstrong\u003e55 mm\u003c\/strong\u003e (from the M48 adapter)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRotate each accessory to the \u003cstrong\u003e60\u003c\/strong\u003e or \u003cstrong\u003e80\u003c\/strong\u003e scale to match the objective in use.\u003c\/li\u003e\n\u003cli\u003eMaintain \u003cstrong\u003e55 mm\u003c\/strong\u003e backfocus for imaging trains.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/V-askar-v-modular-apo-telescope-with-2-interchangeable-lenses-with-60mm-and-80mm-apertures-and-6-possible-focal-lengths-3-1000x1000w.webp?v=1733336076\" alt=\"Askar V Modular Apochromatic Refractor | Dual-Mode Astrograph – Dark Clear Skies UK\"\u003e\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs the Askar V suitable for beginners?\u003c\/summary\u003e\n\u003cp\u003eYes. Start wide at 270–360 mm for forgiving tracking and easy framing, then move up to longer focal lengths as you progress.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need extra spacers with the reducer or flattener?\u003c\/summary\u003e\n\u003cp\u003eNo special spacers are required beyond achieving the standard \u003cstrong\u003e55 mm\u003c\/strong\u003e backfocus from the M48 adapter.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhich cameras can I use?\u003c\/summary\u003e\n\u003cp\u003eMost dedicated astronomy cameras and DSLR\/mirrorless bodies can connect via M48\/M54. Sensor coverage depends on configuration and camera; many users shoot APS-C comfortably.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use it visually?\u003c\/summary\u003e\n\u003cp\u003eYes. 1.25″ and 2″ adapters are included, and the 360° rotator helps with comfortable viewing angles.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":54837564277112,"sku":"ASKR-V","price":1695.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/V-askar-v-modular-apo-telescope-with-2-interchangeable-lenses-with-60mm-and-80mm-apertures-and-6-possible-focal-lengths-1-1000x1000w.webp?v=1782294231"},{"product_id":"redcat-51-v3-wifd","title":"Redcat 51 V3 WIFD","description":"\u003ch1\u003eWilliam Optics Redcat 51 V3: Your Gateway to the Cosmos\u003c\/h1\u003e\n\u003cp\u003eEmbark on an unparalleled astronomical journey with the \u003cstrong\u003eWilliam Optics Redcat 51 V3 WIFD\u003c\/strong\u003e. This compact apochromatic refractor telescope merges cutting-edge technology with user-friendly features, making it an ideal choice for both budding astronomers and seasoned astrophotographers. With its sleek, robust design and innovative optical system, the Redcat 51 V3 WIFD delivers crystal-clear, vibrant images, capturing the splendour of the cosmos with ease and precision.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/williamoptics.com\/cdn\/shop\/files\/Redcat-51-perspective-1.jpg?v=1708412637\u0026amp;width=2400\" alt=\"Cat 51 WIFD\"\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features and Benefits\u003c\/h2\u003e\n\u003ch3\u003e1. Exceptional Optical Quality\u003c\/h3\u003e\n\u003cp\u003eThe Redcat 51 V3 features an innovative \u003cstrong\u003ePetzval-like design\u003c\/strong\u003e with a fast \u003cstrong\u003ef\/4.9 focal ratio\u003c\/strong\u003e. This design ensures sharp, detailed views across a wide field of view, making it perfect for both visual stargazing and astrophotography. Enjoy hassle-free imaging with reduced concerns about back focus adjustments.\u003c\/p\u003e\n\u003ch3\u003e2. Redcat 51 V3 WIFD Durability Meets Portability\u003c\/h3\u003e\n\u003cp\u003eConstructed with high-quality \u003cstrong\u003eCNC-machined aluminium\u003c\/strong\u003e, the Redcat 51 V3 WIFD offers exceptional durability while maintaining a lightweight and portable design. Whether you're observing from your backyard or a remote dark-sky location, this telescope is built to accompany you on all your adventures.\u003c\/p\u003e\n\u003ch3\u003e3. Advanced WIFD Focusing System\u003c\/h3\u003e\n\u003cp\u003eThe state-of-the-art \u003cstrong\u003eWIFD (William Optics Internal Focusing Design)\u003c\/strong\u003e system allows for precise and smooth focusing. This innovative mechanism significantly enhances image clarity, whether you are capturing celestial objects photographically or enjoying them visually.\u003c\/p\u003e\n\u003ch3\u003e4. Versatile Camera Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe Redcat 51 V3 WIFD is designed to connect seamlessly with a wide range of cameras and astrophotography accessories. Its \u003cstrong\u003eM48 thread\u003c\/strong\u003e adapter ensures compatibility with DSLR, mirrorless, and dedicated astrophotography cameras, making it a versatile tool for capturing the universe.\u003c\/p\u003e\n\u003ch3\u003e5. Redcat 51 V3 WIFD Wide Field of View\u003c\/h3\u003e\n\u003cp\u003eWith a 250mm focal length and a full-frame image circle, this telescope excels at wide-field astrophotography, ideal for capturing stunning nebulae, star clusters, and expansive celestial landscapes.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAperture:\u003c\/strong\u003e 51mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal Length:\u003c\/strong\u003e 250mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal Ratio:\u003c\/strong\u003e f\/4.9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptical Design:\u003c\/strong\u003e Petzval-like design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocus System:\u003c\/strong\u003e WIFD (William Optics Internal Focusing Design)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera Adapter Thread:\u003c\/strong\u003e M48\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e CNC-machined aluminium\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Choose the William Optics Redcat 51 V3?\u003c\/h2\u003e\n\u003cp\u003eWhether you are a beginner looking to delve into astrophotography or an experienced astronomer seeking a portable yet powerful refractor, the William Optics Redcat 51 V3 WIFD is designed to meet your needs. Its compact size, combined with cutting-edge optical performance, makes it an excellent choice for exploring and capturing the wonders of the night sky.\u003c\/p\u003e\n\u003ch3\u003eRedcat 51 V3 WIFD - Perfect for:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWide-field astrophotography\u003c\/li\u003e\n\u003cli\u003eVisual observation\u003c\/li\u003e\n\u003cli\u003eTraveling astronomers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhat's Included?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWilliam Optics Redcat 51 V3 WIFD Telescope\u003c\/li\u003e\n\u003cli\u003eM48 Camera Adapter\u003c\/li\u003e\n\u003cli\u003eSoft Carrying Case\u003c\/li\u003e\n\u003cli\u003eUser Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eExperience the Universe Like Never Before.\u003c\/h2\u003e\n\u003cp\u003eThe \u003cb\u003eRedcat 51 V3 WIFD\u003c\/b\u003e opens up a world of possibilities for astronomy enthusiasts. Its innovative design and superior optical performance make it a standout choice for anyone looking to capture the beauty of the cosmos. Whether you're imaging distant galaxies or admiring star clusters, the Redcat 51 V3 delivers breath taking results every time.\u003c\/p\u003e\n\u003ch3\u003eOrder Your William Optics Redcat 51 V3 Today\u003c\/h3\u003e\n\u003cp\u003eReady to elevate your astronomical pursuits? The William Optics Redcat 51 V3 is more than just a telescope—it's your passport to the stars.\u003c\/p\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":54852755521912,"sku":"","price":849.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Redcat-51-front-1.webp?v=1734351501"},{"product_id":"askar-sqa106-f-4-8-quintuplet-petzval-apo","title":"Askar SQA106 f\/4.8 Quintuplet Petzval APO Telescope | Dark Clear Skies","description":"\u003cdiv class=\"cbox-15 p_loopItem\" id=\"saf-detail-0\"\u003e\n\u003cstrong\u003eAskar SQA106 – Quintuplet Petzval APO Astrograph\u003c\/strong\u003e\n\u003cp\u003eThe Askar SQA106 f\/4.8 quintuplet Petzval APO is a premium quintuplet Petzval APO astrograph designed for astrophotographers who demand exceptional optical performance. With a 106mm aperture and a fast f\/4.8 focal ratio, the Askar SQA106 f\/4.8 quintuplet Petzval APO delivers sharp, high-contrast images with minimal chromatic aberration, thanks to its advanced optical design incorporating two SD glass elements.\u003c\/p\u003e\n\u003cp\u003eThis high-precision refractor is optimized for both full-frame (44mm) and medium-format (55mm) imaging, ensuring an expansive field of view with excellent edge-to-edge performance. The \u003cstrong\u003ePetzval design\u003c\/strong\u003e means no additional field flattener is required, making it an ideal plug-and-play solution for astrophotography.\u003c\/p\u003e\n\u003ch2\u003e\n\u003cb\u003eAskar SQA106 f\/4.8 quintuplet Petzval APO \u003c\/b\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium Optical Design\u003c\/strong\u003e – A five-element Petzval APO configuration minimizes aberrations and provides excellent colour correction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge Imaging Circle\u003c\/strong\u003e – Natively supports full-frame sensors (44mm), with the ability to upgrade to medium-format (55mm) for even larger coverage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast and Wide-Field\u003c\/strong\u003e – A focal length of \u003cstrong\u003e509mm\u003c\/strong\u003e and an \u003cstrong\u003ef\/4.8\u003c\/strong\u003e focal ratio make it perfect for capturing deep-sky objects in stunning detail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Connectivity\u003c\/strong\u003e – Features M48, M54, and M68 adapters for seamless integration with various imaging setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Focusing\u003c\/strong\u003e – The optional \u003cstrong\u003eelectronic focuser\u003c\/strong\u003e enhances accuracy for long-exposure imaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact and Portable\u003c\/strong\u003e – The telescope measures \u003cstrong\u003e516mm\u003c\/strong\u003e when retracted and \u003cstrong\u003e586mm\u003c\/strong\u003e when fully extended, making it convenient for transport.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid Build Quality\u003c\/strong\u003e – Weighing \u003cstrong\u003e5.82kg (OTA only)\u003c\/strong\u003e and \u003cstrong\u003e8.12kg\u003c\/strong\u003e with accessories, the SQA106 is engineered for stability and durability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n\u003cb\u003eAskar SQA106 f\/4.8 quintuplet Petzval APO \u003c\/b\u003e\u003cstrong\u003ePerfect for Deep-Sky Astrophotography\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp\u003eWhether capturing wide-field views of the \u003cstrong\u003eAndromeda Galaxy (M31), nebulae, or intricate star clusters\u003c\/strong\u003e, the \u003cstrong\u003eAskar SQA106\u003c\/strong\u003e ensures stunning image quality with excellent contrast and pinpoint star sharpness across the entire frame.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWhat’s Included in the Standard Package?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cb\u003eAskar SQA106 f\/4.8 quintuplet Petzval APO\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOxford Cloth Carry Case\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor astro photographers seeking a powerful, high-performance refractor with premium optics and seamless imaging compatibility, the  is a top-tier Askar SQA106 f\/4.8 quintuplet Petzval APO choice.\u003c\/p\u003e\n\u003cdiv class=\"e_richText-17 s_title clearfix\"\u003e\n\u003cdiv class=\"ce_detail\" id=\"ce_detail-294504\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1729650104700\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell\" id=\"content_ie-1729650104700-0\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1729650104705\"\u003e\n\u003cdiv\u003e\u003cimg id=\"1853318784626143232\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/2c4023a2-fb5e-4768-975b-8411ced3c4ac.jpg\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1729650104710\"\u003e\n\u003cdiv\u003e\u003cimg id=\"1853318854417068032\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/4ef6aeb5-b815-496a-8d00-f1eaddbbace0.jpg\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1729650104740\"\u003e\n\u003cdiv\u003e\u003cimg height=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/393c43a6-2a4f-488d-a042-79963ff52c1c.jpg\" width=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1730102823747\"\u003e\n\u003cdiv\u003e\u003cimg id=\"1853683291184459776\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/a5ec3c3c-0291-4d96-95c6-f2d830282128.gif\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1729650104760\"\u003e\n\u003cdiv\u003e\u003cimg id=\"1869195685988806656\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/aa0020c5-e1a5-4acb-b550-b453efb05173.jpg\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1729650104765\"\u003e\n\u003cdiv\u003e\u003cimg id=\"1869195768688955392\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/b13b317c-0986-43bd-9718-baa32f2b02a8.jpg\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1729650104770\"\u003e\n\u003cdiv\u003e\u003cimg height=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/4690120c-cfd6-462f-9f77-723abece10af.jpg\" width=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1729650104775\"\u003e\n\u003cdiv\u003e\u003cimg id=\"1853634172480819200\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/3d169803-b7e2-49ff-bd94-8e872185505d.gif\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1730102893971\"\u003e\n\u003cdiv\u003e\u003cimg height=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/c5a09177-5d99-4309-a6fd-8086e41b6ff8.jpg\" width=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1730102978860\"\u003e\n\u003cdiv\u003e\u003cimg id=\"1856859904509816832\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/9470ea7b-103d-4a43-8e73-05499ced4b54.jpg\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1729650104780\"\u003e\n\u003cdiv\u003e\u003cimg height=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/6597313d-716c-4088-8cf6-7ed7c0dd2b8a.jpg\" width=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1729650104785\"\u003e\n\u003cdiv\u003e\u003cimg id=\"1851079519088832512\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/5aa05978-041f-4bb4-8a4c-3fc542a35efb.jpg\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1729650104790\"\u003e\n\u003cdiv\u003e\u003cimg id=\"1853320545630588928\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/edef5422-701b-4864-bd1e-e4855c2f28f6.jpg\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1729650104795\"\u003e\n\u003cdiv\u003e\u003cimg id=\"1851067306658643968\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/e4e0891b-f6f3-477a-b5e9-31d91cb8b9ca.jpg\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1729650104800\"\u003e\n\u003cdiv\u003e\u003cimg height=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/1b1a6002-4b02-424b-9f90-14ab3a49f2ec.jpg\" width=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1729650104805\"\u003e\n\u003cdiv\u003e\u003cimg id=\"1879816727680671744\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/343b6966-51dd-45a0-96b9-5ed74cb90c36.jpg\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1729650104810\"\u003e\n\u003cdiv\u003e\u003cimg id=\"1853638337604300800\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/6be33401-75e1-494d-8137-db21b73c5492.jpg\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-15 p_loopItem\" id=\"saf-detail-1\"\u003e\n\u003ch3 class=\"e_h3-18 s_summary\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-17 s_title clearfix\"\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" width=\"84.20%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eAperture size\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e106mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e509mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal ratio\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ef\/4.8\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eObjective lens\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eQuintuplet petzval APO（including two pieces of SD glass）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eTotal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e516mm(when the dew shield is contracted)\u003cbr\u003e586mm(when the dew shield is stretched)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFormat specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003efull frame（44mm），upgrade to the medium format(55mm)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eOTA weight\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e5.82kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eGross weight（including tube ring and dovetail plate）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e8.12kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eRear-end thread type\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eM48\/M54\/M68 adapters\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eRear-end connection distance\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eSupport 48-78mm range (Recommended connection length is 55mm)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eStandard package items\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ea SQA106 OTA, an Oxford cloth case\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" width=\"84.20%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Size Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cimg id=\"1853320709756760064\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/6f41cf15-d4fc-4352-bb42-cc54e225d91f.jpg\"\u003e\u003c\/p\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" width=\"84.20%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eThe Locking Screw Position Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cimg id=\"1850706039294349312\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/a7f84fb1-47fa-4745-9723-62d65889d53f.jpg\"\u003e\u003c\/p\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" width=\"84.20%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cspan style=\"background-color: transparent;\"\u003e\u003cb\u003eAskar SQA106 f\/4.8 quintuplet Petzval APO\u003c\/b\u003e\u003c\/span\u003e\u003cstrong\u003e Electronic Focuser Assembly Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cimg id=\"1894274250468974592\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/cbd2a8df-2ff8-40f3-90d7-fe430938f837.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg id=\"1850706520137748480\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/c04f66fc-ed7a-4d91-b63d-6f1722273494.jpg\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-15 p_loopItem\" id=\"saf-detail-2\"\u003e\n\u003ch3 class=\"e_h3-18 s_summary\"\u003eVideo\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-17 s_title clearfix\"\u003e\n\u003cdiv class=\"video-box\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-15 p_loopItem\" id=\"saf-detail-3\"\u003e\n\u003ch3 class=\"e_h3-18 s_summary\"\u003eAskar SQA106 f\/4.8 quintuplet Petzval APO\u003c\/h3\u003e\n\u003ch3 class=\"e_h3-18 s_summary\"\u003eImages\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-17 s_title clearfix response-transition\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cimg id=\"1848959008907894784\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460166674\/cms\/image\/0735a5db-91d6-47dc-a97f-9b4a3cd61137.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003eAskar SQA106 f\/4.8 quintuplet Petzval APO\u003c\/p\u003e\n\u003cp\u003e\u003cimg id=\"1850815782858489856\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/51c56665-562a-4e84-8987-c6d73fa1a365.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMr.TianXingZhe  |  ic5146  |  ASKAR SQA106 + ZWO ASI2600MC\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg id=\"1848959003311529984\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460166674\/cms\/image\/78f6e0e6-1b70-4ce0-bd8a-bbb0575d22ef.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg id=\"1850815882312605696\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/f791735d-fe92-4785-bf2f-8c4ec911bf09.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDrew Evans  |  M31 Andromeda Galaxy  |  ASKAR SQA106 + 2400mc Pro full frame OSC\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":54952409203064,"sku":"SQA106","price":3395.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Askar_SQA_106_4.png?v=1758013090"},{"product_id":"askar-sqa70","title":"Askar SQA70 70mm f\/4.8 Quintuplet Astrograph | Dark Clear Skies","description":"\u003c!-- Askar SQA70 – Product Description (Shopify HTML) --\u003e\n\u003cdiv class=\"dcs-product space-y-6\"\u003e\n\u003ch1\u003eAskar SQA70 – Compact Quintuplet Petzval Astrograph\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eAskar SQA70\u003c\/strong\u003e is a fast, wide-field astrograph designed for crisp, flat images across today’s large sensors. Its \u003cstrong\u003equintuplet Petzval\u003c\/strong\u003e optical design (with ED glass) delivers \u003cem\u003etight, colour-pure stars\u003c\/em\u003e to the corners—no separate field flattener required. Lightweight, travel-friendly, and purpose-built for deep-sky imaging.\u003c\/p\u003e\n\u003ch3\u003eWhy astrophotographers love it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast \u0026amp; wide:\u003c\/strong\u003e ~336 mm focal length at around \u003cstrong\u003ef\/4.8\u003c\/strong\u003e for low-noise, wide-field captures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue flat field:\u003c\/strong\u003e Petzval design keeps stars sharp to the edge, ideal for APS-C and \u003cstrong\u003efull-frame\u003c\/strong\u003e sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent colour control:\u003c\/strong\u003e ED elements reduce chromatic aberration for clean, high-contrast data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePortable build:\u003c\/strong\u003e Compact tube with retractable dew shield; easy to mount and balance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImaging-ready rear end:\u003c\/strong\u003e Robust focuser and common adapter threads for straightforward camera hookup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat it’s great for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLarge nebulae, Milky Way star fields, dark-nebula complexes\u003c\/li\u003e\n\u003cli\u003eWide mosaics and fast survey projects\u003c\/li\u003e\n\u003cli\u003eTravel rigs where size, speed, and field flatness matter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical summary\u003c\/h3\u003e\n\u003ctable role=\"table\" style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eOptical design\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eQuintuplet Petzval (ED glass, native flat field)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eAperture\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003e70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eFocal length \/ Ratio\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003e≈ 336 mm  |  f\/4.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eImage circle\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eFull-frame compatible (flat, corrected field)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eFocuser\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003ePrecision rack-and-pinion, dual-speed (imaging grade)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eTube length\u003c\/th\u003e\n\u003ctd\u003e \n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-0\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eProduct introduction\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cdiv class=\"ce_detail\" id=\"ce_detail-296493\" data-layout=\"flow\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1737622455744\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell\" id=\"content_ie-1737622455744-0\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1737622455749\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/499a9aff-2279-44a2-b9b7-17d623d429f4.jpg\" width=\"100%\" height=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1737622455754\"\u003e\n\u003cdiv\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/cc4f41c4-88c5-4e56-9324-f33223f7d5b0.jpg\" alt=\"长友气体\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/a1d9dbbe-4f02-4ff9-9e9c-5f169537ca71.jpg\" alt=\"长友气体\"\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1737622455804\"\u003e\n\u003cdiv\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/deca2df2-5ba8-462b-8ae9-6a6a2cf8b0f0.jpeg\" width=\"100%\" height=\"100%\" alt=\"长友气体\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/98039f22-5e7d-4fbb-b776-64d36773ba35.jpg\" alt=\"长友气体\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/6c67541f-2a61-49cf-b314-77ebe0c483ca.gif\" alt=\"长友气体\"\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1737622455814\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/af7cf5ba-c36c-4ff6-9e49-51642d90a93e.jpg\" width=\"100%\" height=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1738727791424\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/d2e21b98-5d07-43c6-93ae-d75c2e75e208.jpg\" width=\"100%\" height=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1737622455819\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/c2130013-04b9-409f-8a4e-13056dcad7ec.jpg\" width=\"100%\" height=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1738727833582\"\u003e\n\u003cdiv class=\"ie_grid\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell\" id=\"content_ie-1738727833582-0\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1738727843181\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/6852eaf8-b578-4325-929e-3735c9d91a4f.jpg\" width=\"100%\" height=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_1 p_gridCell\" id=\"content_ie-1738727833582-1\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1738727845779\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/4c6275b4-b510-49cc-b07c-9fd81e057cf1.gif\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1738727885648\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/d5df7daf-e4b8-4a2a-972e-ee80ec9e5193.gif\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1737622455824\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/12a24f97-00e1-458d-aa3f-3207557522d0.jpg\" width=\"100%\" height=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1737622455829\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/acf4c034-ab6b-4e4f-9e2f-35cc27d98f86.jpg\" width=\"100%\" height=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1737622455834\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/f264430c-d6c6-49f1-9270-c78591c65e6a.jpg\" width=\"100%\" height=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1737622455839\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/ee3d1d2b-bdd5-46da-8b4f-a99ff48ab786.jpg\" width=\"100%\" height=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1737622455844\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/a2406c81-2c79-4c49-a977-fb198d763275.jpg\" width=\"100%\" height=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1737622455849\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/63623c76-aac9-48ef-882e-4154e31dd34c.jpg\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1737622455854\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/cbd06f54-fc31-4c00-ba2f-6ab5c39b7841.jpg\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-1\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" width=\"84.20%\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\" colspan=\"3\"\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eAperture size\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e70mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e336mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal ratio\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ef\/4.8\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eObjective lens\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eQuintuplet petzval APO（including two pieces of ED glass）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eTotal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e332mm(when the dew shield is contracted)\u003c\/strong\u003e       \u003cbr\u003e\u003cstrong\u003e372mm(when the dew shield is stretched)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFormat specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003efull frame（44mm）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eOTA weight\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e2.68kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eGross weight（including tube ring and dovetail plate）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e3.5kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eRear-end thread type\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eM42\/M48(with M48×0.75 filter thread)\/M54 adapters\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eRear-end connection distance\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eSupport 37-68mm range (Recommended connection length is 55mm)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eStandard package items\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ea SQA70 OTA, an Oxford cloth case\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\" colspan=\"3\"\u003e\u003cstrong\u003eProduct Size Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/8d292646-f919-4112-bd3f-5dd0f2bf88b5.jpg\" alt=\"长友气体\"\u003e\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\" colspan=\"3\"\u003e\u003cstrong\u003eSQA70 Connection Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/62c83762-5d3a-4e2d-89b8-c685b858ddd5.jpg\" alt=\"长友气体\"\u003e\u003c\/figure\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\" colspan=\"3\"\u003e\u003cstrong\u003eThe  Locking Screw Position Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/c5de3e75-9421-4e89-84e0-f05312ce3cb8.jpg\" alt=\"长友气体\"\u003e\u003c\/figure\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\" colspan=\"3\"\u003e\u003cstrong\u003eSQA70 Electronic Focuser Assembly Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/ecf1a960-561a-4e5e-803a-f96bbd192fc5.jpg\" alt=\"长友气体\"\u003e\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/0e0ab408-fc4e-4bd9-b6fc-98ee34b536a9.jpg\" alt=\"长友气体\"\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-2\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eVideo\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cdiv class=\"video-box\" controlslist=\"nodownload\"\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/g2OrZKbUPeE?si=zPZSl0ziEdaDIXyW\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-3\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eImages\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix response-transition\"\u003e\n\u003cfigure class=\"image image_resized\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/c3bbe53d-7cb2-4f0d-88c1-1b09057eedda.jpg\" alt=\"长友气体\"\u003e\n\u003cfigcaption\u003e\u003cspan\u003e\u003cstrong\u003eBrandon Boss  |  Andromeda Galaxy (M31)  |  ASKAR SQA70 + ZWO ASI533MC Pro\u003c\/strong\u003e\u003c\/span\u003e\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"image image_resized\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/1de1cb34-ec83-4d8b-9052-a5940e8144d4.jpg\" alt=\"长友气体\"\u003e\n\u003cfigcaption\u003e\u003cspan\u003e\u003cstrong\u003eSascha Wyss  |  M24 Region  |  ASKAR SQA70 + ZWO ASI2600MC AIR\u003c\/strong\u003e\u003c\/span\u003e\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"image image_resized\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/4d611550-dd51-409b-8429-1e194e944ece.jpg\" alt=\"长友气体\"\u003e\n\u003cfigcaption\u003e\u003cspan\u003e\u003cstrong\u003e郑寅杰  |  IC 1805  Heart Nebula  |  ASKAR SQA70 + ZWO ASI 2600MC\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":55279578808696,"sku":"ASKR-SQA70","price":1436.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sqa70sideview.png?v=1758012319"},{"product_id":"askar-phq151-apo-refractor-151-mm-quintuplet-f-7-dark-clear-skies","title":"Askar PHQ151 APO Refractor (151 mm Quintuplet f\/7) – Dark Clear Skies","description":"\u003c!-- Askar PHQ151 – Product Description --\u003e\n\u003cdiv class=\"dcs-product space-y-6\"\u003eThe \u003cstrong\u003eAskar PHQ151\u003c\/strong\u003e is a flagship \u003cstrong\u003e151 mm f\/7 quintuplet APO\u003c\/strong\u003e astrograph built for serious deep-sky imaging. With its \u003cstrong\u003enative flat-field design\u003c\/strong\u003e, this instrument produces \u003cem\u003erazor-sharp stars across full-frame and large-format sensors\u003c\/em\u003e—no flattener required.\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar151phqmountedview.webp?v=1758017008\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHuge aperture:\u003c\/strong\u003e 151 mm of light-gathering power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlat field:\u003c\/strong\u003e Petzval-inspired quintuplet design eliminates field curvature.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal length:\u003c\/strong\u003e 1057 mm at \u003cstrong\u003ef\/7\u003c\/strong\u003e, perfect for galaxies and smaller nebulae.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperb colour correction:\u003c\/strong\u003e Multiple ED elements for chromatic control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-duty focuser:\u003c\/strong\u003e Large 4″ rack-and-pinion for heavy imaging trains.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust build:\u003c\/strong\u003e Precision CNC machining with retractable dew shield.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical summary\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\" role=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eOptical design\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eQuintuplet APO with flat field\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eAperture\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003e151 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eFocal length\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003e1057 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eFocal ratio\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003ef\/7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eImage circle\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eFull-frame \u0026amp; large-format compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eFocuser\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003e4″ rack-and-pinion, dual-speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eWeight (OTA)\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003e~15 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eIncluded\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eOTA, rings, dovetail, adapters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eBest for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdvanced astrophotographers using full-frame or large-format sensors\u003c\/li\u003e\n\u003cli\u003eTargets requiring high resolution: galaxies, globular clusters, small nebulae\u003c\/li\u003e\n\u003cli\u003ePermanent observatories and serious imaging rigs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-0\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eProduct introduction\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cdiv class=\"ce_detail\" data-layout=\"flow\" id=\"ce_detail-278572\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1676940812372\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell\" id=\"content_ie-1676940812372-0\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1676940812377\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell\" id=\"content_ie-1676940812377-0\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1676940812382\"\u003e\n\u003cdiv\u003e\u003cimg height=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/98c37934-096a-485e-9e5f-3aa0692db920.jpg\" width=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_line\" id=\"ie_line-1676940812627\"\u003e\n\u003cspan\u003e \u003c\/span\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"reset_style\" id=\"ie_text-1676940812632\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003e151PHQ is a long-focal-ratio, flatfield astrograph newly launched after 130PHQ and also the biggest refractor of Sharpstar products till now. Instead of buying extra flatteners, calculating the backfocus of the flattener, or making a tedious connection to match the distance, astrophotographers can simply equip it with any possible imaging devices, make the target stay at the focus, and then the whole optical system is perfect for imaging.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e151PHQ has a focal ratio of f\/7 and a focal length of 1057mm. The aperture is 151mm, which is the largest of Askar refractors so far. The quadruplet lens with two ED glasses offers excellent control of chromatic and other aberrations. With its self-flattening design, 151PHQ offers strong advantages in the astronomical shooting. It supports a medium frame 60mm image circle, has a fine spot diagram with tiny distortion of the peripheral stars, and its central RMS radius is less than 2 microns.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e151PHQ comes with a telescopic lens hood, a high-quality CNC machined and painted tube, and attractive decorative parts. The 3.4\" R\u0026amp;P focuser comes with M68\/M54\/M48 adapters, 360°rotator and a finder base. When used with the 3\" 0.7 x flat field reducer, the telescope can reach a focal ratio of f\/4.9 and a focal length of 740mm, effectively reducing exposure time. The multifunctional handle comes with a central slot for attaching an M6 screw with an M6 screw hole. A standard 300mm Losmandy dovetail plate, together with a sturdy double tube ring, is perfectly suited for viewing and shooting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1676940812637\"\u003e\n\u003cdiv\u003e\u003cimg height=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/307bc671-7fa9-46c6-b166-de2be86ef2b9.jpg\" width=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1676940812642\"\u003e\n\u003cdiv\u003e\u003cimg height=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/b9152fea-5a54-4b65-beaf-6cfc05717813.jpg\" width=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-1\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" width=\"84.20%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003e151PHQ Illustrate in detail\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eAperture size\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e151mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e1057mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal ratio\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ef\/7\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eObjective lens\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eQuadruplet air-spaced APO (including two ED glass) \u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eImage circle\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e60mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum accessory connection\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e(with the focuser fully retreated)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eImaging mode：\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e78mm（from the base of M48×0.75 male thread）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eObserving mode ：\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e119mm （from the end of1.25\" eyepiece holder）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eTotal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eObserving mode：930.3mm（with the dew shield contracted）1117.8mm（with the dew shield fully stretched）\u003cbr\u003eImaging mode：976.8mm（with the dew shield contracted）1164.3mm（with the dew shield fully stretched）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eOTA Weight\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e11.6kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eTotal Weight (Including tube ring\u0026amp;dovetail plate）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e13.7kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eRear-end thread type\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eM86×1-M68×1    \u003cbr\u003eM68×1-M54×0.75    \u003cbr\u003eM54×0.75-M54×0.75 \u003cbr\u003eM54×0.75-M48×0.75（built-in M48×0.75 filter thread）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFour-piece photographic end adapter\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eM48×0.75\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eStandard package items\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eAn 151PHQ OTA，a pair of tube rings, a handle, an Askar losmandy 300mm dovetail plate, a set of 4-piece photographic adapters, an aluminum box，a manual\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg id=\"1627845938779987968\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/28082a52-4b55-4374-8169-9ff7b600ac92.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-2\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eVideo\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cdiv class=\"video-box\" controlslist=\"nodownload\"\u003e\u003ciframe height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/8CLXf4h9eT4\" title=\"YouTube video player\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-3\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eImages\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix response-transition\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cimg id=\"1627846496017199104\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/4d2789a9-0bee-4ddd-895e-e63c386c9c78.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMr.ZhuLiQun     |     Rosette Nebula     |     ASKAR 151PHQ+ASI 6200     |     SHO 3.5hrs\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cstrong\u003e\u003cstrong\u003e\u003c!-- FAQ Schema --\u003e \u003cscript type=\"application\/ld+json\"\u003e\n  {\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"@id\": \"{{ shop.url }}{{ product.url }}#faq\",\n    \"mainEntity\": [\n      {\n        \"@type\": \"Question\",\n        \"name\": \"Does the PHQ151 require a separate field flattener?\",\n        \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"No. The PHQ151 has a built-in flat-field design suitable for full-frame and large-format imaging sensors.\" }\n      },\n      {\n        \"@type\": \"Question\",\n        \"name\": \"What is the focal length and ratio of the PHQ151?\",\n        \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"It has a focal length of 1057 mm and operates at f\/7.\" }\n      },\n      {\n        \"@type\": \"Question\",\n        \"name\": \"Is the PHQ151 portable?\",\n        \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"At around 15 kg, it is best suited for permanent setups or heavy-duty mounts rather than lightweight travel rigs.\" }\n      }\n    ]\n  }\n  \u003c\/script\u003e \u003c\/strong\u003e\u003c\/strong\u003e\n\u003c\/div\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":55279645393272,"sku":"ASKAR-151PHQ","price":4399.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar151phqsideview.webp?v=1782295110"},{"product_id":"askar-60f-apo-astrograph","title":"Askar 60F APO Astrograph (60 mm f\/5) – Portable Wide-Field Telescope | Dark Clear Skies","description":"\u003c!-- Askar 60F – Product Description --\u003e\n\u003cdiv class=\"dcs-product space-y-6\"\u003e\n\u003ch2\u003eAskar 60F – Portable APO Astrograph with Reducer\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAskar 60F\u003c\/strong\u003e is a compact, portable \u003cstrong\u003eapochromatic refractor\u003c\/strong\u003e designed for astrophotographers who want sharp, wide-field images in a highly travel-friendly package. Built on the popular FRA (Flatfield Refractive Astrograph) series design, the 60F offers a \u003cem\u003eflat field, excellent colour correction, and easy setup\u003c\/em\u003e for both beginners and experienced imagers.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAperture:\u003c\/strong\u003e 60 mm APO optics with ED glass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal length:\u003c\/strong\u003e 300 mm (native) – reduced further with the optional 0.8× reducer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal ratio:\u003c\/strong\u003e f\/5 native (f\/4 with reducer), ideal for fast imaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlat field design:\u003c\/strong\u003e Stars remain tight across APS-C and full-frame sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight:\u003c\/strong\u003e Small OTA weighing just ~2 kg, perfect for portable setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImaging ready:\u003c\/strong\u003e 2″ focuser with adapters for easy camera connection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical summary\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\" role=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eOptical design\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eAPO refractor with built-in field correction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eAperture\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003e60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eFocal length\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003e300 mm (240 mm with reducer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eFocal ratio\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003ef\/5 native, f\/4 with reducer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eImage circle\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eUp to full-frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eFocuser\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003e2″ rack-and-pinion, dual-speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eOTA weight\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003e~2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eIncluded\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eOTA, rings, dovetail bar, camera adapters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eBest for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWide-field astrophotography (Milky Way, large nebulae, star clusters)\u003c\/li\u003e\n\u003cli\u003eBeginner-friendly imaging setups with small equatorial mounts\u003c\/li\u003e\n\u003cli\u003ePortable rigs for travel or grab-and-go astrophotography\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- FAQ Schema --\u003e \u003cscript type=\"application\/ld+json\"\u003e\n  {\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"@id\": \"{{ shop.url }}{{ product.url }}#faq\",\n    \"mainEntity\": [\n      {\n        \"@type\": \"Question\",\n        \"name\": \"Does the Askar 60F need a separate field flattener?\",\n        \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"No. The 60F has a built-in flat-field design, though an optional 0.8× reducer can make it even faster.\" }\n      },\n      {\n        \"@type\": \"Question\",\n        \"name\": \"Is the Askar 60F suitable for full-frame cameras?\",\n        \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Yes, the 60F provides a corrected field that supports full-frame imaging sensors.\" }\n      },\n      {\n        \"@type\": \"Question\",\n        \"name\": \"What is the weight of the OTA?\",\n        \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"The optical tube weighs around 2 kg, making it ideal for lightweight and portable setups.\" }\n      }\n    ]\n  }\n  \u003c\/script\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv id=\"saf-detail-0\" class=\"cbox-57 p_loopItem\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eProduct introduction\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cdiv id=\"ce_detail-299795\" data-layout=\"flow\" class=\"ce_detail\"\u003e\n\u003cdiv id=\"ie_grid-1752220603774\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv id=\"content_ie-1752220603774-0\" class=\"e_box e_box-000 d_gridCell_0 p_gridCell\"\u003e\n\u003cdiv id=\"ie_grid-1752220603779\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv id=\"content_ie-1752220603779-0\" class=\"e_box e_box-000 d_gridCell_0 p_gridCell\"\u003e\n\u003cdiv id=\"ie_fimg-1752220603784\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"长友气体\" width=\"100%\" height=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/dfa8bbf2-0d0b-4b9b-88d9-eb01af2debd4.jpg\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_grid-1752220788502\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv id=\"content_ie-1752220788502-0\" class=\"e_box e_box-000 d_gridCell_0 p_gridCell\"\u003e\n\u003cdiv id=\"ie_grid-1752220791966\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv id=\"content_ie-1752220791966-0\" class=\"e_box e_box-000 d_gridCell_0 p_gridCell\"\u003e\n\u003cdiv id=\"ie_grid-1752220791968\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv id=\"content_ie-1752220791968-0\" class=\"e_box e_box-000 d_gridCell_0 p_gridCell\"\u003e\n\u003cdiv id=\"ie_grid-1752220791971\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv id=\"content_ie-1752220791971-0\" class=\"e_box e_box-000 d_gridCell_0 p_gridCell\"\u003e\n\u003cdiv id=\"ie_grid-1752220791973\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv id=\"content_ie-1752220791973-0\" class=\"e_box e_box-000 d_gridCell_0 p_gridCell\"\u003e\n\u003cdiv id=\"ie_fimg-1752220791976\" class=\"ie_fimg\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_line-1752220604034\" class=\"ie_line\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_text-1752220604039\" class=\"reset_style\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eThe Askar 60F is an OTA with an aperture of 60 mm, a focal length of 408mm, and a native focal ratio of F6.8, designed for astronomy enthusiasts who prioritize portability and high image quality.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Askar 60F features a quadruplet optical lens design (three front elements and one rear element), including one piece of ED glass， which can effectively reduce chromatic aberration. The Askar 60F supports 44mm full-frame imaging with great performance of the surrounding star points. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1752815427994\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\n\u003cimg alt=\"长友气体\" width=\"100%\" height=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/1eb920d1-fcfb-45b1-b5cc-46c71dd25832.jpg\"\u003e\u003cspan\u003eWith its built-in field flattener, the Askar 60F eliminates the need for an additional flattener and complex back-focus calculations. Simply attach your camera, achieve focus, and you’re ready to capture images, making astrophotography simpler and more enjoyable.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_grid-1755588304495\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv id=\"content_ie-1755588304495-0\" class=\"e_box e_box-000 d_gridCell_0 p_gridCell\"\u003e\n\u003cdiv id=\"ie_fimg-1755588304497\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"长友气体\" width=\"100%\" height=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/d9b88bb2-8f8c-4aa1-b590-2da36867759a.jpg\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"content_ie-1755588304495-1\" class=\"e_box e_box-000 d_gridCell_1 p_gridCell\"\u003e\n\u003cdiv id=\"ie_fimg-1755588304499\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"长友气体\" width=\"100%\" height=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/55a29dc8-b27d-4d44-a5d0-4fcb282f0d0c.jpg\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"content_ie-1755588304495-2\" class=\"e_box e_box-000 d_gridCell_2 p_gridCell\"\u003e\n\u003cdiv id=\"ie_fimg-1755588304500\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"长友气体\" width=\"100%\" height=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/621daa2b-86a6-4a17-9ff5-1eb9a94c69a7.jpg\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_text-1752220604049\" class=\"reset_style\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Askar 60F OTA weighs only 2.5kg, and the gross weight is 3kg (including the tube rings and dovetail plate). It is compact and lightweight, making it easy to carry for observing or astrophotography—wherever your exploration takes you.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Askar 60F is designed for both visual observation and photography. It comes with a photographic extension tube featuring a built-in 2\" filter thread and has M48×0.75 and M54×0.75 adapters, making it compatible with DSLRs and astronomical cameras for quick connection and instant shooting. \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1752815480241\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"长友气体\" width=\"100%\" height=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/bfd92ab9-f018-4bba-a1e7-486c93ca205c.jpg\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003eThe mechanical design of the Askar 60F minimizes hidden usage costs and ensures a smooth experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Askar 60F features a retractable dew shield, further reducing overall length and enhancing portability. The inside of the tube is pasted with matting felt to eliminate stray light better, while the exterior sports a sleek blue-and-white colour scheme with high-quality CNC machining and paint finish.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOn the handle bar of Askar 60F, it has a finder base slot. Besides, there are two finder bases on both sides of the focuser, which not only eliminates the need for disassembling when changing the position of the finder scope but also provides additional mounting positions for other astronomical accessories.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn terms of the focuser, the Askar 60F is equipped with a dual-speed R\u0026amp;P 2.4-inch rigid focuser, offering 1:10 fine-tuning. The fine adjustment knob has an anti-slip cover, and the rear features a 360° scale rotator for precise angle adjustment.  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe dovetail plate is a 230mm standard Vixen-style plate, with 1\/4\" and 3\/8\" screw holes, allowing direct connection to a tripod.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOffering professional-grade performance at an entry-level price, the Askar 60F is your ideal companion for exploring the cosmos and capturing nature’s beauty. Travel light, discover more—start your journey with Askar 60F!\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1752815535020\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"长友气体\" width=\"100%\" height=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/f9e5b5ae-a6bb-4b98-8fb4-4d2bd3396bf2.jpg\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1752220604089\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\n\u003cimg alt=\"长友气体\" width=\"100%\" height=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/1d1ee564-86ed-4386-a4fd-d0163321c49c.jpeg\"\u003e\u003cimg alt=\"长友气体\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/0961e67a-596f-472f-a118-2d9b70fdce14.jpg\"\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"saf-detail-1\" class=\"cbox-57 p_loopItem\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable class=\"ck-table-resized\"\u003e\n\u003ccolgroup\u003e \u003ccol\u003e \u003ccol\u003e \u003ccol\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\" class=\"responsive-title\"\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAperture size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003e60mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003e408mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003ef\/6.8\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eObjective lens\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eQuadruplet air-spaced APO(including one ED glass)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eImage circle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003e44mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum accessory connection (with the focuser fully retreated)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eImaging mode: \u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e81mm (from the base of M48×0.75 male thread） \u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e99mm（from the base of M54×0.75 male thread)\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eObserving mode: \u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e120mm（from the end of 1.25\" eyepiece holder） \u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e130mm（from the end of 2\" eyepiece holder）\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum accessory connection (with the focuser fully extended)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eImaging mode: \u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e31mm (from the base of M48×0.75 male thread） \u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e49mm（from the base of M54×0.75 male thread)\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eObserving mode: \u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e70mm（from the end of 1.25\" eyepiece holder） \u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e80mm（from the end of 2\" eyepiece holder）\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003e289mm(including 1.25\" adapter as dew shield contracted） \u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e323mm(including 1.25\" adapter as dew shield fully stretched） \u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e336mm(including the photographic adapter as dew shield contracted） \u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e369mm(including the photographic adapter as dew shield fully stretched）\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocuser travel length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003e50mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003e2.36kg\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGross weight (Including tube ring\u0026amp;dovetail plate)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003e2.86kg\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRear-end thread type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003eM64×0.75-M54×0.75 \u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003eM54×0.75-M54×0.75 \u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003eM54×0.75-M48×0.75  (with M48×0.75 filter thread)\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandard package items\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003e A 60F OTA，a pair of tube rings, a handle, a mm Vixen dovetail plate,a set of photographic adapters\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\"\u003e\u003cstrong\u003eProduct Size Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg alt=\"长友气体\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/4da5ff7b-ecc0-4710-8946-ed19031fbba6.jpg\"\u003e\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\"\u003e\u003cstrong\u003e60F Connection Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg alt=\"长友气体\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/3a4ccbd6-82bd-426b-a686-67e2262fa975.jpg\"\u003e\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\"\u003e\u003cstrong\u003eThe Locking Screw Position Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg alt=\"长友气体\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/a859e8f9-aad8-44ea-97e7-b667b77bb291.jpg\"\u003e\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\"\u003e\u003cstrong\u003eElectronic Focuser Assembly Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg alt=\"长友气体\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/ba0e401b-24ed-4669-a3e2-00786aa1f7ef.jpg\"\u003e\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\"\u003e\u003cstrong\u003eOptical Path Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg alt=\"长友气体\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/4e404fdd-a0cd-4dee-94a8-dd323ee7b67b.jpg\"\u003e\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\"\u003e\u003cstrong\u003eSpot Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg alt=\"长友气体\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/ce20716a-504a-4d0b-8479-0b5157d2bf41.jpg\"\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"saf-detail-2\" class=\"cbox-57 p_loopItem\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eVideo\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cdiv controlslist=\"nodownload\" class=\"video-box\"\u003e\u003ciframe width=\"560\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/xOv6gQuOnjo?si=i_hwjn9uEo7hG6D4\" height=\"315\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"saf-detail-3\" class=\"cbox-57 p_loopItem\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eImages\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix response-transition\"\u003e\n\u003cfigure class=\"image image_resized\"\u003e\u003cimg alt=\"长友气体\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/ba3a7ae5-cf89-4b02-9b98-d7743d71f0d5.jpg\"\u003e\n\u003cfigcaption\u003e\u003cspan\u003e\u003cstrong\u003eM8+M20   |  ASKAR 60F + ZWO ASI 2600MC\u003c\/strong\u003e\u003c\/span\u003e\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":55279678095736,"sku":"Askar 60F","price":498.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar60fsideview.png?v=1782295116"},{"product_id":"askar-91f-flat-field-apo","title":"Askar 91F APO Refractor (91 mm f\/5.6 Flat-Field) – Dark Clear Skies","description":"\u003c!-- Askar 91F – Product Description --\u003e\n\u003cdiv class=\"dcs-product space-y-6\"\u003e\n\u003ch2\u003eAskar 91F – Flat-Field APO Astrograph\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAskar 91F\u003c\/strong\u003e is a powerful \u003cstrong\u003e91 mm f\/5.6 flat-field apochromatic refractor\u003c\/strong\u003e designed for deep-sky astrophotography. With its \u003cstrong\u003eFRA-series Petzval optical design\u003c\/strong\u003e, the 91F delivers a native flat field and \u003cem\u003epinpoint stars across APS-C and full-frame sensors\u003c\/em\u003e without needing an additional field flattener.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAperture:\u003c\/strong\u003e 91 mm APO optics with ED glass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal length:\u003c\/strong\u003e 500 mm at f\/5.6 – balanced between wide field and resolution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlat field design:\u003c\/strong\u003e Petzval quintuplet optics provide sharp stars edge-to-edge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-frame coverage:\u003c\/strong\u003e Generous image circle supports modern large-format sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSturdy build:\u003c\/strong\u003e CNC-machined tube with retractable dew shield.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision focuser:\u003c\/strong\u003e 3.5″ rack-and-pinion, dual-speed focuser for heavy imaging trains.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical summary\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\" role=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eOptical design\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eQuintuplet APO (Petzval, native flat field)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eAperture\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003e91 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eFocal length\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003e500 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eFocal ratio\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003ef\/5.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eImage circle\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eFull-frame compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eFocuser\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003e3.5″ rack-and-pinion, dual-speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eWeight (OTA)\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003e~6.9 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eIncluded\u003c\/th\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #e5e7eb;\"\u003eOTA, tube rings, dovetail, adapters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eBest for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWide-field astrophotography with added reach (galaxies, nebulae, clusters)\u003c\/li\u003e\n\u003cli\u003eFull-frame and APS-C imaging with flat, corrected fields\u003c\/li\u003e\n\u003cli\u003eAstrophotographers seeking balance between portability and aperture\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- FAQ Schema --\u003e \u003cscript type=\"application\/ld+json\"\u003e\n  {\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"@id\": \"{{ shop.url }}{{ product.url }}#faq\",\n    \"mainEntity\": [\n      {\n        \"@type\": \"Question\",\n        \"name\": \"Does the Askar 91F require a separate field flattener?\",\n        \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"No. The 91F is a Petzval flat-field design that delivers a corrected image without additional accessories.\" }\n      },\n      {\n        \"@type\": \"Question\",\n        \"name\": \"What is the focal length of the Askar 91F?\",\n        \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"The telescope has a 500 mm focal length with a focal ratio of f\/5.6.\" }\n      },\n      {\n        \"@type\": \"Question\",\n        \"name\": \"Is the 91F suitable for full-frame sensors?\",\n        \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Yes. The 91F provides a flat, corrected image circle large enough for full-frame sensors.\" }\n      }\n    ]\n  }\n  \u003c\/script\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv id=\"saf-detail-0\" class=\"cbox-57 p_loopItem\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eProduct introduction\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cdiv id=\"ce_detail-299215\" data-layout=\"flow\" class=\"ce_detail\"\u003e\n\u003cdiv id=\"ie_grid-1749608478301\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv id=\"content_ie-1749608478301-0\" class=\"e_box e_box-000 d_gridCell_0 p_gridCell\"\u003e\n\u003cdiv id=\"ie_grid-1749608478306\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv id=\"content_ie-1749608478306-0\" class=\"e_box e_box-000 d_gridCell_0 p_gridCell\"\u003e\n\u003cdiv id=\"ie_fimg-1749608478311\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"长友气体\" width=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/a3df0069-a893-4f9b-b959-77540ba5aeb6.jpg\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_grid-1749608478316\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv id=\"content_ie-1749608478316-0\" class=\"e_box e_box-000 d_gridCell_0 p_gridCell\"\u003e\n\u003cdiv id=\"ie_grid-1749608478321\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv id=\"content_ie-1749608478321-0\" class=\"e_box e_box-000 d_gridCell_0 p_gridCell\"\u003e\n\u003cdiv id=\"ie_grid-1749608478326\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv id=\"content_ie-1749608478326-0\" class=\"e_box e_box-000 d_gridCell_0 p_gridCell\"\u003e\n\u003cdiv id=\"ie_grid-1749608478331\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv id=\"content_ie-1749608478331-0\" class=\"e_box e_box-000 d_gridCell_0 p_gridCell\"\u003e\n\u003cdiv id=\"ie_fimg-1749608478336\" class=\"ie_fimg\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_grid-1749608700397\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv id=\"content_ie-1749608700397-1\" class=\"e_box e_box-000 d_gridCell_1 p_gridCell\"\u003e\n\u003cdiv id=\"ie_grid-1749608700400\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv id=\"content_ie-1749608700400-2\" class=\"e_box e_box-000 d_gridCell_2 p_gridCell\"\u003e\n\u003cdiv id=\"ie_grid-1749608700412\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv id=\"content_ie-1749608700412-0\" class=\"e_box e_box-000 d_gridCell_0 p_gridCell\"\u003e\n\u003cdiv id=\"ie_text-1749608700416\" class=\"reset_style\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_line-1749608478561\" class=\"ie_line\"\u003e\u003cspan\u003eThe Askar 91F is an OTA with an aperture of 91mm, a focal length of 609mm, and a native focal ratio of F6.7.  \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv id=\"ie_text-1749608478566\" class=\"reset_style\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eThe optical design of the Askar 91F features a four-element configuration (three elements in the front and one in the rear), including one piece of ED glass， which can effectively reduce chromatic aboration. The Askar 91F supports 44mm full-frame imaging with great performance of the surrounding star points.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Askar 91F is a self-flattened design that allows users to avoid calculating the back focus and buying additional flatteners. After attaching the imaging accessories, users can directly use it for shooting after the OTA is in focus. This further reduces the cost and improves the pleasure of shooting.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_grid-1755656783837\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv id=\"content_ie-1755656783837-0\" class=\"e_box e_box-000 d_gridCell_0 p_gridCell\"\u003e\n\u003cdiv id=\"ie_fimg-1755656783839\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"长友气体\" width=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/4624e4d6-959a-4a4a-aca6-9c125f648079.JPG\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_text-1755656783843\" class=\"reset_style\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eASTROPHOTOGRAPHY\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"content_ie-1755656783837-1\" class=\"e_box e_box-000 d_gridCell_1 p_gridCell\"\u003e\n\u003cdiv id=\"ie_fimg-1755656783841\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"长友气体\" width=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/45ab158c-d6d7-4dd5-a471-b2ca493eb494.JPG\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_text-1755656783844\" class=\"reset_style\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eDAILY PHOTOGRAPHY\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"content_ie-1755656783837-2\" class=\"e_box e_box-000 d_gridCell_2 p_gridCell\"\u003e\n\u003cdiv id=\"ie_fimg-1755656783842\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"长友气体\" width=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/53f60f3f-4311-4043-89e6-102b6d476d58.jpg\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_text-1755656783845\" class=\"reset_style\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eVISUAL OBSERVATION\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1749608478591\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"长友气体\" width=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/b8f20973-5d5c-4493-975a-e06d05b020df.jpg\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_text-1749608478596\" class=\"reset_style\"\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_text-1749608478601\" class=\"reset_style\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eThe Askar 91F strikes a balance between practicality and versatility while achieving lightweight portability through its compact design.The OTA weighs just 3.92kg, with a gross weight of 4.52kg (including the tube rings and dovetail plate).  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Askar 91F is versatile in its use, allowing for both visual observation and astrophotography.     For user convenience, it comes standard with three visual accessories: an 8mm eyepiece, a 20mm eyepiece, and a 1.25-inch erecting prism.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1749608478606\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"长友气体\" width=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/3abcc63f-9690-4a70-ae61-dcdaec24c590.jpg\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_text-1749608478611\" class=\"reset_style\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eThe 8mm eyepiece has a magnification of 76x and the 20mm eyepiece has a magnification of 30x.The Askar 91F can be used with different eyepieces depending on the target, and both eyepieces are ideal for viewing birds and landscapes.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1749608478616\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"长友气体\" width=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/d60045b0-2ff2-4e43-9fbe-8740e10fd73e.jpg\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_text-1749608847012\" class=\"reset_style\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eBoth eyepieces are 1.25 inches and have a soft rubberized top for comfortable use.  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 1.25-inch erecting prism provides correct left-to-right and down-to-up image views, making users easy for you to conduct terrestrial and astronomical observations without the hassle of seeing images reversed up, down, left, and right.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1749608478626\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"长友气体\" width=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/b036cb1a-693f-4a79-88ad-0ec7247137c2.jpg\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_text-1749608933068\" class=\"reset_style\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eThe Askar 91F also comes standard with a photographic extension tube with a built-in 2-inch filter thread for easy shooting connections, providing M48×0.75 \u0026amp; M54×0.75 adapters to accommodate various DSLR cameras and professional astronomical cameras, meeting diverse imaging needs.  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cvideo playsinline=\"\" muted=\"\" loop=\"loop\" autoplay=\"autoplay\"\u003e\u003c\/video\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_text-1749797695296\" class=\"reset_style\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe mechanical design of the Askar 91F itself adheres to Askar's consistent philosophy of taking into account the user's habits and minimizing the user's invisible costs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Askar 91F features a retractable dew shield, further reducing overall length and enhancing portability.The inside of the tube is pasted with matting felt to better eliminate stray light, while the exterior sports a sleek blue-and-white color scheme with high-quality CNC machining and paint finish.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Askar 91F’s handle is 130mm long and has a finder base slot. Besides, there are two finder bases on both sides of the focuser, which not only eliminates the need for disassembling when changing the position of the finder scope but also provides additional mounting positions for other astronomical accessories.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn terms of the focuser, the Askar 91F is equipped with a dual-speed R\u0026amp;P 3-inch rigid focuser, which has a 1:10 fine adjustment and a 360° scaled rotator at the rear end for precise angle adjustment.The 230mm Vixen-style dovetail plate includes 1\/4\" and 3\/8\" screw holes for direct tripod mounting.  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1749797719616\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"长友气体\" width=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/45be5f3f-49d0-47af-9dd9-e3be0d6c9057.jpg\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_text-1749608990776\" class=\"reset_style\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eThe rear interface of the Askar 91F includes both 2-inch and 1.25-inch adapters, enabling compatibility with a wide range of astronomical accessories.  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether for deep-sky astrophotography, planetary observation, or birdwatching and travel, the 91F is your ideal companion for exploring the world.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1755592664590\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"长友气体\" width=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/4e1e8fa8-f15f-4591-a1ca-c2906621e6a5.jpg\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1749609005269\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"长友气体\" width=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/515a5a93-2bfd-4c0e-ac15-1442805daa1c.jpg\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"saf-detail-1\" class=\"cbox-57 p_loopItem\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable class=\"ck-table-resized\"\u003e\n\u003ccolgroup\u003e\n\u003ccol\u003e\n\u003ccol\u003e\n\u003ccol\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\" class=\"responsive-title\"\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAperture size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003e91mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003e609mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003ef\/6.7\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eObjective lens\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eQuadruplet air-spaced APO(including one ED glass)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eImage circle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003e44mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum accessory connection (with the focuser fully retreated)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eImaging mode: \u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e75mm (from the base of M48×0.75 male thread）\u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e93mm（from the base of M54×0.75 male thread)\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eObserving mode: \u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e112mm（from the end of 1.25\" eyepiece holder）\u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e122mm（from the end of 2\" eyepiece holder）\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum accessory connection (with the focuser fully extended)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eImaging mode: \u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e45mm (from the base of M48×0.75 male thread）\u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e63mm（from the base of M54×0.75 male thread)\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eObserving mode: \u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e82mm（from the end of 1.25\" eyepiece holder）\u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e92mm（from the end of 2\" eyepiece holder）\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003e513mm(including 1.25\" adapter as dew shield contracted）\u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e599mm(including 1.25\" adapter as dew shield fully stretched）\u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e550mm(including the photographic adapter as dew shield contracted）\u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003e636mm(including the photographic adapter as dew shield fully stretched）\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocuser travel length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003e30mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003e3.92kg\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGross weight (Including tube ring\u0026amp;dovetail plate)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003e4.52kg\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRear-end thread type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003eM64×1-M54×0.75       \u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003eM54×0.75-M54×0.75       \u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e \u003cbr\u003e\u003cstrong\u003eM54×0.75-M48×0.75  (with M48×0.75 filter thread)\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandard package items\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003e A 91F OTA，a pair of tube rings, a handle, a 230mm Vixen dovetail plate,a set of photographic adapters, a 1.25-inch erecting prism, an 8mm eyepiece, a 20mm eyepiece\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\"\u003e\u003cstrong\u003eProduct Size Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg alt=\"长友气体\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/6d3433e9-069f-4e8f-8fe5-f64659c95b6e.jpg\"\u003e\u003c\/figure\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\"\u003e\u003cstrong\u003e91F Connection Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg alt=\"长友气体\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/d8b7fe34-d5d0-4555-bbc9-ead405dfacf2.jpg\"\u003e\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\"\u003e\u003cstrong\u003eThe Locking Screw Position Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg alt=\"长友气体\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/37f4ab88-3b9a-4c66-88f2-1674920272bb.jpg\"\u003e\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\"\u003e\u003cstrong\u003eElectronic Focuser Assembly Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg alt=\"长友气体\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/1acc5643-0b25-4789-a1b5-11c889ba55e2.jpg\"\u003e\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\"\u003e\u003cstrong\u003eOptical Path Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg alt=\"长友气体\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/fabf66d1-bbc7-47d2-95d9-13cbfcf8d59e.jpg\"\u003e\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\"\u003e\u003cstrong\u003eSpot Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg alt=\"长友气体\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/9204b293-5dea-45bd-a45d-91db45661241.jpg\"\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"saf-detail-2\" class=\"cbox-57 p_loopItem\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eVideo\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cdiv controlslist=\"nodownload\" class=\"video-box\"\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/qn-tNoQ6v60?si=T-66YY_w4m2-EUNq\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"saf-detail-3\" class=\"cbox-57 p_loopItem\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eImages\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix response-transition\"\u003e\n\u003cfigure class=\"image image_resized\"\u003e\u003cimg alt=\"长友气体\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/b5f6d47e-bc5a-42e3-bf8a-da1e5312b953.jpg\"\u003e\n\u003cfigcaption\u003e\u003cspan\u003e\u003cstrong\u003eNGC281  |  张宇航  |  Askar 91F Flat-Field + ZWO ASI2600MC\u003c\/strong\u003e\u003c\/span\u003e\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image image_resized\"\u003e\u003cimg alt=\"长友气体\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/aa472e92-cdc4-42e5-abc2-11effb6bf352.jpg\"\u003e\n\u003cfigcaption\u003e\u003cspan\u003e\u003cstrong\u003eNGC7293  |  张宇航  |  Askar 91F Flat-Field + ZWO ASI2600MC\u003c\/strong\u003e\u003c\/span\u003e\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image image_resized\"\u003e\u003cimg alt=\"长友气体\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/bf5f815c-b3ec-47c2-9a98-7de9df824319.jpg\"\u003e\n\u003cfigcaption\u003e\u003cspan\u003e\u003cstrong\u003eGyulbudaghian's Nebula  |  Nico Carver  |  Askar 91F + ZWO ASI2600MC Air\u003c\/strong\u003e\u003c\/span\u003e\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":55279709716856,"sku":"Askar 91F","price":995.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Askar91fSideView.png?v=1758020074"},{"product_id":"askar-fra300-pro-apo-astrograph","title":"Askar FRA300 Pro APO Astrograph - Dark Clear Skies","description":"\u003cp\u003e\u003cstrong\u003eAskar FRA300 Pro APO Astrograph\u003c\/strong\u003e is a compact, widefield astrograph designed for serious deep-sky imaging. Its native Petzval quintuplet objective delivers a naturally flat field across a full-frame sensor, so you do not need a separate field flattener.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eQuintuplet APO with ED glass for excellent color correction\u003c\/li\u003e\n\u003cli\u003eFocal length: 300 mm (f\/5) for fast, widefield imaging\u003c\/li\u003e\n\u003cli\u003eNative flat field supporting a 44 mm full-frame image circle\u003c\/li\u003e\n\u003cli\u003eRobust focuser with precise adjustment for heavy imaging trains\u003c\/li\u003e\n\u003cli\u003eGreat for large nebulae, star fields, and mosaics\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical design\u003c\/td\u003e\n\u003ctd\u003eQuintuplet APO, native Petzval\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAperture\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal length\u003c\/td\u003e\n\u003ctd\u003e300 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal ratio\u003c\/td\u003e\n\u003ctd\u003ef\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage circle\u003c\/td\u003e\n\u003ctd\u003e44 mm (full frame)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse\u003c\/td\u003e\n\u003ctd\u003eAstrophotography \/ Widefield imaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhat makes it different?\u003c\/h3\u003e\n\u003cp\u003eThe FRA series uses a Petzval layout where the rear elements correct the field, producing a flat, sharp image without extra reducers or flatteners. This simplifies spacing and improves reliability for mobile rigs.\u003c\/p\u003e\n\u003ch3\u003eIdeal targets\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLarge emission and reflection nebulae\u003c\/li\u003e\n\u003cli\u003eWide star fields and dark nebulae\u003c\/li\u003e\n\u003cli\u003eLarge open clusters and Milky Way panoramas\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-0\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eProduct introduction\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cdiv class=\"ce_detail\" data-layout=\"flow\" id=\"ce_detail-276018\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1669622228255\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell\" id=\"content_ie-1669622228255-0\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1669622228260\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell\" id=\"content_ie-1669622228260-0\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1669622228265\"\u003e\n\u003cdiv\u003e\u003cimg height=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/f4199a3e-8de9-4505-893a-bdb690546ea3.jpg\" width=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"reset_style\" id=\"ie_text-1670289241184\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eSince their inception,Askar FRA serious short focal ratio astrograph have been very well received by astronomical amateurs.This year, we launch the FRA300 Pro--the smallest 60mm F\/5 Petzval astrograph with the fastest native focal ratio in the FRA series so far,it's focal length is 300mm.The star is sharp and delicate.At the center of its field of view, the RMS radius can reach 2um. Even a serious user can also be satisfied when it comes to the shape of stars.It performance excellent with full-frame and supports 44mm imaging,is a rare astrograph for amateur astronomers.Compared with F\/6 or F\/7，F\/5 can effectively reduce the exposure time,helps you get the same exposure in less time.In addition, the entire OTA is compact, making it the portable choice for field photographers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFRA300 Pro 's objective lens adopts a quintuplet fully air-spaced structure, including one piece of ED glass,it also adopts a fully-multi-coating to effectively remove stray light.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn particular, the rear group lens adopts the two pieces of far-separated refractive lenses, which improves both the star quality and the aberration correction performance , and has a very good control of full-frame peripheral light reduction.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThanks to the native Petzval design, the user does not need to calculate the backfocus, as long as the focus is within a certain range is the optimal position.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMechanically，FRA300 Pro is assembled with high-quality CNC-machined components , wrapped with smooth spray coating and light oxidation process,both beautiful and practical.The tube ring design is equally lightweight and stylish.Despite the increased cost, we want enthusiasts to use the FRA300 Pro that perform well in every way and are considered in every detail.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe focuser is 2.5\"rack-and-pinion focuser, which is solid and beautiful.It's designed with dual-speed hand knobs, twin knobs for coarse adjustment and a fine adjustment knob to accurate the focus, equipped with a universal M48X0.75 thread adapter. There are also two separate M54X0.75 and M42X0.75 adapters in the standard kit for easy access to a variety of imaging equipment and accessories. The end is equipped with a 360° rotator, which is convenient for users to rotate at any angle when shooting. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFRA300 Pro also comes standard with a multi-function handle and a 300mm vixen-style dovetail plate, which can be directly connected to various mounts and accessories, the multi-functional handle can also be connected to the universal vixen-style finder base.The 300mm dovetail plate allows the astrograph to maintain balance on the mount.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan\u003eFRA300Pro, as the first Pro version launched by Askar, goes further on the good reputation of the original FRA series, with amazing shooting performance, convenient carrying and using experience，will become your best astrophotography assistant at a cost effective price.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1669622228535\"\u003e\n\u003cdiv\u003e\u003cimg height=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/c26712ae-aade-4751-b2d5-8ad2bcf23df9.jpg\" width=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-1\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" width=\"84.20%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eFRA300PRO\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eAperture\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e60mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e300mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal ratio\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ef\/5\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eObjective type\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eQuintuplet fully air-spaced Petzval APO (including one ED glass)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eImage circle\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e44mm full-frame\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum accessory connection (with the focuser fully retreated)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e 1. Imaging mode:\u003cbr\u003e71mm (from the base of M42×0.75 male thread)\u003cbr\u003e67mm (from the base of M48×0.75 male thread)\u003cbr\u003e71mm (from the base of M54×1male thread)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eTotal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e303mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eOTA Weight\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e2.26kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eTotal Weight (Including tube ring\u0026amp;dovetail plate）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e3.12kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eRear-end thread \u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eM48*0.75 male thread\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eStandard package items\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ea tube ring, a handle, an Askar 300mm Vixen dovetail plate, a M54*0.75 adapters, a M42*0.75 adapters, a warranty，a manual\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/9b9cb75a-11e2-4c23-987e-86983b4870d0.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-2\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eVideo\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cdiv class=\"ckeditor-html5-video\"\u003e\u003cvideo controls=\"controls\" id=\"1596073208241139712\" src=\"https:\/\/omo-oss-video.thefastvideo.com\/portal-saas\/new2022072923460240318\/cms\/vedio\/d63a2ae7-9ecc-4b03-a15b-b8f3ae5115a8.mp4\"\u003e\u003c\/video\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-3\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eImages\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cimg id=\"1938428934771318784\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/ada711e4-6c05-4848-af04-f7f412e61940.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eImran Badr  | NGC 7822  | Askar FRA300 Pro+ ZWO ASI2600MM Pro\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg id=\"1935571318929235968\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/faf17be3-dbf5-43da-9c78-db58fce3f720.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eImran Badr  | Andromeda galaxy  | Askar FRA300 Pro+ ZWO ASI2600MC·MM Pro\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg id=\"1914603066368270336\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/558a95a0-e472-419f-a1f3-1297019186c6.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNicolas Puig  | IC405, IC 410, IC417  | Askar FRA300 Pro+ZWO ASI294MM Pro\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg id=\"1772131962184208384\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/ff09c08a-16c0-4935-aee7-acce31ee3d2f.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eImran Badr  | Rho Ophiuchi complex  | Askar FRA300 Pro+ZWO ASI2600MC Pro\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":55279782494584,"sku":"FRA300Pro","price":995.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/FRA300Prosideview.png?v=1758024332"},{"product_id":"askar-fra400c-apo-astrograph-dark-clear-skies","title":"Askar FRA400C APO Astrograph - Dark Clear Skies","description":"\u003ch2\u003eAskar FRA400C APO Astrograph\u003c\/h2\u003e\n\u003cp\u003eThe Askar FRA400C is a versatile \u003cstrong\u003equintuplet APO astrograph\u003c\/strong\u003e designed for both astrophotography and visual use. With a 72 mm aperture, 400 mm focal length at f\/5.6, and ED glass elements, this telescope delivers crisp, flat-field images across a large 44 mm full-frame sensor.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAperture:\u003c\/strong\u003e 72 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal Length:\u003c\/strong\u003e 400 mm (f\/5.6)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptical Design:\u003c\/strong\u003e Quintuplet APO (Petzval)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImage Circle:\u003c\/strong\u003e 44 mm (full-frame coverage)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocus:\u003c\/strong\u003e 2.5″ dual-speed rack-and-pinion focuser\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBack Focus:\u003c\/strong\u003e 140 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse Case:\u003c\/strong\u003e Wide-field astrophotography and observation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Choose the FRA400C?\u003c\/h3\u003e\n\u003cp\u003eThe FRA400C’s \u003cstrong\u003ePetzval optical design\u003c\/strong\u003e eliminates the need for a separate field flattener, ensuring sharp stars across the entire frame. This makes setup quicker and easier, saving valuable imaging time under the night sky.\u003c\/p\u003e\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWide-field imaging of nebulae and star clusters\u003c\/li\u003e\n\u003cli\u003eFull-frame astrophotography\u003c\/li\u003e\n\u003cli\u003eAstrophotographers seeking a compact, flat-field refractor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Askar FRA400C is a superb balance of portability, optical performance, and convenience, making it an excellent choice for beginners and advanced imagers alike.\u003c\/p\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-0\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eProduct introduction\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cdiv class=\"ce_detail\" id=\"ce_detail-297480\" data-layout=\"flow\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1742363521404\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell\" id=\"content_ie-1742363521404-0\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1742363521409\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/93cd99a3-5b72-450d-be3a-3485c38ce809.jpg\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1742363521414\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/c055a304-ebeb-4421-809a-d5b76fce56f3.jpg\" width=\"100%\" height=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1742363521464\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/1ec6dbf6-a4ec-4286-b17b-cea6baf2d6ef.jpg\" width=\"100%\" height=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1742363680660\"\u003e\n\u003cdiv class=\"ie_grid\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell\" id=\"content_ie-1742363680660-0\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1742363692635\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/8c542424-9442-46bd-8b00-b1156fdca5aa.gif\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_1 p_gridCell\" id=\"content_ie-1742363680660-1\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1742363694647\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/be705b9a-673e-4a22-89c3-2d37841d74ed.jpg\" width=\"100%\" height=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1743471677536\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/ad61c9dc-368c-4865-8376-68b8a9f95657.jpg\" width=\"100%\" height=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1743471698287\"\u003e\n\u003cdiv class=\"ie_grid\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell\" id=\"content_ie-1743471698287-0\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1743471706149\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/b2aebf4c-3085-4a6f-9464-230a65c2826d.gif\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_1 p_gridCell\" id=\"content_ie-1743471698287-1\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1743471708280\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/3d29c05e-35d7-4965-8172-8e08efc9558b.gif\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1743471801226\"\u003e\n\u003cdiv class=\"ie_grid\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell\" id=\"content_ie-1743471801226-0\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1743471818387\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/cedfe70c-4bdb-4e11-a734-103192aba50e.jpg\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_1 p_gridCell\" id=\"content_ie-1743471801226-1\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1743471819984\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/9daf2770-14db-4055-8134-8d92ef2fbfd4.jpg\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_2 p_gridCell\" id=\"content_ie-1743471801226-2\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1743471821783\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/4c1a8a1b-fff4-4648-8484-fff4188135a7.jpg\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1742363521469\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/6d60fdea-7334-4863-890e-dee6429286c9.jpg\" width=\"100%\" height=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1742363521474\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/49d5dc29-5f1c-4fc8-8f36-94cfca2e5ef3.jpg\" width=\"100%\" height=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1742363521479\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/b2940be0-94eb-4a71-a6d7-4e15ec826eba.gif\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1742363521484\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/36162715-e1d8-49e0-bd82-129cfdf3e1e9.jpg\" width=\"100%\" height=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1742363521489\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/f742195d-29ef-4329-a776-f9d687af8b51.jpg\" width=\"100%\" height=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1742363521494\"\u003e\n\u003cdiv\u003e\u003ca href=\"https:\/\/www.sharpstar-optics.com\/Products_1\/FRA400C_Reducer.html\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/94e5c75a-49e8-45d2-999b-1a70f0c04546.jpg\" width=\"100%\" height=\"100%\" alt=\"长友气体\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-1\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable class=\"ck-table-resized\" align=\"center\" cellspacing=\"0\" width=\"84.20%\"\u003e\n\u003ccolgroup\u003e\n\u003ccol\u003e\n\u003ccol\u003e\n\u003ccol\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eFRA400C Parameters\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eAperture size\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e72mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e400mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal ratio\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ef\/5.6\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eObjective lens\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eQuintuplet dual ED air-spaced APO\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFormat specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e44mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eAperture blades\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e17 pieces\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eGraded Aperture\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ef\/5.6-f\/22\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eClosest Focus Distance\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e5m\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocusing mode\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eManual focus\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFilter Diameter\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eM82\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eTotal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e370mm (inclulding dew shield); 420mm (without dew shield)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eOTA weight\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e2.68kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eTotal weight (including handle \u0026amp; dovetail plate)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e3.18kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eRear-end adapter\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eM72\/M54\/M48(with M48×0.75 filter thread)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eRear-end connection distance\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eSupport 50-60mm range (Recommended connection length is 55mm)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eStandard package items\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e1.25inch\/2inch adapter,a manual\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" width=\"84.20%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Size Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e\u003cimg class=\"image_resized\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/f98df608-5603-4309-9284-47eac9c9397a.jpg\" alt=\"长友气体\"\u003e\u003cimg class=\"image_resized\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/30d18517-e62e-478a-bd83-66a0e7709945.jpg\" alt=\"长友气体\"\u003e\u003cimg class=\"image_resized\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/9dbaa0d1-5386-4684-8105-fc75465b5cd5.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" width=\"84.20%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eFRA400C AFkit Electronic Focuser Assembly Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e\u003cimg class=\"image_resized\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/b470ebed-c387-45b0-9ddf-e84c0ac68145.jpg\" alt=\"长友气体\"\u003e\u003cimg class=\"image_resized\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/20121f82-d070-49d6-96b2-b6cd5d566a9b.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" width=\"84.20%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eOptical Path Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e\u003cimg class=\"image_resized\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/e0e57d95-4f16-492c-8b31-d6d5a20e1d12.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" width=\"84.20%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eSpot Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e\u003cimg class=\"image_resized\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/3b6efed1-779f-4666-8c49-ac1309932316.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" width=\"84.20%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eLongitudinal Aberration\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e\u003cimg class=\"image_resized\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/ccf69363-36d7-4a1c-9a21-4e26a58d9ef1.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-2\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eVideo\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cdiv class=\"video-box\" controlslist=\"nodownload\"\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/JwuV7BSWoRY?si=rqf6cKMaYyuD9USJ\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-3\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eImages\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix response-transition\"\u003e\n\u003cfigure class=\"image image_resized\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/cca29610-f81f-4c52-8809-7f7ab0259853.jpg\" alt=\"长友气体\"\u003e\n\u003cfigcaption\u003e\u003cspan\u003e\u003cstrong\u003eThe Shark Nebula LRGB  |  Mihail Mamchurov  |  Askar FRA400 + ZWO ASI2600MM Pro\u003c\/strong\u003e\u003c\/span\u003e\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image image_resized\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/88cfbd95-d14e-48d3-90ee-30ef5e0aeff5.jpg\" alt=\"长友气体\"\u003e\n\u003cfigcaption\u003e\u003cspan\u003e\u003cstrong\u003eCesar Cobra  |  IC 4592  |  Askar FRA400 + ZWO ASI294MC Pro\u003c\/strong\u003e\u003c\/span\u003e\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image image_resized\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/20b5fb22-e45f-4354-9924-f11379d45b96.jpg\" alt=\"长友气体\"\u003e\n\u003cfigcaption\u003e\u003cspan\u003e\u003cstrong\u003eLaurent Marzec  |  SH2-296  |  Askar FRA400 + ZWO ASI2600MC Pro\u003c\/strong\u003e\u003c\/span\u003e\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":55279782527352,"sku":"FRA400C","price":895.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/FRA400Cleftsideview.png?v=1758028254"},{"product_id":"sharpstar-15028hnt-al-hyperbolic-newtonian-astrograph","title":"Sharpstar 15028HNT-AL Hyperbolic Newtonian f\/2.8 Astrograph - Dark Clear Skies","description":"\u003ch2\u003eSharpstar 15028HNT-AL Hyperbolic Newtonian\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSharpstar 15028HNT-AL\u003c\/strong\u003e is a powerful \u003cstrong\u003e150mm f\/2.8 Hyperbolic Newtonian astrograph\u003c\/strong\u003e engineered for deep-sky astrophotography. With its fast focal ratio and built-in corrector, it delivers sharp, wide-field images with minimal distortion.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAperture:\u003c\/strong\u003e 150mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal Length:\u003c\/strong\u003e 420mm (f\/2.8)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Hyperbolic Newtonian with built-in triplet corrector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTelescope Tube:\u003c\/strong\u003e Lightweight aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocuser:\u003c\/strong\u003e Dual-speed R\u0026amp;P rigid focuser\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse:\u003c\/strong\u003e Wide-field astrophotography\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Choose the 15028HNT-AL?\u003c\/h3\u003e\n\u003cp\u003eThe 150mm aperture gathers more light, while the f\/2.8 speed allows shorter exposures. Its triplet corrector ensures pinpoint stars across full-frame sensors, making it ideal for astrophotographers using modern cameras.\u003c\/p\u003e\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDeep-sky imaging of nebulae and galaxies\u003c\/li\u003e\n\u003cli\u003eFull-frame and APS-C astrophotography\u003c\/li\u003e\n\u003cli\u003eAstrophotographers seeking a fast, wide-field Newtonian\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-0\"\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix response-transition\"\u003e\n\u003cdiv class=\"ce_detail\" data-layout=\"flow\" id=\"ce_detail-294742\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1731309015567\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox response-transition\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell response-transition\" id=\"content_ie-1731309015567-0\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1731309015572\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox response-transition\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell response-transition\" id=\"content_ie-1731309015572-0\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1731309015577\"\u003e\n\u003cdiv\u003e\u003cimg id=\"1864112154550382592\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/a4a33386-e549-412d-8240-7653c1636b73.jpg\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_line\" id=\"ie_line-1731309015827\"\u003e\n\u003cspan\u003e \u003c\/span\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"reset_style\" id=\"ie_text-1731309015832\"\u003e\n\u003cp\u003e\u003cspan\u003eThe 13028HNT-AL is a hyperbolic Newtonian reflector with a 130mm aperture and a fast F2.8 focal ratio.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e13028HNT-AL supports a 44mm full-frame image circle, and the star performance is great.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe primary mirror is made of Pyrex-alike glass PZ33. The thermal expansion coefficient is smaller than ordinary glass. The dielectric multilayer coating gives the primary mirror a highly reflective ability of up to 97%. The minor axis of the secondary mirror is 65mm, enabling sufficient illumination for full-frame imaging.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe corrector in the focuser adopts a doublet lens design, one of which is an ED glass, enhancing the power in aberration correction.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1731309015837\"\u003e\n\u003cdiv\u003e\u003cimg height=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/447eed8a-7eb4-426a-8a81-54f9cf2430e1.jpg\" width=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"reset_style\" id=\"ie_text-1731309206953\"\u003e\n\u003cp\u003e\u003cspan\u003e13028HNT-AL further enhances the structure stability of the optical axis of the primary mirror, and there are three sets of adjustment screws at the bottom of the lens tube for adjusting the angle of the primary mirror.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e13028HNT-AL improves the bracket structure of the secondary mirror to make it more stable. The secondary mirror bracket is CNC machined， integrated manufacturing with no misalignment, which ensures beautiful diffraction spikes during astrophotography.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThere is a finder base on the side of the lens tube, which provides additional mounting positions for finder scope or other astronomical accessories.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e13028HNT-AL ‘s tube ring is a hollow design, sturdy and durable. Enlarged hand screws allow users to open and close the tube ring without additional tools.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e13028HNT-AL's focuser is a dual-speed rack-and-pinion large rigid focuser, which ensures a 2cm focusing travel as much as possible within the structural limitations and can be compatible with most motorized focusers.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1731309015847\"\u003e\n\u003cdiv\u003e\u003cimg id=\"1859058669647900672\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/db909a2c-ebad-497d-ae4f-aefe945673ad.jpg\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"reset_style\" id=\"ie_text-1731309255345\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe focuser is designed with an enlarged handwheel, integrated camera rotator and locking screw, and a built-in doublet corrector. The structure of the focuser is very stable and can carry 3kg.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe back focus of 13028HNT-AL is standard 55mm (from the M48 thread).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStandard Vixen-style 290mm dovetail plate.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e13028HNT-AL is all-metal, with an aluminum lens tube and CNC machined parts.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e* The 13028HNT-AL focuser and rotator are shipped in a locked condition. Users should be sure to loosen the locking screws before initial use to avoid damage to the part.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1731309015857\"\u003e\n\u003cdiv\u003e\u003cimg height=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/cd313858-dbba-420d-ad0b-02acc2611e2d.jpg\" width=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1731309015872\"\u003e\n\u003cdiv\u003e\u003cimg id=\"1856496552149323776\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/8cd60bdc-ca5c-42ad-a06b-2dd230c04602.jpg\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-1\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cdiv\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" width=\"84.20%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003e13028HNT\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eAperture size\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e130mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e364mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal ratio\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ef\/2.8\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary mirror type\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eHyperbolic reflective mirror\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary mirror material\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ePZ33（similar to Pyrex glass）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eCorrector\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eTwo-element air-spaced refractive lenses（including one ED glass）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eMinor axis of secondary mirror\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e65mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eImage circle\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e44mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eField of view\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e6.9 degree\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eMain tube material\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eAluminum\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eMain tube outer diameter\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e174mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eMain tube length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e400mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eOTA weight\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e3.8kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eGross weight（including tube ring and dovetail plate）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e4.8kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e0.89 arc second\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eLimiting visual magnitude\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e12.3\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eBack-focus\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e55mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" width=\"84.20%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Size Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cimg id=\"1856497682344226816\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/5c49d9df-f85a-4a70-9aaf-0339050145e0.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cem\u003e  Please refer to the contents of the manual for specific optical axis alignment: \u003ca href=\"https:\/\/www.sharpstar-optics.com\/Products_1\/13028HNT-AL.html#saf-detail-4\"\u003eSHARPSTAR 13028HNT Instruction Manual \u003c\/a\u003e  \u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" width=\"84.20%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eElectronic Focuser Assembly Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cimg id=\"1864146113879519232\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/20e0d8f0-9a5a-4d70-8782-34e8b2039fb1.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-2\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eVideo\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-3\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eImages\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cimg id=\"1928333666563186688\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/f1ca84c6-bfbc-4688-881b-2c0c50b8be02.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eImran Badr  |  M8+M20  |  SHARPSTAR 13028HNT + ZWO ASI2600MM Pro\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg id=\"1863823439225040896\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/feb60d55-46ae-457d-b461-aeaa8aa4ef79.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDave James  |  NGC1333  |  SHARPSTAR 13028HNT\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg id=\"1863824104924000256\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/67bbeb2a-54e5-4701-abaf-2e243459c35e.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDave James  |  M42  |  SHARPSTAR 13028HNT\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg id=\"1863824320727789568\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/84dcbaec-42f0-486a-bf8e-2df8be77b148.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDonald Norwood  |  M45  |  SHARPSTAR 13028HNT\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg id=\"1863824420994879488\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/0a32fb65-bd19-463e-9724-337fb93b7201.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eOlivier Constans  |  M31  |  SHARPSTAR 13028HNT + ToupTek 2600MC\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":55280288334200,"sku":"15028HNT-AL","price":1795.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/15028-HNT-ALalternatesideview.png?v=1782290252"},{"product_id":"sharpstar-15028hnt-hyperbolic-newtonian-astrograph","title":"Sharpstar 15028HNT Hyperbolic Newtonian f\/2.8 Astrograph","description":"\u003ch2\u003eSharpstar 15028HNT Hyperbolic Newtonian\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSharpstar 15028HNT\u003c\/strong\u003e is a fast \u003cstrong\u003ef\/2.8 Newtonian astrograph\u003c\/strong\u003e optimized for astrophotography. With a 150mm aperture and hyperbolic mirror design, it provides excellent wide-field deep-sky imaging capabilities.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAperture:\u003c\/strong\u003e 150mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal Length:\u003c\/strong\u003e 420mm (f\/2.8)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Hyperbolic Newtonian with built-in corrector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse:\u003c\/strong\u003e Deep-sky astrophotography\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Choose the 15028HNT?\u003c\/h3\u003e\n\u003cp\u003eThis telescope offers an affordable and powerful option for wide-field astrophotography. Its fast focal ratio enables shorter exposures, while the corrector ensures edge-to-edge sharpness.\u003c\/p\u003e\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDeep-sky astrophotography\u003c\/li\u003e\n\u003cli\u003eWide-field nebulae and galaxy imaging\u003c\/li\u003e\n\u003cli\u003eAstrophotographers seeking a fast Newtonian\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-0\"\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix response-transition\"\u003e\n\u003cdiv class=\"ce_detail\" data-layout=\"flow\" id=\"ce_detail-275106\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1667527470797\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox response-transition\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell response-transition\" id=\"content_ie-1667527470797-0\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1667527470802\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox response-transition\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell response-transition\" id=\"content_ie-1667527470802-0\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1667527470807\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/69315635-87b4-48ac-a4d8-e9c858a58295.jpg\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1667527470812\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell\" id=\"content_ie-1667527470812-0\"\u003e\n\u003cdiv class=\"reset_style\" id=\"ie_text-1669371196712\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eThe launch of Sharpstar 15028HNT, a fast-focal-ratio hyperbolic Newtonian astrograph, fills up the existing service gap in domestic market. Compared with the conventional parabolic mirror, the process of producing, manufacturing and testing hyperbolic mirror is much more intricate.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe astrograph comes second to no one considering its rather fast focal ratio. The telescope is wrapped with durable carbon fiber material, artistically enhancing its appearance while sharply decreasing its weight. Sharpstar 15028HNT adopts Pyrex-alike glass, enabling the mirror to reach a quite stable reflectivity.\u003cbr\u003e \u003cbr\u003eBoth primary and secondary mirrors wear enhanced aluminum coating, thus keeping a reflective rate at more than 96%. The one-piece X-shaped strut of the secondary mirror keeps a solid and unbreakable structure. 2.5\" rack-and-pinion focuser has a stronger load capacity and can be smoothly adjusted.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe delicately pierced handle bar is completely made from CNC-manufactured aluminum, which can be used as a base for the attachment of other accessories. The new design of the telescope handle can aesthetically and mechanically cater to the demands of enthusiasts.\u003cbr\u003e \u003cbr\u003eA three-element corrector is laid in the optical path, enabling the whole optical system to better achieve full-frame imaging and control the vignette. The standard 55mm back-focus and M48×0.75 thread tapped on the focuser thoroughly prepare the telescope for most stock imaging devices and make sure the item in the objective lens can be perfectly projected onto the focal plane.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-1\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" width=\"84.20%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003e15028HNT\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eAperture size\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e150mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e420mm\/F2.8\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary mirror type\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eHyperboloid\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eCorrector type\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eTriplet air-spaced\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eShort axis diameter of secondary mirror\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e70mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFully illuminated image circle\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e44mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eActual field\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e6 degree\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eMain tube material\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eCarbon fiber\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eMain tube outer diameter\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e195mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eMain tube length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e445mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eNet weight\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e4.45kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eGross weight\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e5.95kg (including tube cap, handle, tube rings and dovetail plate)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e0.77 arc second\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocuser\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e 2.5”microdrive focusing\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eLimiting visual magnitude\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e12.7\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eBack-focus\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e55mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg id=\"1599610150930776064\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/a15f9c08-b10d-4b80-8995-7566766e47eb.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-2\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eVideo\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-3\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eImages\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cimg id=\"1599654920273166336\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/660ccbbc-031c-42dc-8384-70df577a5c57.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eM31     |     Sharpstar 150 F2.8\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg id=\"1599654920566767616\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/581437bb-9042-4369-bc28-a4288759a1b6.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eM45     |     Sharpstar 150 F2.8\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sharpstar","offers":[{"title":"Default Title","offer_id":55280293609848,"sku":"15028HNT","price":2119.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/15028-HNTfrontsideview.png?v=1782290286"},{"product_id":"sharpstar-13028hnt-al-hyperbolic-newtonian-f-2-8-astrograph","title":"Sharpstar 13028HNT-AL Hyperbolic Newtonian f\/2.8 Astrograph","description":"\u003ch2\u003eSharpstar 13028HNT-AL Hyperbolic Newtonian\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSharpstar 13028HNT-AL\u003c\/strong\u003e is a fast f\/2.8 Hyperbolic Newtonian astrograph, designed for serious astrophotographers seeking wide-field deep-sky imaging performance. With a 130mm aperture and 364mm focal length, it delivers sharp stars and minimal coma across modern imaging sensors.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAperture:\u003c\/strong\u003e 130mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal Length:\u003c\/strong\u003e 364mm (f\/2.8)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Hyperbolic Newtonian with built-in corrector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTelescope Tube:\u003c\/strong\u003e Lightweight aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocuser:\u003c\/strong\u003e Dual-speed R\u0026amp;P rigid focuser\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse:\u003c\/strong\u003e Wide-field deep-sky astrophotography\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Choose the 13028HNT-AL?\u003c\/h3\u003e\n\u003cp\u003eIts ultra-fast focal ratio of f\/2.8 makes it ideal for capturing faint nebulae and galaxies in less time. The integrated corrector provides flat fields across full-frame sensors, ensuring pinpoint stars edge-to-edge.\u003c\/p\u003e\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWide-field deep-sky imaging\u003c\/li\u003e\n\u003cli\u003eUse with full-frame and APS-C astro cameras\u003c\/li\u003e\n\u003cli\u003eAstrophotographers seeking a fast Newtonian astrograph\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-0\"\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix response-transition\"\u003e\n\u003cdiv class=\"ce_detail\" data-layout=\"flow\" id=\"ce_detail-294742\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1731309015567\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox response-transition\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell response-transition\" id=\"content_ie-1731309015567-0\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1731309015572\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox response-transition\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell response-transition\" id=\"content_ie-1731309015572-0\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1731309015577\"\u003e\n\u003cdiv\u003e\u003cimg id=\"1864112154550382592\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/a4a33386-e549-412d-8240-7653c1636b73.jpg\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_line\" id=\"ie_line-1731309015827\"\u003e\n\u003cspan\u003e \u003c\/span\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"reset_style\" id=\"ie_text-1731309015832\"\u003e\n\u003cp\u003e\u003cspan\u003eThe 13028HNT-AL is a hyperbolic Newtonian reflector with a 130mm aperture and a fast F2.8 focal ratio.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e13028HNT-AL supports a 44mm full-frame image circle, and the star performance is great.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe primary mirror is made of Pyrex-alike glass PZ33. The thermal expansion coefficient is smaller than ordinary glass. The dielectric multilayer coating gives the primary mirror a highly reflective ability of up to 97%. The minor axis of the secondary mirror is 65mm, enabling sufficient illumination for full-frame imaging.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe corrector in the focuser adopts a doublet lens design, one of which is an ED glass, enhancing the power in aberration correction.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1731309015837\"\u003e\n\u003cdiv\u003e\u003cimg height=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/447eed8a-7eb4-426a-8a81-54f9cf2430e1.jpg\" width=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"reset_style\" id=\"ie_text-1731309206953\"\u003e\n\u003cp\u003e\u003cspan\u003e13028HNT-AL further enhances the structure stability of the optical axis of the primary mirror, and there are three sets of adjustment screws at the bottom of the lens tube for adjusting the angle of the primary mirror.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e13028HNT-AL improves the bracket structure of the secondary mirror to make it more stable. The secondary mirror bracket is CNC machined， integrated manufacturing with no misalignment, which ensures beautiful diffraction spikes during astrophotography.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThere is a finder base on the side of the lens tube, which provides additional mounting positions for finder scope or other astronomical accessories.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e13028HNT-AL ‘s tube ring is a hollow design, sturdy and durable. Enlarged hand screws allow users to open and close the tube ring without additional tools.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e13028HNT-AL's focuser is a dual-speed rack-and-pinion large rigid focuser, which ensures a 2cm focusing travel as much as possible within the structural limitations and can be compatible with most motorized focusers.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1731309015847\"\u003e\n\u003cdiv\u003e\u003cimg id=\"1859058669647900672\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/db909a2c-ebad-497d-ae4f-aefe945673ad.jpg\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"reset_style\" id=\"ie_text-1731309255345\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe focuser is designed with an enlarged handwheel, integrated camera rotator and locking screw, and a built-in doublet corrector. The structure of the focuser is very stable and can carry 3kg.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe back focus of 13028HNT-AL is standard 55mm (from the M48 thread).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStandard Vixen-style 290mm dovetail plate.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e13028HNT-AL is all-metal, with an aluminum lens tube and CNC machined parts.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e* The 13028HNT-AL focuser and rotator are shipped in a locked condition. Users should be sure to loosen the locking screws before initial use to avoid damage to the part.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1731309015857\"\u003e\n\u003cdiv\u003e\u003cimg height=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/cd313858-dbba-420d-ad0b-02acc2611e2d.jpg\" width=\"100%\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1731309015872\"\u003e\n\u003cdiv\u003e\u003cimg id=\"1856496552149323776\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/8cd60bdc-ca5c-42ad-a06b-2dd230c04602.jpg\" alt=\"长友气体\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-1\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cdiv\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" width=\"84.20%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003e13028HNT\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eAperture size\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e130mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e364mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal ratio\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ef\/2.8\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary mirror type\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eHyperbolic reflective mirror\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary mirror material\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ePZ33（similar to Pyrex glass）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eCorrector\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eTwo-element air-spaced refractive lenses（including one ED glass）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eMinor axis of secondary mirror\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e65mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eImage circle\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e44mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eField of view\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e6.9 degree\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eMain tube material\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eAluminum\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eMain tube outer diameter\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e174mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eMain tube length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e400mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eOTA weight\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e3.8kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eGross weight（including tube ring and dovetail plate）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e4.8kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e0.89 arc second\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eLimiting visual magnitude\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e12.3\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eBack-focus\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e55mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" width=\"84.20%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Size Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cimg id=\"1856497682344226816\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/5c49d9df-f85a-4a70-9aaf-0339050145e0.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cem\u003e  Please refer to the contents of the manual for specific optical axis alignment: \u003ca href=\"https:\/\/www.sharpstar-optics.com\/Products_1\/13028HNT-AL.html#saf-detail-4\"\u003eSHARPSTAR 13028HNT Instruction Manual \u003c\/a\u003e  \u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" width=\"84.20%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eElectronic Focuser Assembly Diagram\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cimg id=\"1864146113879519232\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/20e0d8f0-9a5a-4d70-8782-34e8b2039fb1.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-2\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eVideo\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-3\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eImages\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cimg id=\"1928333666563186688\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/f1ca84c6-bfbc-4688-881b-2c0c50b8be02.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eImran Badr  |  M8+M20  |  SHARPSTAR 13028HNT + ZWO ASI2600MM Pro\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg id=\"1863823439225040896\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/feb60d55-46ae-457d-b461-aeaa8aa4ef79.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDave James  |  NGC1333  |  SHARPSTAR 13028HNT\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg id=\"1863824104924000256\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/67bbeb2a-54e5-4701-abaf-2e243459c35e.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDave James  |  M42  |  SHARPSTAR 13028HNT\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg id=\"1863824320727789568\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/84dcbaec-42f0-486a-bf8e-2df8be77b148.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDonald Norwood  |  M45  |  SHARPSTAR 13028HNT\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg id=\"1863824420994879488\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/0a32fb65-bd19-463e-9724-337fb93b7201.jpg\" alt=\"长友气体\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eOlivier Constans  |  M31  |  SHARPSTAR 13028HNT + ToupTek 2600MC\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sharpstar","offers":[{"title":"Default Title","offer_id":55280298131832,"sku":"13028HNT-AL","price":1495.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/13028HNT-ALleftsideview.png?v=1782290214"},{"product_id":"touptek-hope-d60","title":"ToupTek HOPE D60 – Full-Frame Planar APO Refractor (f\/4.66)","description":"\u003ch2\u003eToupTek HOPE D60 — Full-Frame Planar Apochromatic Refractor Telescope for Professional Astronomy\u003c\/h2\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull-Frame Native Field Correction:\u003c\/strong\u003e Built-in flattener delivers a 44mm image circle with perfectly round stars to the edge — no additional flattener required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast f\/4.66 Optics:\u003c\/strong\u003e High light-gathering efficiency for capturing faint nebulae and galaxies in shorter exposure times.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5-Element Planar Apochromatic Design:\u003c\/strong\u003e SD and lanthanum glass elements minimise chromatic aberration for sharp, colour-accurate stars.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecision 3\" Dual-Speed Focuser:\u003c\/strong\u003e Smooth focusing control, compatible with most electronic focus motors for automated imaging.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e360° Camera Angle Adjuster (CAA):\u003c\/strong\u003e Frame and rotate your composition without disturbing focus or back-focus spacing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Portable:\u003c\/strong\u003e Only 255mm long with retracted dew shield — ideal for travel imaging setups.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eM48 Connection (with optional M54 adapter):\u003c\/strong\u003e Wide compatibility with popular astro cameras and imaging trains.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope Main Visual 1\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_1.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope Main Visual 2\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_2.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe ToupTek HOPE D60 is designed as an excellent telescope for astrophotography while also being ideal for beginners who want to explore the universe with ease. Unlike bulky reflecting telescopes, this compact APO refractor combines portability with a professional five-element optical system, minimizing chromatic aberration and delivering diffraction-limited clarity.\u003c\/p\u003e\n\u003cp\u003eWith its fast f\/4.66 focal ratio and built-in field flattener, the HOPE D60 is a true astrograph, providing wide, flat images without the need for additional accessories. A dual-speed focuser and versatile threaded connections make setup easy for newcomers, while giving advanced users precise control for capturing galaxies, nebulae, and star fields.\u003c\/p\u003e\n\u003cp\u003eThe HOPE D60 combines beginner-friendly simplicity with professional performance, making it a telescope that grows with you throughout your astronomy journey.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope Detail Visual 3\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_3.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope Detail Visual 4\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_4.jpg\"\u003e\u003c\/div\u003e\n\u003ch2\u003e6 Advantages of HOPE D60\u003c\/h2\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope Advantages Overview\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_5.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003e1. Optical Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA 5-element planar apochromatic (PAPO) lens design:\u003c\/strong\u003e Combination of SD glass and lanthanum glass for near-zero chromatic aberration and accurate colour.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNative flat-field:\u003c\/strong\u003e Achieves full-frame field correction with no vignetting, no distortion, and round pinpoint sharp stars.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ef\/4.66 fast focal ratio:\u003c\/strong\u003e High light-gathering efficiency for capturing wide-field deep-sky objects, revealing detail even with short exposures.\u003c\/li\u003e\n  \u003ch2\u003eHow the ToupTek HOPE 60D Compares\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eToupTek HOPE 60D\u003c\/th\u003e\n\u003cth\u003eAskar FRA300 Pro\u003c\/th\u003e\n\u003cth\u003eRedCat 61\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAperture\u003c\/td\u003e\n\u003ctd\u003e60mm\u003c\/td\u003e\n\u003ctd\u003e60mm\u003c\/td\u003e\n\u003ctd\u003e61mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e280mm\u003c\/td\u003e\n\u003ctd\u003e300mm\u003c\/td\u003e\n\u003ctd\u003e335mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF-Ratio\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003ef\/4.66\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ef\/5\u003c\/td\u003e\n\u003ctd\u003ef\/5.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003e5-element Planar APO\u003c\/td\u003e\n\u003ctd\u003e5-element Petzval\u003c\/td\u003e\n\u003ctd\u003e4-element Petzval\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Flattener\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eBuilt-in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuilt-in\u003c\/td\u003e\n\u003ctd\u003eBuilt-in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage Circle\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eFull Frame (44mm)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFull Frame\u003c\/td\u003e\n\u003ctd\u003eAPS-C recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePortability\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eVery compact (255mm)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCompact\u003c\/td\u003e\n\u003ctd\u003eCompact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e2. Precise Mechanical Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Compact and Robust OTA\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4. Highly Compatible Interfaces\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5. Compatible with Electric Focusers of Multiple Brands\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6. Versatile Usage\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSuitable for deep-sky, lunar and solar photography\u003c\/li\u003e\n\u003cli\u003eNo limits on astronomical exploration and daily photography.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch2\u003eAstrophotography Work\u003c\/h2\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope Astrophotography Sample 1\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_6.jpg\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eTelescope:\u003c\/strong\u003e ToupTek Astro HOPE D60\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGuide Camera:\u003c\/strong\u003e ToupTek Astro G3M678C\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCamera:\u003c\/strong\u003e \u003ca href=\"https:\/\/darkclearskies.co.uk\/products\/touptek-skyeye-62ac\" data-enhance-link=\"\"\u003eToupTek Astro SkyEye62AC\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEquatorial Mount:\u003c\/strong\u003e iOptron CEM70\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope Astrophotography Sample 2\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_7.jpg\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eTelescope:\u003c\/strong\u003e ToupTek Astro HOPE D60\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGuide Camera:\u003c\/strong\u003e ToupTek Astro GPM462M\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCamera:\u003c\/strong\u003e \u003ca href=\"https:\/\/darkclearskies.co.uk\/products\/touptek-skyeye-62ac\" data-enhance-link=\"\"\u003eToupTek Astro SkyEye62AC\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEquatorial Mount:\u003c\/strong\u003e iOptron HAE43C\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSmart Controller:\u003c\/strong\u003e \u003ca href=\"https:\/\/darkclearskies.co.uk\/products\/touptek-stellavita-deposit\" data-enhance-link=\"\"\u003eToupTek Astro StellaVita\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eExcellent Optical Design\u003c\/h2\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch3\u003eSpot Diagram — Pinpoint Stars, High Concentration\u003c\/h3\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope Spot Diagram\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_8.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe HOPE D60 astronomical telescope achieves a central RMS spot size \u0026lt;1.1 µm and the full-frame edge RMS \u0026lt;2.3 µm, delivering exceptionally fine, concentrated star points. Multi-wavelength focus remains consistent with near-zero chromatic aberration, ensuring sharp, accurate imaging across the field of view.\u003c\/p\u003e\n\u003cp\u003eA spot diagram illustrates how light from a star is distributed on the telescope’s focal plane, visually confirming stellar precision.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eMTF Curve\u003c\/h3\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope MTF Curve\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_9.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003eMTF curve shows consistently high resolution and minimal S\/T variation across the full frame.\u003c\/p\u003e\n\u003cp\u003eHOPE D60 is a high-resolution telescope for viewing planets and galaxies, delivering accurate celestial detail reproduction with exceptional uniformity — achieving MTF \u0026gt;0.95 at 10 LP\/mm and \u0026gt;0.85 at 30 LP\/mm, with minimal Sagittal\/Tangential variation across the frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eLongitudinal Aberration\u003c\/h3\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope Longitudinal Aberration\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_10.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eExceptional Chromatic Aberration Control.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe axial aberration curve is flat, with multi-wavelength light converging on the same plane. This ensures minimal spherical and chromatic aberration, delivering sharp, colour-accurate imaging across the entire field of view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRelative Illumination\u003c\/h3\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope Relative Illumination Curve\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_11.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eEven Brightness, No Edge Vignetting\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe HOPE D60 refractor telescope maintains \u0026gt;90% relative illumination at the 44mm full-frame edge, meaning brightness difference between centre and edge is \u0026lt;10%. The curve decays smoothly, ensuring uniform brightness with no vignetting.\u003c\/p\u003e\n\u003cp\u003eRelative illumination measures brightness uniformity across the image plane, showing how light falls from the centre (0mm) to the full-frame edge (22mm).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eImage Circle and Native Flat-field Design\u003c\/h2\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope Image Circle and Back Focus\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_12.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe HOPE D60 refractor telescope delivers full-frame coverage (44mm image circle) with sharp stars across the entire field. Its built-in field flattener simplifies imaging — no extra back-focus calculation or additional flattener required. Optimal focus is achieved at 55mm connection distance.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote:\u003c\/em\u003e Due to precise focal plane and working distance engineering, use of a star diagonal for visual observation is not recommended.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope Aluminum Alloy Body\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_13.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003eHigh-strength aluminium alloy\u003c\/p\u003e\n\u003cp\u003eCNC-machined precision\u003c\/p\u003e\n\u003cp\u003eResistant to vibration \u0026amp; temperature changes\u003c\/p\u003e\n\u003cp\u003eStable focus, reliable imaging\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope Blackened Lens Tube and Retractable Hood\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_14.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003eBlackened lens tube blocks stray light for cleaner imaging\u003c\/p\u003e\n\u003cp\u003eRetractable hood enhances contrast \u0026amp; uniformity\u003c\/p\u003e\n\u003cp\u003eMagnetic positioning, quick attach, compact \u0026amp; portable\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope 3-inch Focuser\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_15.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e3-inch focuser with 30mm travel, coarse \u0026amp; fine adjustment, zero backlash\u003c\/p\u003e\n\u003cp\u003eCompatible with manual or electronic focusing\u003c\/p\u003e\n\u003cp\u003eFocus window \u0026amp; clear scale for quick, efficient setup\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope 360-degree CAA Rotation\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_16.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003eA CAA allows for 360° rotation without\u003c\/p\u003e\n\u003cp\u003edisassembling equipment\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope Handle and Dovetail Integration\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_17.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003eMulti-function handle for accessory expansion\u003c\/p\u003e\n\u003cp\u003eIntegrated dovetail bar with pre-drilled slot\u003c\/p\u003e\n\u003cp\u003eBuilt-in dovetail slot for stable, flexible setup\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope Compact Portable Length 255mm\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_18.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003eHOPE D60 is a compact portable telescope. With the dew shield retracted, it's only 255mm and easy to pack.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eHighly Compatible\u003c\/h2\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope M48 and Optional M54 Adapters\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_19.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eHOPE D60 telescope\u003c\/strong\u003e comes standard with an M48 adapter, compatible with various cameras and astrophotography accessories. An optional M54 adapter supports larger format imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope Compatibility Across Brands\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_20.jpg\"\u003e\u003c\/div\u003e\n\u003ch2\u003eDiverse Usage Scenarios\u003c\/h2\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope Diverse Usage Scenarios\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_21.jpg\"\u003e\u003c\/div\u003e\n\u003cp\u003eNo limits on astronomical exploration and daily photography.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eHOPE D60 telescope\u003c\/strong\u003e is compatible with DSLR\/mirrorless cameras, instantly transforming into a professional telephoto lens.\u003c\/p\u003e\n\u003cp\u003eConnect to an astronomical camera or use it as a telescope for astrophotography to unlock powerful deep-sky imaging.\u003c\/p\u003e\n\u003ch2\u003eDimension\u003c\/h2\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope Dimension Drawing\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_22.jpg\"\u003e\u003c\/div\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the HOPE 60D require a separate field flattener?\u003c\/strong\u003e\u003cbr\u003e\nNo — it includes a native full-frame field flattener, delivering round stars across the entire image circle.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use this telescope visually?\u003c\/strong\u003e\u003cbr\u003e\nIt is primarily an astrograph. Visual use is possible with the correct diagonal and eyepieces, but optimal performance is achieved for imaging.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat back-focus spacing is required?\u003c\/strong\u003e\u003cbr\u003e\n55mm from the rear thread — standard for most astro cameras and DSLR\/mirrorless adapters.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWill it work with electronic focusers?\u003c\/strong\u003e\u003cbr\u003e\nYes. The 3” focuser is compatible with many popular EAF systems.\u003c\/p\u003e\n\n\u003ch2\u003ePackaging\u003c\/h2\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope Packaging Contents 1\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_23.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" alt=\"HOPE D60 Telescope Packaging Contents 2\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/HOPE_D60_detail_24.jpg\"\u003e\u003c\/div\u003e","brand":"Touptek","offers":[{"title":"Default Title","offer_id":55322297926008,"sku":"Hope60","price":749.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/touptek-hope-d60-telescope-with-m54-adapter.webp?v=1760694046"},{"product_id":"sqa130-quintuplet-petzval-apo-telescope","title":"SQA130 Quintuplet Petzval APO Telescope – 130mm f\/4.8 FF \u0026 Medium-Format Astrograph","description":"\u003cp\u003e\u003cstrong\u003eThe Askar SQA130 Quintuplet Petzval APO is available to pre-order ahead of the next UK shipment, expected in late December 2025. Placing a pre-order now reserves stock from this delivery; units will ship in the order that fully paid pre-orders are received.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Introduction\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThe Askar SQA130 Quintuplet Petzval APO\u003c\/strong\u003e is a flagship 130mm f\/4.8 wide-field astrograph designed for astrophotographers who demand uncompromising image quality. Its sophisticated \u003cstrong\u003efive-element Petzval optical system\u003c\/strong\u003e—including \u003cstrong\u003etwo premium SD (Super-Dispersion) glass elements\u003c\/strong\u003e—delivers exceptional chromatic correction and a \u003cstrong\u003eperfectly flat, fully illuminated image circle\u003c\/strong\u003e without the need for external flatteners.\u003c\/p\u003e\n\u003cp\u003eThis optical architecture provides \u003cstrong\u003epinpoint stars corner-to-corner\u003c\/strong\u003e, outstanding colour fidelity, and imaging performance optimised for \u003cstrong\u003emodern full-frame (44mm) and medium-format (55mm) sensors\u003c\/strong\u003e. Whether capturing expansive nebulae or high-resolution galaxy fields, the SQA130 delivers the resolution, contrast, and uniformity demanded by serious imagers.\u003c\/p\u003e\n\u003cp\u003eWith a native \u003cstrong\u003e624mm focal length\u003c\/strong\u003e and robust rear mechanical system supporting \u003cstrong\u003eM48, M54, and M68 interfaces\u003c\/strong\u003e, the SQA130 is fully compatible with dedicated astronomy cameras, filter wheels, OAGs, tilt adjusters, rotators, and electronic focusers. A flexible \u003cstrong\u003e46–76mm back-focus range\u003c\/strong\u003e accommodates even the most complex imaging trains.\u003c\/p\u003e\n\u003cp\u003ePrecision machining throughout the OTA ensures mechanical rigidity and long-term collimation stability. The retractable dew shield, oversized focuser, and smooth focusing system all contribute to a highly refined imaging platform ideal for demanding astrophotography projects such as deep nebula structures, large mosaics, and detailed broadband galaxy imaging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c!-- IMAGE BLOCKS WITH CAPTIONS UNDER EACH IMAGE --\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv id=\"saf-detail-0\" class=\"cbox-57 p_loopItem\"\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix response-transition\"\u003e\n\u003cdiv data-layout=\"flow\" id=\"ce_detail-301698\" class=\"ce_detail\"\u003e\n\u003cdiv id=\"ie_grid-1763362489593\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox response-transition\"\u003e\n\u003cdiv id=\"content_ie-1763362489593-0\" class=\"e_box e_box-000 d_gridCell_0 p_gridCell response-transition\"\u003e\n\u003cdiv id=\"ie_fimg-1763362489598\" class=\"ie_fimg\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-sqa130-quintuplet-astrograph-product-image.jpg?v=1763466459\" alt=\"Askar SQA130 quintuplet SD glass Petzval astrograph displayed on a dark background with product branding.\"\u003e\n\u003cp class=\"image-caption\"\u003e\u003cstrong\u003eFlagship 130mm Quintuplet Astrograph\u003c\/strong\u003e\u003cbr\u003eThe SQA130 is a premium 130mm f\/4.8 Petzval APO for imagers who want observatory-class results from a single tube. Unlike typical 130mm triplets, it’s a complete, matched optical system – no add-on flattener, no spacing shims, just a flat, wide field ready for modern CMOS cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1763362489603\" class=\"ie_fimg\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-sqa130-astrograph-exceptional-star-performance.webp?v=1763466513\" alt=\"Askar SQA130 astrograph showing lens view, star performance diagrams, and specification text on a dark background.\"\u003e\n\u003cp class=\"image-caption\"\u003e\u003cstrong\u003eStars That Stay Tight to the Corners\u003c\/strong\u003e\u003cbr\u003eDual SD glass and the built-in Petzval rear group keep stars tight and round from centre to extreme corners of full-frame and larger sensors. Many triplet + flattener setups still show corner distortion – the SQA130 is engineered specifically to avoid that.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1763363795407\" class=\"ie_fimg\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1763362489658\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"Telescope component close-up technical illustration.\" height=\"100%\" width=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/318d89fa-928b-4ca1-b03c-a7cbf102d53c.jpg\"\u003e\u003c\/div\u003e\n\u003cp class=\"image-caption\"\u003e\u003cstrong\u003ePrecision CNC Build for Heavy Imaging Trains\u003c\/strong\u003e\u003cbr\u003eClose-up machining shows why the SQA130 feels solid on the mount. The OTA, rings and hardware are built to hold heavy cameras, wheels and guiders with less flex than lighter, more “visual-only” refractors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1763362489663\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"Detailed construction diagram of optical assembly components.\" height=\"100%\" width=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/638fa45b-1ae5-414d-967e-bc88ef9a707b.jpg\"\u003e\u003c\/div\u003e\n\u003cp class=\"image-caption\"\u003e\u003cstrong\u003eOptimised Internal Structure for Contrast\u003c\/strong\u003e\u003cbr\u003eThe internal layout is designed to control stray light and maintain alignment. Compared to simpler tubes with basic baffling, the SQA130’s structure helps keep backgrounds darker and stars cleaner in long integrations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_grid-1763363889360\" class=\"ie_grid\"\u003e\n\u003cdiv class=\"ie_grid\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv id=\"content_ie-1763363889360-0\" class=\"e_box e_box-000 d_gridCell_0 p_gridCell\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"content_ie-1763363889360-1\" class=\"e_box e_box-000 d_gridCell_1 p_gridCell\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1763362489668\" class=\"ie_fimg\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1763362489673\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\u003cimg alt=\"Lens group engineering diagram with optical layout.\" height=\"100%\" width=\"100%\" src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/5ace31db-10a1-477b-afde-7966f3babe42.jpg\"\u003e\u003c\/div\u003e\n\u003cp class=\"image-caption\"\u003e\u003cstrong\u003eTrue Five-Element SD Petzval Design\u003c\/strong\u003e\u003cbr\u003eThe lens-group diagram shows the front SD triplet and rear Petzval doublet. Unlike a triplet with a separate flattener, spacing here is factory-set. You get a flat field and stable performance without constantly tuning back-focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1763362489678\" class=\"ie_fimg\"\u003e\n\u003cdiv\u003e\n\u003cimg alt=\"MTF chart for the Askar SQA130 showing modulation transfer function curves with explanatory text on a white background.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-sqa130-mtf-chart.webp?v=1763469292\"\u003e \u003cimg alt=\"Relative illumination graph for the Askar SQA130 showing illumination percentage across the image field with explanatory text on a white background.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-sqa130-relative-illumination-graph.webp?v=1763469246\"\u003e\n\u003c\/div\u003e\n\u003cp class=\"image-caption\"\u003e\u003cstrong\u003eHigh Contrast \u0026amp; Even Field for Fine Detail\u003c\/strong\u003e\u003cbr\u003eThe MTF and illumination plots show strong contrast at fine spatial frequencies and smooth, high illumination across the frame. Compared to slower f\/6–f\/7 refractors, the SQA130 at f\/4.8 pulls in more signal per hour without sacrificing detail.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1763362489688\" class=\"ie_fimg\"\u003e\n\u003cimg alt=\"Spot diagram for the Askar SQA130 showing imaging quality analysis with plotted spot distributions and accompanying text on a white background.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-sqa130-spot-diagram.jpg?v=1763469198\"\u003e\n\u003cp class=\"image-caption\"\u003e\u003cstrong\u003eDiffraction-Limited Spots Across the Field\u003c\/strong\u003e\u003cbr\u003eThe spot diagrams confirm that the SQA130 keeps star images well within the Airy disk across the frame. On today’s small-pixel CMOS cameras, that translates directly into crisp galaxies, tight clusters and sharp nebula detail.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1763362489698\" class=\"ie_fimg\"\u003e\n\u003cimg alt=\"Askar SQA130 astrograph showing a labeled diagram of its components on a dark background\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-sqa130-labeled-parts-diagram.jpg?v=1763466552\"\u003e\n\u003cp class=\"image-caption\"\u003e\u003cstrong\u003eEvery Part Designed Around Imaging\u003c\/strong\u003e\u003cbr\u003eThe labelled overview highlights the retractable dew shield, robust rings, dovetail, handle and focuser. It’s laid out for stable mounting and cable management, not just visual use at the eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"ie_fimg-1763362489703\" class=\"ie_fimg\"\u003e\n\u003cimg alt=\"Askar SQA130 astrograph displaying optional all-metal handle and heightening section with close-up inserts on a dark background.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-sqa130-optional-handle-heightening-section.jpg?v=1763466602\"\u003e\n\u003cp class=\"image-caption\"\u003e\u003cstrong\u003eOptional Handle \u0026amp; Riser for Better Balance\u003c\/strong\u003e\u003cbr\u003eThe all-metal handle and heightening section improve balance on the mount and give extra space for guidescopes, mini-PCs and accessories – cleaner and more flexible than standard single-handle solutions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- content_ie-1763362489593-0 --\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv id=\"saf-detail-1\" class=\"cbox-57 p_loopItem\"\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable border=\"0\" width=\"84.20%\" cellspacing=\"0\" align=\"center\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\" class=\"responsive-title\"\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eAperture size\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e130mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e624mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal ratio\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ef\/4.8\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eObjective lens\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eQuintuplet Petzval APO (including two SD glass elements)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eTotal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e650mm (dew shield retracted)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e764mm (dew shield extended)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFormat compatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eFull-frame 44mm; upgradeable to medium-format 55mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eOTA weight\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e9.18kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eGross weight\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e11.76kg (including rings \u0026amp; dovetail)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eRear thread interfaces\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eM48 \/ M54 \/ M68 adapters\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eBack-focus distance\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e46–76mm (recommended: 55mm)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded items\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eSQA130 OTA, Oxford cloth padded case\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\" class=\"responsive-title\"\u003e\u003cstrong\u003eProduct Size Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg alt=\"Technical dimension diagram of the Askar SQA130 astrograph showing labeled measurements and component layout on a white background.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-sqa130-technical-dimensions-diagram.webp?v=1763466696\"\u003e\u003c\/figure\u003e\n\u003cp class=\"image-caption\"\u003e\u003cstrong\u003eCompact for a 130mm Imaging Workhorse\u003c\/strong\u003e\u003cbr\u003eWith a tube length of 650–764mm, the SQA130 is compact enough for quality mid-range EQ mounts while still offering serious light-gathering power. It’s easier to handle than long f\/7–f\/8 refractors of similar aperture.\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\" class=\"responsive-title\"\u003e\u003cstrong\u003eConnection Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg alt=\"Technical imaging mode diagram for the Askar SQA130 showing camera connections, adapters, and optional components on a white background.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-sqa130-imaging-mode-diagram.webp?v=1763466780\"\u003e\u003c\/figure\u003e\n\u003cp class=\"image-caption\"\u003e\u003cstrong\u003eDesigned to Drop Into Modern Imaging Rigs\u003c\/strong\u003e\u003cbr\u003eThe connection diagram shows how easily the SQA130 works with cameras, filter wheels, OAGs and rotators via M48, M54 and M68. You spend less time hunting adapters and more time collecting data.\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\" class=\"responsive-title\"\u003e\u003cstrong\u003eLocking Screw Position Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg alt=\"Technical diagram of the Askar SQA130 focuser assembly showing labeled adjustment screws and mounting points on a white background.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-sqa130-focuser-technical-diagram.webp?v=1763466739\"\u003e\u003c\/figure\u003e\n\u003cp class=\"image-caption\"\u003e\u003cstrong\u003eHeavy-Duty Focuser That Stays Put\u003c\/strong\u003e\u003cbr\u003eThe focuser diagram marks the locking and adjustment points that keep focus solid, even with heavy cameras. It’s a more imaging-oriented solution than the smaller focusers often found on purely visual 4–5\" refractors.\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\" class=\"responsive-title\"\u003e\u003cstrong\u003eElectronic Focuser Assembly Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg alt=\"Electronic focuser assembly diagram on a white background.\" src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/5dd1729a-2058-4cf6-9248-6705259bfbd4.jpg\"\u003e\u003c\/figure\u003e\n\u003cp class=\"image-caption\"\u003e\u003cstrong\u003eAutofocus Ready for Remote Imaging\u003c\/strong\u003e\u003cbr\u003eThe electronic focuser assembly diagram shows the dedicated mounting for EAF systems, making automated, temperature-compensated focusing straightforward for remote or semi-remote observatories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":55362865856888,"sku":null,"price":4695.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/askar-sqa130-quintuplet-astrograph-product-image.jpg?v=1782295105"},{"product_id":"sca310-310mm-f3-8-cassegrain-astrograph","title":"Sharpstar SCA310 310mm f\/3.8 Super Cassegrain Astrograph","description":"\u003cdiv id=\"saf-detail-0\" class=\"cbox-57 p_loopItem\"\u003e\n\u003cp style=\"font-size: 0.875rem; margin-bottom: 0.75em;\"\u003eThe Sharpstar SCA310 is a 310mm large-aperture f\/3.8 Super Cassegrain astrograph designed for serious deep-sky astrophotography. Its ultra-fast focal ratio and precision parabolic primary mirror deliver exceptional light-gathering power with sharp, round stars across the entire field.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0; margin-bottom: 0.75em;\"\u003eAn integrated 3-inch triplet corrector with ED glass produces a flat, well-corrected image circle suitable for full-frame and medium-format sensors. The carbon-fibre tube ensures excellent thermal stability during long imaging sessions, making the SCA310 ideal for high-resolution, high-efficiency imaging of faint nebulae and galaxies.\u003c\/p\u003e\n\u003ch2\u003eUltra-Fast f\/3.8 Optical Design for Deep-Sky Imaging\u003c\/h2\u003e\n\u003cfigure\u003e\u003cimg alt=\"SCA310 f\/3.8 Cassegrain astrograph displayed on a presentation stand\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sca310-astrograph-hero-presentation.jpg?v=1766994656\"\u003e\u003c\/figure\u003e\n\u003cp\u003eWith a 310mm aperture and fast f\/3.8 focal ratio, the SCA310 enables significantly shorter exposure times while revealing fine detail and vivid colour in faint deep-sky targets.\u003c\/p\u003e\n\u003cp\u003eThe high-precision parabolic primary mirror eliminates spherical aberration, delivering sharp, round star points across the field. A fused-silica spherical secondary mirror offers excellent thermal stability, folding a long optical path into a compact, rigid tube.\u003c\/p\u003e\n\u003cp\u003eEnhanced aluminium mirror coatings provide over 95% reflectivity, maximising light throughput and imaging efficiency.\u003c\/p\u003e\n\u003cfigure\u003e\u003cimg alt=\"Primary and secondary mirror system of the SCA310 astrograph with enhanced aluminium coatings\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sca310-primary-and-secondary-mirrors.jpg?v=1766994759\"\u003e\u003c\/figure\u003e\n\u003cp\u003eA rear-mounted 3-inch triplet coma corrector incorporating ED glass delivers a flat, well-corrected field from centre to edge, fully supporting full-frame and medium-format sensors with near 100% illumination.\u003c\/p\u003e\n\u003cp\u003eThe optical design requires no additional back-focus calculations, enabling fast and straightforward setup and focusing.\u003c\/p\u003e\n\u003cfigure\u003e\u003cimg alt=\"Carbon fibre optical tube of the SCA310 f\/3.8 Cassegrain astrograph\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sca310-carbon-fibre-optical-tube.jpg?v=1766994510\"\u003e\u003c\/figure\u003e\n\u003cp\u003eA hollow carry handle and multi-slot mounting system allow flexible accessory attachment. The supplied 405mm Losmandy-style dovetail ensures secure compatibility with mainstream equatorial mounts.\u003c\/p\u003e\n\u003cfigure\u003e\u003cimg alt=\"Multi-function hollow handle bar and Losmandy-style dovetail plate on the SCA310 astrograph\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sca310-hollow-handle-and-losmandy-dovetail.jpg?v=1766994605\"\u003e\u003c\/figure\u003e\n\u003cp\u003eThe 3.5-inch high-rigidity rack-and-pinion focuser provides 28mm of travel with a 1:10 dual-speed fine adjustment. A front-mounted 360° rotator prevents cable wrap during imaging.\u003c\/p\u003e\n\u003cp\u003eRear adapters (M68 \/ M54 \/ M48) ensure wide compatibility. The M48 adapter includes an integrated 2-inch filter thread for direct filter installation.\u003c\/p\u003e\n\u003cfigure\u003e\u003cimg alt=\"3.5 inch rack and pinion focuser with fine adjustment on the SCA310 astrograph\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sca310-3-5-inch-rack-and-pinion-focuser.jpg?v=1766994711\"\u003e\u003c\/figure\u003e\n\u003cp\u003eThree rear-mounted cooling fans accelerate thermal equilibrium of the primary mirror, improving image stability and overall observing efficiency.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eHow the SCA310 Compares to Other Astrograph Designs\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eDesign\u003c\/th\u003e\n\u003cth\u003eTypical Characteristics\u003c\/th\u003e\n\u003cth\u003eHow the SCA310 Differs\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eRitchey–Chrétien (RC)\u003c\/th\u003e\n\u003ctd\u003eSlower focal ratios (typically f\/8), large central obstruction, often requires additional flatteners or reducers for imaging.\u003c\/td\u003e\n\u003ctd\u003eThe SCA310 operates natively at f\/3.8 with an integrated ED triplet corrector, delivering a wider, flatter field and dramatically shorter exposure times without extra optics.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCorrected Dall–Kirkham (CDK)\u003c\/th\u003e\n\u003ctd\u003eExcellent optical correction but generally larger, heavier, and significantly more expensive systems.\u003c\/td\u003e\n\u003ctd\u003eThe SCA310 achieves high-level correction in a more compact and accessible package, optimised specifically for modern deep-sky imaging sensors.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSharpstar SCA310\u003c\/th\u003e\n\u003ctd\u003eNative f\/3.8 system with integrated ED corrector, carbon-fibre tube, active cooling, and full-frame to medium-format support.\u003c\/td\u003e\n\u003ctd\u003ePurpose-built for efficient, high-resolution astrophotography with minimal setup complexity and maximum imaging productivity.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv id=\"saf-detail-1\" class=\"cbox-57 p_loopItem\"\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eAperture\u003c\/th\u003e\n\u003ctd\u003e310mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFocal Length \/ Ratio\u003c\/th\u003e\n\u003ctd\u003e1178mm \/ f\/3.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePrimary Mirror\u003c\/th\u003e\n\u003ctd\u003eAspherical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePrimary Mirror Material\u003c\/th\u003e\n\u003ctd\u003ePyrex-equivalent glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSecondary Mirror\u003c\/th\u003e\n\u003ctd\u003eFused silica glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImage Circle\u003c\/th\u003e\n\u003ctd\u003eMedium format (55mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTube Material\u003c\/th\u003e\n\u003ctd\u003eCarbon fibre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCorrector\u003c\/th\u003e\n\u003ctd\u003eTriplet (1× ED glass)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSecondary Diameter\u003c\/th\u003e\n\u003ctd\u003e184mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTube Length\u003c\/th\u003e\n\u003ctd\u003e721mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTube Diameter\u003c\/th\u003e\n\u003ctd\u003e378mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e23.5kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRear Threads\u003c\/th\u003e\n\u003ctd\u003eM68 \/ M54 \/ M48 (M48 includes filter thread)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBack Focus\u003c\/th\u003e\n\u003ctd\u003e38–66mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eProduct Size Diagram\u003c\/h2\u003e\n\u003cfigure\u003e\u003cimg alt=\"Mechanical dimensions and technical drawings of the SCA310 Cassegrain astrograph\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sca310-mechanical-dimensions-drawing.webp?v=1766994856\"\u003e\u003c\/figure\u003e\n\u003ch2\u003eOptical Path Diagram\u003c\/h2\u003e\n\u003cfigure\u003e\u003cimg alt=\"Optical design diagram of the SCA310 f\/3.8 Cassegrain astrograph showing ray paths and ED corrector element\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sca310-optical-design-diagram.webp?v=1766994808\"\u003e\u003c\/figure\u003e\n\u003ch2\u003eRelative Illumination\u003c\/h2\u003e\n\u003cfigure\u003e\u003cimg alt=\"Vignetting diagram showing field illumination of the SCA310 f\/3.8 Cassegrain astrograph\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sca310-vignetting-diagram.webp?v=1766995002\"\u003e\u003c\/figure\u003e\n\u003cfigure\u003e\u003cimg alt=\"Vignetting diagram showing wide-field illumination performance of the SCA310 f\/3.8 Cassegrain astrograph\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sca310-vignetting-diagram-full-frame.webp?v=1766995051\"\u003e\u003c\/figure\u003e\n\u003ch2\u003eSpot Diagram\u003c\/h2\u003e\n\u003cfigure\u003e\u003cimg alt=\"Spot diagram showing optical performance of the SCA310 f\/3.8 Cassegrain astrograph across the image field\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sca310-spot-diagram-optical-performance.webp?v=1766994908\"\u003e\u003c\/figure\u003e\n\u003c\/div\u003e","brand":"Sharpstar","offers":[{"title":"Default Title","offer_id":55402829283704,"sku":"SCA310","price":7995.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sca310-astrograph-new-product-badge.webp?v=1766995099"},{"product_id":"nakoh-60gt-60mm-f6-triplet-apo-astrograph","title":"NAKOH 60GT 60mm f\/6 Triplet APO Astrograph","description":"\u003csection class=\"product-intro\"\u003e\n\u003cp class=\"txt\"\u003eA compact astrograph defined by high quality and exquisite design. The NAKOH 60GT features a triplet APO optical system incorporating one Japan-made SD glass element and one ED glass element to minimise chromatic aberration. This design delivers consistently sharp, high-definition results with a flat, clear field extending to a 44mm full-frame image circle.\u003c\/p\u003e\n\u003cp class=\"txt\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/1766372823130753.jpg?v=1772012357\" alt=\"Nakoh 60GT 0.65× Reducer attached  on a white background\"\u003e\u003c\/p\u003e\n\u003cp class=\"txt\"\u003e\u003cem data-start=\"1110\" data-end=\"1236\"\u003eNAKOH is a Japanese optical manufacturer recently expanding into triplet APO astrographs with the launch of the 60GT series.\u003c\/em\u003e\u003cbr data-start=\"1236\" data-end=\"1239\"\u003e\u003cem data-start=\"1241\" data-end=\"1386\"\u003eFounded to bring high-precision astronomy optics to advanced amateurs and astroimagers, NAKOH combines Japanese engineering with modern design.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"product-specifications con3 top_about_figure_img\"\u003e\n\u003ch2\u003e\n\u003cimg alt=\"\" src=\"https:\/\/nakoh.co.jp\/template\/defaultEN\/static\/image\/tbgl.png\"\u003e Specifications \u003cimg alt=\"\" src=\"https:\/\/nakoh.co.jp\/template\/defaultEN\/static\/image\/tbgr.png\"\u003e\n\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAperture \/ Focal Length \/ Focal Ratio\u003c\/td\u003e\n\u003ctd\u003e60mm \/ 360mm \/ f\/6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eObjective Lens\u003c\/td\u003e\n\u003ctd\u003eTriplet APO (1× SD glass [Japan], 1× ED glass)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage Circle\u003c\/td\u003e\n\u003ctd\u003eØ44mm (with Reducer \/ Flattener)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolving Power \/ Limiting Magnitude\u003c\/td\u003e\n\u003ctd\u003e1.93 arcsec \/ 10.66\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight Gathering Power\u003c\/td\u003e\n\u003ctd\u003e73× unaided eye\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Length\u003c\/td\u003e\n\u003ctd\u003e270mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e≈ 2.94kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear Interface\u003c\/td\u003e\n\u003ctd\u003e1.25″ \/ 2″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard Accessories\u003c\/td\u003e\n\u003ctd\u003e60GT OTA, Handle, Tube Rings, Dovetail Plate, 1.25″ Adapter, 2″ Adapter, Instruction Manual, Warranty Card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"optical-design con4 top_about_figure_img\"\u003e\n\u003ch2\u003e\n\u003cimg alt=\"\" src=\"https:\/\/nakoh.co.jp\/template\/defaultEN\/static\/image\/tbgl.png\"\u003e Optical \u0026amp; Design Features \u003cimg alt=\"\" src=\"https:\/\/nakoh.co.jp\/template\/defaultEN\/static\/image\/tbgr.png\"\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e The NAKOH 60GT is a triplet APO astrograph using one SD glass element and one ED glass element to achieve superior chromatic correction. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cfigure\u003e\n\u003cfigcaption class=\"pkg-text\"\u003eOptical Path Diagram\u003c\/figcaption\u003e\n\u003cimg alt=\"Nakoh 60GT optical path diagram showing light ray correction\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/1768801415213511.jpg?v=1772008613\" loading=\"lazy\"\u003e\u003c\/figure\u003e\n\u003cp\u003eBy fully utilising the anomalous dispersion properties of SD and ED glass, the 60GT significantly reduces refractive index differences across wavelengths. This effectively suppresses chromatic aberration (especially purple and green fringing) while enhancing image sharpness and contrast.\u003c\/p\u003e\n\u003ch3\u003eSpot Diagram Performance\u003c\/h3\u003e\n\u003cdiv class=\"grid-2\"\u003e\n\u003cfigure\u003e\n\u003cfigcaption class=\"pkg-text\"\u003e60GT + 1.0× Flattener\u003c\/figcaption\u003e\n\u003cimg alt=\"Nakoh 60GT spot diagram with 1.0x flattener\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/1764837271206689.jpg?v=1772008613\" loading=\"lazy\"\u003e\u003c\/figure\u003e\n\u003cfigure\u003e\n\u003cfigcaption class=\"pkg-text\"\u003e60GT + 0.65× Reducer\u003c\/figcaption\u003e\n\u003cimg alt=\"Nakoh 60GT spot diagram with 0.65x reducer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/1764837282156559.jpg?v=1772008613\" loading=\"lazy\"\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cp class=\"pkg-text\"\u003eThe horizontal axis represents the distance from the image centre, while the vertical axis represents the RMS radius of the star point. The 60GT achieves a central RMS radius of approximately 2μm and less than 2.5μm at the edge of the 44mm image circle, producing sharp, round stars across the full frame.\u003c\/p\u003e\n\u003cfigure\u003e\n\u003cfigcaption class=\"pkg-text\"\u003eLongitudinal Chromatic Aberration Curve\u003c\/figcaption\u003e\n\u003cimg alt=\"Nakoh 60GT longitudinal chromatic aberration curve\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/1764311738838998.jpg?v=1772008613\" loading=\"lazy\"\u003e\u003c\/figure\u003e\n\u003cp class=\"pkg-text\"\u003eThe longitudinal chromatic aberration graph plots wavelength against focal shift, illustrating the excellent colour correction of the optical system. The gentle, well-aligned curves indicate minimal focus shift across the visible spectrum.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"illumination-performance\"\u003e\n\u003ch2\u003eIllumination \u0026amp; Vignetting Control\u003c\/h2\u003e\n\u003cdiv class=\"grid-2\"\u003e\n\u003cfigure\u003e\u003cimg alt=\"Relative illumination curve for Nakoh 60GT\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/1764837318113610.jpg?v=1772008612\" loading=\"lazy\"\u003e\u003c\/figure\u003e\n\u003cfigure\u003e\u003cimg alt=\"Relative illumination across full-frame field for Nakoh 60GT\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/1764837336155720.jpg?v=1772008613\" loading=\"lazy\"\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cp\u003eRelative illumination curves demonstrate high brightness retention from the centre to the extreme edges of the full-frame field. The smooth decline and wavelength consistency indicate excellent vignetting control.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"optical-testing\"\u003e\n\u003ch2\u003eOptical Testing \u0026amp; Quality Control\u003c\/h2\u003e\n\u003cfigure\u003e\u003cimg alt=\"ZYGO interferometer test results for Nakoh 60GT\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/1764312604192493.jpg?v=1772008613\" loading=\"lazy\"\u003e\u003c\/figure\u003e\n\u003cp\u003eThe optical performance of the NAKOH 60GT has been rigorously verified using a ZYGO interferometer. Test results show a Strehl ratio up to 0.976, an RMS value of 0.026λ (better than λ\/38), and a PV value of 0.168λ—far exceeding the diffraction-limited standard.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\" colspan=\"2\"\u003e\u003cstrong\u003eRonchi Test\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003e\n\u003cp class=\"pkg-text\"\u003eIn Focus\u003c\/p\u003e\n\u003cimg alt=\"Nakoh 60GT Ronchi test in focus\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/1764313145695774.jpg?v=1772008611\" loading=\"lazy\"\u003e\n\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\n\u003cp class=\"pkg-text\"\u003eOut of Focus\u003c\/p\u003e\n\u003cimg alt=\"Nakoh 60GT Ronchi test out of focus\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/1764313126875470.jpg?v=1772008611\" loading=\"lazy\"\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"pkg-text\"\u003eThe Ronchi test results show smooth, symmetrical line transitions both in and out of focus, confirming excellent surface accuracy and precise optical alignment.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"image-samples con5 top_about_figure_img\"\u003e\n\u003ch2\u003eAstrophotography Samples\u003c\/h2\u003e\n\u003cfigure\u003e\n\u003cfigcaption class=\"pkg-text\"\u003eNGC 6960 (Veil Nebula) — ZWO ASI6200MM + 1.0× Flattener\u003c\/figcaption\u003e\n\u003cimg alt=\"Veil Nebula captured with Nakoh 60GT\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/1764318293214149.jpg?v=1772008615\" loading=\"lazy\"\u003e\u003c\/figure\u003e\n\u003cfigure\u003e\n\u003cfigcaption class=\"pkg-text\"\u003eM45 (Pleiades) — ZWO ASI2600MC + 0.65× Reducer\u003c\/figcaption\u003e\n\u003cimg alt=\"Pleiades star cluster captured with Nakoh 60GT\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/1764313835676363.jpg?v=1772008614\" loading=\"lazy\"\u003e\u003c\/figure\u003e\n\u003c\/section\u003e\n\u003csection class=\"mechanical-features\"\u003e\n\u003ch2\u003eMechanical Features\u003c\/h2\u003e\n\u003cfigure\u003e\u003cimg alt=\"Nakoh 60GT focuser assembly\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/1766121997126530.jpg?v=1772008614\" loading=\"lazy\"\u003e\n\u003cfigcaption class=\"pkg-text\"\u003eDual-speed 2.5″ rack-and-pinion focuser with 32mm travel and engraved scale. Compatible with most electronic focusers.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003cfigure\u003e\u003cimg alt=\"Nakoh 60GT Vixen-style dovetail plate\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/1764314254212398.jpg?v=1772008613\" loading=\"lazy\"\u003e\n\u003cfigcaption class=\"pkg-text\"\u003e230mm Vixen-style dovetail plate with standard threaded mounting holes.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/section\u003e","brand":"Nakoh","offers":[{"title":"Default Title","offer_id":55474925142392,"sku":"60GT","price":999.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/1764227275144468.jpg?v=1782290532"},{"product_id":"askar-50p-50mm-f3-8-petzval-apo-astrograph","title":"Askar 50P 50mm f\/3.8 Petzval APO Astrograph","description":"\u003csection class=\"product-intro\"\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAskar 50P\u003c\/strong\u003e is a compact, fast astrograph built for wide-field astrophotography. Its \u003cstrong\u003e50mm aperture\u003c\/strong\u003e and \u003cstrong\u003e190mm focal length\u003c\/strong\u003e deliver a bright \u003cstrong\u003ef\/3.8\u003c\/strong\u003e system, while the \u003cstrong\u003equadruplet Petzval APO\u003c\/strong\u003e design (including SD glass) helps maintain sharp stars and a well-corrected field across common imaging sensors.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"product-gallery\"\u003e\n\u003ch2\u003eProduct Images\u003c\/h2\u003e\n\u003cdiv class=\"grid-2\"\u003e\n\u003cfigure\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/5292dcab-fa56-4457-8879-1512e5618129.jpg?v=1772019187\" alt=\"Askar 50P astrograph product overview showing included components\"\u003e\u003c\/figure\u003e\n\u003cfigure\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/6813d778-e041-4259-a22d-18dbc475980c.jpg?v=1772019186\" alt=\"Askar 50P astrograph with lens hood fitted\"\u003e\u003c\/figure\u003e\n\u003cfigure\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/338d954a-38b6-4f25-b820-43c327bc4c1a.jpg?v=1772019186\" alt=\"Askar 50P showing integrated tube ring on a white background\"\u003e\u003c\/figure\u003e\n\u003cfigure\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/0cfe59cc-1766-441b-af73-f2ea07d756c9.jpg?v=1772019189\" alt=\"Askar 50P component diagram with labeled parts\"\u003e\u003c\/figure\u003e\n\u003cfigure\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/907ef3e5-4a40-46a9-b000-c0c7cc97a559.jpg?v=1772019187\" alt=\"Askar 50P optical tube overview on a white background\"\u003e\u003c\/figure\u003e\n\u003cfigure\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/55ea76d3-0a16-4cc6-9f7b-ab8ddbf67162.jpg?v=1772019186\" alt=\"Askar 50P labeled product diagram on a white background\"\u003e\u003c\/figure\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"product-specs\"\u003e\n  \u003ciframe width=\"1455\" height=\"728\" src=\"https:\/\/www.youtube.com\/embed\/PWxBtUB0jTE\" title=\"Askar 50P Promotion Video\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen\u003e\u003c\/iframe\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAperture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e190mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ef\/3.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eObjective Lens\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eQuadruplet Petzval APO (including one SD glass element)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e147mm (dew shield contracted)\u003cbr\u003e182mm (dew shield extended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupported Sensor Formats\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSupports APS-C; optimised for 1-inch sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGross Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.4kg (including tube ring and dovetail plate)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRear Thread\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM48 adapter (with M48×0.75 filter thread)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRecommended Connection Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSupports 50–65mm range (recommended 55mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIn the Box\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50P OTA, manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"diagrams\"\u003e\n\u003ch2\u003eDiagrams \u0026amp; Optical Data\u003c\/h2\u003e\n\u003cfigure\u003e\n\u003cfigcaption class=\"pkg-text\"\u003e\u003cstrong\u003eProduct Size Diagram\u003c\/strong\u003e\u003c\/figcaption\u003e\n\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/947478ac-889e-41e4-b5b3-48f57504840d_1.jpg?v=1772019187\" alt=\"Askar 50P size diagram with dimensions\"\u003e\u003c\/figure\u003e\n\u003cfigure\u003e\n\u003cfigcaption class=\"pkg-text\"\u003e\u003cstrong\u003eConnection Diagram\u003c\/strong\u003e\u003c\/figcaption\u003e\n\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/269b1107-c073-47d7-898c-06072ec8e183.jpg?v=1772019187\" alt=\"Askar 50P connection diagram showing imaging train layout\"\u003e\u003c\/figure\u003e\n\u003cfigure\u003e\n\u003cfigcaption class=\"pkg-text\"\u003e\u003cstrong\u003eOptical Path Diagram\u003c\/strong\u003e\u003c\/figcaption\u003e\n\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/ff3c7c5f-3de2-498d-b481-2540c6f22f3b_1.jpg?v=1772019187\" alt=\"Askar 50P optical path diagram with ray traces\"\u003e\u003c\/figure\u003e\n\u003cfigure\u003e\n\u003cfigcaption class=\"pkg-text\"\u003e\u003cstrong\u003eSpot Diagram\u003c\/strong\u003e\u003c\/figcaption\u003e\n\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/284a5f0d-85d4-448e-846a-259a15ba9941.jpg?v=1772019186\" alt=\"Askar 50P spot diagram showing field performance\"\u003e\u003c\/figure\u003e\n\u003c\/section\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":55475242959224,"sku":"Askar-50P","price":299.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/dfc3d26a-5388-4fd3-b183-57fe8fd4f954.png_1180xaf.png?v=1772018789"},{"product_id":"askar-sqa60-pro","title":"Askar SQA60 pro","description":"\u003ch2\u003e\u003cspan\u003eA high-performance sextuplet, air-spaced Petzval astrograph featuring SD glass elements.\u003c\/span\u003e\u003c\/h2\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-0\"\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix response-transition\"\u003e\n\u003cdiv class=\"ce_detail\" id=\"ce_detail-303161\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1773712634603\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox response-transition\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell response-transition\" id=\"content_ie-1773712634603-0\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1773712634608\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/8cc42bcf-276b-40a4-bf03-876c09591455.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1773712634613\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/21ae88eb-1f4e-4e8c-b99a-5c35a268786e.jpg\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1773712634643\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/87c4591f-f24d-4d94-9254-2bcb89309554.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1773712634663\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/ac0a0c53-3320-4069-9c6c-c3eab6d939be.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1773712634668\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/9ca317ee-112f-4eda-a15e-dd125041d915.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1773712634673\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/a35b8584-c092-4305-8b82-3fd47c90fdf1.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1773712634678\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/14a1e875-3c58-4057-864b-b7ca6cf5badf.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1773712634683\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/9cfa162b-84a7-4833-898d-9c5124fdf7c6.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1774342152732\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/c57b18a5-8ec5-48da-9ce9-6a079cb520fe.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\"\u003e\u003cvideo autoplay=\"autoplay\" loop=\"loop\" muted=\"\" playsinline=\"\"\u003e\u003c\/video\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1774342188544\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/a1257f92-2974-40ba-aa0c-ea47a1f15324.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1773712634688\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/03a9bc0f-07fb-49e3-be12-d880a47961f4.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1774342211216\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/a75cf60a-176f-4c21-a4ae-6176f4f46816.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1774342221205\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/0a1cf1b6-12b3-4fdf-813c-3f1a26b7e818.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1774342345688\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/4c988e85-3b2a-46c8-8e6a-ffe0544e925f.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-1\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" width=\"84.20%\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\" colspan=\"3\"\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eAperture size\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e60mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e276mm \u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFocal ratio\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ef\/4.6\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eObjective lens\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eSextuplet petzval APO (includes 2 pieces of SD glass )\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eTotal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e283mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFormat specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eFull frame(44mm)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eOTA weight\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e2.79kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eGross weight（including tube ring and dovetail plate）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e3.54kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eRear-end thread type\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eM48 adapter (with M48×0.75 filter thread)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eRear-end connection distance\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eSupport 41-66mm range (Recommended connection length is 55mm)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eStandard package items\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003ea SQA60pro OTA, an Oxford cloth case\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\" colspan=\"3\"\u003e\u003cstrong\u003eProduct Size Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/04be28da-fffb-420a-a0d7-44a79d493e6b.jpg\"\u003e\u003c\/figure\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\" colspan=\"3\"\u003e\u003cstrong\u003eConnection Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/4b9fac09-4531-4067-b662-0fdfbea13781.jpg\"\u003e\u003c\/figure\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\" colspan=\"3\"\u003e\u003cstrong\u003eThe  Locking Screw Position Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/3e96c7b0-e46e-485f-ae92-5b641f56933c.jpg\"\u003e\u003c\/figure\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\" colspan=\"3\"\u003e\u003cstrong\u003eElectronic Focuser Assembly Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/60cad934-ee8e-493f-a868-625b08817a4c.jpg\"\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-2\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eVideo\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cdiv class=\"video-box\" controlslist=\"nodownload\"\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/z5FaVw8LnnU?si=pKm0LtImWMgt75Ej\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-3\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eImages\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cfigure class=\"image image_resized\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/1e56440c-e98d-42a2-8a46-4c3287a2a583.jpg\"\u003e\u003c\/figure\u003e\n\u003cfigure class=\"image image_resized\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/f1de5b71-cb74-4890-afa5-c70e4f209d7b.jpg\"\u003e\n\u003cfigcaption\u003e\u003cspan\u003e\u003cstrong\u003e阿强  |  M81\u0026amp;M82  |  Askar SQA60pro + ZWO ASI2600MC\u003c\/strong\u003e\u003c\/span\u003e\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-4\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003c\/div\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":55586208874872,"sku":"ask60pro","price":1249.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/214e6e06-dfe6-4a41-973f-739b68d8b976.webp?v=1782291357"},{"product_id":"askar-131f-flat-field-quadruple-astrograph","title":"Askar 131F Flat Field quadruple Astrograph","description":"\u003ch2 class=\"e_h3-72 s_summary response-transition\"\u003e\u003cspan\u003eSelf-flattened quadruplet Astrograph which can be used for visual observing and astrophotography. \u003c\/span\u003e\u003c\/h2\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix response-transition\"\u003e\n\u003cdiv class=\"ce_detail\" id=\"ce_detail-300929\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1758692328106\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox response-transition\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell response-transition\" id=\"content_ie-1758692328106-0\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1758692328111\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox response-transition\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell response-transition\" id=\"content_ie-1758692328111-0\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1758692328116\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/3d13b4c3-a038-41cf-a53a-6cd4aeb1dde7.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-0\"\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix response-transition\"\u003e\n\u003cdiv class=\"ce_detail\" id=\"ce_detail-300929\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1758692328106\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox response-transition\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell response-transition\" id=\"content_ie-1758692328106-0\"\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1758692328111\"\u003e\n\u003cdiv class=\"ie_grid signal\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox response-transition\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell response-transition\" id=\"content_ie-1758692328111-0\"\u003e\n\u003cdiv class=\"reset_style\" id=\"ie_text-1758692328371\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eThe Askar 131F is a large-aperture telescope designed for astronomy enthusiasts, featuring a 131mm aperture, 983mm focal length, and a native F7.5 focal ratio.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt employs a quadruplet optical lens design with three elements in the front and one in the rear, including one piece of  ED glass to effectively suppress chromatic aberration. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cvideo autoplay=\"autoplay\" loop=\"loop\" muted=\"\" playsinline=\"\"\u003e\u003c\/video\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1758692328376\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/4f99667b-b292-47ac-ae31-c1634d00cf1b.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003eThe lens tube incorporates an internal baffle to block stray light, further enhancing image quality. The Askar 131F supports full-frame imaging and delivers excellent star performance across the frame.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1760342212795\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/8123866b-9cf3-4a57-ab98-ae6313f8a599.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"reset_style\" id=\"ie_text-1758692328391\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eContinuing the F series' self-flattening design, users can achieve optimal imaging without purchasing an additional flattener or calculating back focus. Simply connect the imaging accessory, achieve focus, and you're ready to shoot—streamlining the process and lowering the barrier to use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_2 p_gridCell\" id=\"content_ie-1758782785515-2\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1758782834511\"\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_grid\" id=\"ie_grid-1760342352395\"\u003e\n\u003cdiv class=\"ie_grid\"\u003e\n\u003cdiv class=\"e_box e_box-000 p_gridbox\"\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_0 p_gridCell\" id=\"content_ie-1760342352395-0\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1760342352397\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/ea686e4b-3e77-4191-9e28-772c3e113c7a.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_1 p_gridCell\" id=\"content_ie-1760342352395-1\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1760342352398\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/87588982-4146-46ea-b086-25a4c8e1a295.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"e_box e_box-000 d_gridCell_2 p_gridCell\" id=\"content_ie-1760342352395-2\"\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1760342352399\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/f3e185f0-74d5-413d-89d0-e39e0b41eee7.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"reset_style\" id=\"ie_text-1758692328406\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe telescope comes standard with a photographic extension tube featuring a built-in 2-inch filter thread and offers M48×0.75 and M54×0.75 adapters for broad compatibility with DSLR cameras and dedicated astronomy cameras, meeting diverse imaging needs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cvideo autoplay=\"autoplay\" loop=\"loop\" muted=\"\" playsinline=\"\"\u003e\u003c\/video\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStaying true to the brand philosophy, the Askar 131F balances optical performance with user experience. The lens tube is crafted with high-quality CNC machining and painted finish, continuing the F series' iconic blue-and-white color scheme for strong visual identity.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1760342443548\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/f4f9410d-06d8-4063-96d5-6d0c66a8cffd.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1758854164268\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/48a2d43f-cf6d-4c50-a39d-6b7bc5d8f6bd.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003eWhether for deep-sky imaging or visual observation, the Askar 131F is an ideal choice for advancing your astrophotography journey.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1772528364689\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/a91f8254-3b9e-4238-9ea1-896d6d9d6362.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ie_fimg\" id=\"ie_fimg-1758783510909\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/common\/design\/detail\/e4f754e4-b950-43b3-80fd-3bf07b661633.jpg\" width=\"100%\" height=\"100%\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-1\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\" colspan=\"3\"\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAperture size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003e131mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003e983mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003ef\/7.5\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eObjective lens\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eQuadruplet air-spaced APO(including one ED glass)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eImage circle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003e44mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum accessory connection (with the focuser fully retreated)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eImaging mode: \u003c\/strong\u003e  \u003cbr\u003e\u003cstrong\u003e73mm (from the base of M48×0.75 male thread）\u003c\/strong\u003e  \u003cbr\u003e\u003cstrong\u003e91mm（from the base of M54×0.75 male thread)\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eObserving mode:  \u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e \u003cbr\u003e\u003cstrong\u003e131mm（from the end of 1.25\" eyepiece holder）\u003c\/strong\u003e  \u003cbr\u003e\u003cstrong\u003e141mm（from the end of 2\" eyepiece holder）\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum accessory connection (with the focuser fully extended)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eImaging mode: \u003c\/strong\u003e  \u003cbr\u003e\u003cstrong\u003e43mm (from the base of M48×0.75 male thread）\u003c\/strong\u003e  \u003cbr\u003e\u003cstrong\u003e61mm（from the base of M54×0.75 male thread)\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eObserving mode:  \u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e \u003cbr\u003e\u003cstrong\u003e101mm（from the end of 1.25\" eyepiece holder）\u003c\/strong\u003e  \u003cbr\u003e\u003cstrong\u003e111mm（from the end of 2\" eyepiece holder）\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003e878mm(including 1.25\" adapter as dew shield contracted）\u003c\/strong\u003e  \u003cbr\u003e\u003cstrong\u003e963mm(including 1.25\" adapter as dew shield fully stretched）\u003c\/strong\u003e  \u003cbr\u003e\u003cstrong\u003e941mm(including the photographic adapter as dew shield contracted）\u003c\/strong\u003e  \u003cbr\u003e\u003cstrong\u003e1026mm(including the photographic adapter as dew shield fully stretched）\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocuser travel length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003e30mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003e7.9kg\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGross weight (Including tube ring\u0026amp;dovetail plate)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003e9.4kg\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRear-end thread type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003eM78×1-M54×0.75        \u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e \u003cbr\u003e\u003cstrong\u003eM54×0.75-M54×0.75        \u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e \u003cbr\u003e\u003cstrong\u003eM54×0.75-M48×0.75  (with M48×0.75 filter thread)\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandard package items\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003e A 131F OTA，a pair of tube rings, a handle, a 300mm Losmandy dovetail plate,a set of photographic adapters\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\"\u003e\u003cstrong\u003eProduct Size Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/8a883eef-96d8-4147-a206-fe1420dd4855.jpg\"\u003e\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/a9e9b79d-844c-4873-9502-9cc87b6f3bf8.jpg\"\u003e\u003c\/figure\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\"\u003e\u003cstrong\u003eConnection Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/dbaae082-9703-4ccc-a319-b6dedcb3e3d8.jpg\"\u003e\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\"\u003e\u003cstrong\u003eThe Locking Screw Position Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/37f4ab88-3b9a-4c66-88f2-1674920272bb.jpg\"\u003e\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\"\u003e\u003cstrong\u003eElectronic Focuser Assembly Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/1acc5643-0b25-4789-a1b5-11c889ba55e2.jpg\"\u003e\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\"\u003e\u003cstrong\u003eOptical Path Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/e9cb86dc-bee7-488c-89ef-47160eaf5769.jpg\"\u003e\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"responsive-title\"\u003e\u003cstrong\u003eSpot Diagram\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/96389167-369e-4ff4-bbd2-43768e5ac17d.jpg\"\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-2\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eVideo\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cdiv class=\"video-box\" controlslist=\"nodownload\"\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/7C15-9tI8NU?si=wJp2hAxbgth002hC\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbox-57 p_loopItem\" id=\"saf-detail-3\"\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eImages\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix\"\u003e\n\u003cfigure class=\"image image_resized\"\u003e\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/pg2024111409483993253\/cms\/image\/73368be7-37b5-4d42-ab1e-ff18d444094f.jpg\"\u003e\n\u003cfigcaption\u003e\u003cspan\u003e\u003cstrong\u003eNazmus Nasir  |  M27  |  ASKAR 131F Flat-Field\u003c\/strong\u003e\u003c\/span\u003e\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":55586213036408,"sku":"ASKR-131F","price":1998.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/80faa908-794d-41fa-bb0f-83197b177116.png_560xaf.webp?v=1782043555"},{"product_id":"nakoh-92gx-92mm-quintuplet-petzval-apo-astrograph","title":"NAKOH 92GX 92mm Quintuplet Petzval APO Astrograph Telescope","description":"\u003ch2\u003eNAKOH 92GX SD Quintuplet APO Astrograph\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eNAKOH 92GX SD Quintuplet APO Astrograph\u003c\/strong\u003e is a high-performance 92mm imaging refractor created for astrophotographers who want outstanding optical correction, dependable mechanics and straightforward integration with modern astronomy cameras. Its advanced five-element SD Quintuplet optical system incorporates permanent field correction, so no separate field flattener is required.\u003c\/p\u003e\n\n\u003cp\u003eA generous \u003cstrong\u003e55mm corrected image circle\u003c\/strong\u003e allows the 92GX to support APS-C, Full Frame and many Medium Format sensors while maintaining tight star profiles and consistent detail across the frame. This makes it equally at home on large emission nebulae, rich star fields, open clusters and carefully framed galaxy targets.\u003c\/p\u003e\n\n\u003cp\u003eThe optical system is matched by a precision CNC-machined tube assembly, a robust 3.5-inch dual-speed rack-and-pinion focuser, threaded imaging adapters and secure mounting hardware. Together, these features provide a stable platform for cooled cameras, filter wheels, off-axis guiders, electronic focusers and other accessories used in long-exposure imaging.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhy We Chose to Offer the NAKOH 92GX\u003c\/h2\u003e\n\n\u003cp\u003eAt \u003cstrong\u003eDark Clear Skies\u003c\/strong\u003e, we do not add every newly released telescope to our catalogue. We look for products that offer a genuine improvement in optical performance, mechanical design or ease of use, and that provide lasting value for serious astrophotographers.\u003c\/p\u003e\n\n\u003cp\u003eThe NAKOH 92GX immediately stood out because it combines an integrated flat-field optical design with a large 55mm corrected image circle. This removes the need for a separate flattener and avoids the spacing complications that can make high-end imaging systems difficult to configure.\u003c\/p\u003e\n\n\u003cp\u003eIts mechanical construction is equally convincing. The oversized focuser, rigid tube assembly, threaded camera connections and versatile mounting system are all designed to support modern imaging trains without unnecessary flexure or instability. Despite this, the telescope remains compact enough for portable harmonic drive mounts as well as permanent observatory installations.\u003c\/p\u003e\n\n\u003cp\u003eWe believe the NAKOH 92GX offers an excellent balance of optical quality, practical design and long-term camera compatibility, making it one of the most interesting premium astrographs currently available.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eNAKOH 92GX at a Glance\u003c\/h2\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background:#f7f7f7;\"\u003e\n\u003cth style=\"padding:10px;text-align:left;border:1px solid #ddd;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding:10px;text-align:left;border:1px solid #ddd;\"\u003eWhat It Means for You\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e92mm SD Quintuplet APO Astrograph\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eExcellent colour correction and high-contrast wide-field imaging.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eIntegrated flat-field optical design\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eNo separate field flattener or external spacing adjustment required.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e55mm corrected image circle\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eSuitable for APS-C, Full Frame and many Medium Format sensors.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e3.5-inch dual-speed rack-and-pinion focuser\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eSmooth focusing and strong support for heavier imaging equipment.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eRotatable focuser\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eStraightforward framing without disturbing the rest of the imaging train.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eThreaded imaging adapter system\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eImproved rigidity with reduced risk of tilt and flexure.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eCNC tube rings and carry handle\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eSecure mounting for guide scopes, mini PCs and control accessories.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e300mm Losmandy-style dovetail\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eStable mounting and easier balancing on larger payload systems.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eElectronic focuser compatible\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eReady for automated focusing and remote imaging.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eNAKOH 92GX Technical Specifications\u003c\/h2\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003cth style=\"padding:12px;text-align:left;border:1px solid #ddd;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding:12px;text-align:left;border:1px solid #ddd;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eAperture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e92mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eOptical design\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eFive-element SD Quintuplet APO astrograph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eField correction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003ePermanently integrated flat-field optical design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eCorrected image circle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e55mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eSupported sensor formats\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eAPS-C, Full Frame and many Medium Format sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eFocuser\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e3.5-inch dual-speed rack-and-pinion focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eFocuser rotation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eRotatable for camera framing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eElectronic focusing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eCompatible with electronic focuser systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eCamera connection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eFour-piece threaded imaging adapter system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eFilter compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eIntegrated 2-inch filter thread within the M48 adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eMounting plate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e300mm CNC-machined Losmandy-style dovetail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eTube support\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eCNC-machined tube rings with integrated carry handle and accessory mounting points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWho Is the NAKOH 92GX Ideal For?\u003c\/h2\u003e\n\n\u003cp\u003eThe NAKOH 92GX is aimed at astrophotographers who want premium wide-field performance without the extra complexity of separate flatteners and spacing-sensitive accessories. It is particularly well suited to:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eDeep-sky astrophotography\u003c\/li\u003e\n\u003cli\u003eWide-field nebula imaging\u003c\/li\u003e\n\u003cli\u003eGalaxy and star cluster photography\u003c\/li\u003e\n\u003cli\u003eAPS-C, Full Frame and many Medium Format cameras\u003c\/li\u003e\n\u003cli\u003ePortable harmonic drive mount systems\u003c\/li\u003e\n\u003cli\u003ePermanent observatory installations\u003c\/li\u003e\n\u003cli\u003eBroadband and narrowband imaging\u003c\/li\u003e\n\u003cli\u003eUsers building a premium, integrated imaging system\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhy Choose the NAKOH 92GX Over a Traditional Triplet APO?\u003c\/h2\u003e\n\n\u003cp\u003eMany premium apochromatic refractors use a triplet objective combined with a separate field flattener or reducer to achieve good edge performance for astrophotography. While this approach can produce excellent results, it also introduces additional optical components, precise back-focus requirements and extra points of adjustment within the imaging train.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eNAKOH 92GX SD Quintuplet APO Astrograph\u003c\/strong\u003e takes a different approach. Its advanced five-element optical system incorporates the field correction directly into the telescope, creating a permanently optimised imaging platform that is ready for modern astronomy cameras straight from the box. There is no need to purchase a dedicated field flattener, and no concern about achieving the exact optical spacing often required by external correctors.\u003c\/p\u003e\n\n\u003cp\u003eThis integrated design offers more than convenience. By reducing the number of optical interfaces and eliminating spacing errors, the 92GX provides consistently sharp stars, excellent colour correction and outstanding edge performance across a large \u003cstrong\u003e55mm corrected image circle\u003c\/strong\u003e. Whether using APS-C, Full Frame or many Medium Format sensors, astrophotographers can concentrate on capturing data rather than configuring optics.\u003c\/p\u003e\n\n\u003cp\u003eThe result is a telescope that combines premium optical quality with a streamlined imaging workflow, making it equally attractive to experienced astrophotographers and those investing in their first dedicated astrograph.\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin-top:20px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003cth style=\"padding:12px;text-align:left;border:1px solid #ddd;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding:12px;text-align:center;border:1px solid #ddd;\"\u003eTraditional Triplet APO\u003c\/th\u003e\n\u003cth style=\"padding:12px;text-align:center;border:1px solid #ddd;\"\u003eNAKOH 92GX SD Quintuplet\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eField correction\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;border:1px solid #ddd;\"\u003eRequires external flattener\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;border:1px solid #ddd;\"\u003eIntegrated into the optical system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eBack-focus setup\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;border:1px solid #ddd;\"\u003eCritical spacing required\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;border:1px solid #ddd;\"\u003eSimplified threaded imaging train\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eImage circle\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;border:1px solid #ddd;\"\u003eVaries with corrector\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;border:1px solid #ddd;\"\u003e55mm corrected image circle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eLarge-sensor compatibility\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;border:1px solid #ddd;\"\u003eDepends on flattener\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;border:1px solid #ddd;\"\u003eAPS-C, Full Frame and many Medium Format cameras\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eCamera installation\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;border:1px solid #ddd;\"\u003eAdditional optical accessories required\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;border:1px solid #ddd;\"\u003eReady for imaging with supplied adapters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eOptical optimisation\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;border:1px solid #ddd;\"\u003eObjective and flattener designed separately\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;border:1px solid #ddd;\"\u003eComplete optical system designed as one unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eFor astrophotographers seeking exceptional image quality with fewer variables to manage, the NAKOH 92GX represents a modern integrated astrograph designed to make the transition from setup to imaging as straightforward as possible while delivering outstanding optical performance.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eIs the NAKOH 92GX Right for You?\u003c\/h2\u003e\n\n\u003cp\u003eThe NAKOH 92GX is an excellent choice for astrophotographers who want the portability of a compact refractor together with the large corrected field and mechanical strength normally associated with more substantial imaging systems.\u003c\/p\u003e\n\n\u003cp\u003eCompared with a smaller 70mm or 80mm astrograph, its 92mm aperture offers greater light-gathering ability and resolution while remaining practical for portable use. Compared with many larger 100mm-class refractors, the shorter and more compact tube places less leverage on the mount, helping to simplify balancing and guiding.\u003c\/p\u003e\n\n\u003cp\u003eIt is particularly well suited to users who:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eWant to use APS-C, Full Frame or larger astronomy cameras\u003c\/li\u003e\n\u003cli\u003ePrefer an integrated optical design without a separate field flattener\u003c\/li\u003e\n\u003cli\u003eNeed a rigid focuser for cooled cameras, filter wheels and off-axis guiders\u003c\/li\u003e\n\u003cli\u003ePlan to automate focusing and image acquisition\u003c\/li\u003e\n\u003cli\u003eWant one telescope for nebulae, star fields, galaxies and clusters\u003c\/li\u003e\n\u003cli\u003eRequire a system suitable for portable or permanent installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eA conventional triplet refractor may still suit users who prioritise visual observing or want to choose between several reducers and flatteners. The NAKOH 92GX is aimed more directly at astrophotographers who value a fully integrated, large-sensor imaging platform.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eRecommended Accessories for the NAKOH 92GX\u003c\/h2\u003e\n\n\u003cp\u003eThe NAKOH 92GX can form the centre of a complete automated astrophotography system. The best accessories will depend on your camera, mount and preferred imaging method, but the following categories are particularly relevant.\u003c\/p\u003e\n\n\u003ch3\u003eLarge-Sensor Astronomy Cameras\u003c\/h3\u003e\n\n\u003cp\u003eThe telescope's 55mm corrected image circle makes it suitable for APS-C, Full Frame and many Medium Format cameras. Both one-shot colour and monochrome cameras can be used for broadband or narrowband imaging.\u003c\/p\u003e\n\n\u003ch3\u003eElectronic Focuser\u003c\/h3\u003e\n\n\u003cp\u003eAn electronic focuser allows the telescope to refocus automatically as temperature changes and can support unattended imaging routines throughout the night.\u003c\/p\u003e\n\n\u003ch3\u003eFilter Wheel or Filter Drawer\u003c\/h3\u003e\n\n\u003cp\u003eMonochrome cameras can be paired with a motorised filter wheel, while one-shot colour systems may use a threaded filter drawer or the integrated 2-inch filter thread within the supplied M48 adapter.\u003c\/p\u003e\n\n\u003ch3\u003eOff-Axis Guider\u003c\/h3\u003e\n\n\u003cp\u003eAn off-axis guider can provide precise guiding without adding a separate guide scope. This is particularly useful when using heavier cameras or longer exposures.\u003c\/p\u003e\n\n\u003ch3\u003eHarmonic Drive or Equatorial Mount\u003c\/h3\u003e\n\n\u003cp\u003eThe compact optical tube is well suited to many modern harmonic drive and equatorial mounts. Always calculate the total imaging payload, including the camera, filters, guider, electronic focuser and control equipment, before selecting a mount.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNeed help choosing compatible accessories?\u003c\/strong\u003e Dark Clear Skies can help you plan the complete imaging train, including camera connections, filters, guiding, focusing and mounting.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003ePrecision SD Quintuplet Optical Design\u003c\/h2\u003e\n\n\u003cp\u003eAt the heart of the NAKOH 92GX is an advanced \u003cstrong\u003efive-element SD Quintuplet optical system\u003c\/strong\u003e. The design combines premium SD and ED glass elements with permanent field correction, delivering excellent colour control and a flat focal plane within a single, integrated optical assembly.\u003c\/p\u003e\n\n\u003cp\u003eThis approach avoids the compromises often associated with adding an external field flattener to a conventional doublet or triplet. Because the correction is built into the telescope, there is no separate flattener spacing to calculate and fewer opportunities for alignment errors within the imaging train.\u003c\/p\u003e\n\n\u003cp\u003eThe result is a clean, high-contrast image with tightly focused stars and minimal colour fringing, even when paired with high-resolution CMOS cameras using small pixels.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg alt=\"Optical design diagram of the NAKOH 92GX SD Quintuplet APO Astrograph showing the advanced five-element lens configuration with premium SD and ED glass elements. The ray-tracing illustration demonstrates precise light convergence for exceptional colour correction, flat-field performance, and pinpoint stars across a 55mm image circle suitable for full-frame and medium-format astrophotography.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/nakoh-92gx-sd-quintuplet-optical-design-diagram.jpg?v=1785099684\"\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eA Flat, Corrected Field for Large Imaging Sensors\u003c\/h2\u003e\n\n\u003cp\u003eModern astronomy cameras place increasingly high demands on telescope optics. Larger sensors and smaller pixels make field curvature, corner distortion and poor illumination far easier to see. The NAKOH 92GX has been developed to meet those demands with a fully corrected \u003cstrong\u003e55mm image circle\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eThis gives the telescope the flexibility to work with compact APS-C cameras, conventional Full Frame sensors and many Medium Format systems. Across these formats, the optical design is intended to maintain consistent star shape and usable detail from the centre towards the edge of the field.\u003c\/p\u003e\n\n\u003cp\u003eFor astrophotographers investing in larger sensors, this broader corrected area provides valuable room for future camera upgrades without immediately outgrowing the telescope.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg alt=\"Field coverage demonstration captured with the NAKOH 92GX SD Quintuplet APO Astrograph, illustrating the fully illuminated 44 mm image circle with APS-C sensor overlay and exceptional edge-to-edge image quality for deep-sky astrophotography.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/nakoh-92gx-44mm-full-frame-field-coverage.jpg?v=1785098098\"\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003ePinpoint Stars Across the Entire Sensor\u003c\/h2\u003e\n\n\u003cp\u003eCentral sharpness alone is not enough for serious astrophotography. The more demanding test is whether stars remain round and well controlled in the outer regions of the image, where field curvature and off-axis aberrations normally become most obvious.\u003c\/p\u003e\n\n\u003cp\u003eThe NAKOH 92GX is designed to preserve compact, symmetrical star profiles across the usable imaging field. This allows larger sensors to be used more effectively and reduces the need to crop away distorted corners during processing.\u003c\/p\u003e\n\n\u003cp\u003eThe centre-and-corner comparison below illustrates the consistency of the optical correction, showing how the telescope maintains clean stellar definition across the frame.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg alt=\"100% crop comparison from the centre and corners of the image captured with the NAKOH 92GX SD Quintuplet APO Astrograph, demonstrating exceptional edge-to-edge sharpness, round stars and excellent field correction across the entire imaging circle.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/nakoh-92gx-edge-to-edge-star-performance.jpg?v=1785098314\"\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eCompact Performance Under Dark Skies\u003c\/h2\u003e\n\n\u003cp\u003eThe NAKOH 92GX combines a substantial imaging specification with a relatively compact optical tube. Its 92mm aperture offers a useful balance of light gathering, resolution and portability, making it easier to transport than many larger observatory-class refractors.\u003c\/p\u003e\n\n\u003cp\u003eThe shorter tube also reduces the moment arm placed on the mount. This can improve balance, guiding and overall stability, especially when the telescope is paired with a modern harmonic drive or compact equatorial mount.\u003c\/p\u003e\n\n\u003cp\u003eWhether used from a permanent observatory, a back garden or a remote dark-sky site, the 92GX is designed to deliver repeatable performance without requiring an oversized mounting system.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg alt=\"The NAKOH 92GX SD Quintuplet APO Astrograph mounted on a ZWO AM5 harmonic mount during a night-time observing session, demonstrating its portability and exceptional performance for both visual astronomy and astrophotography under dark skies.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/nakoh-92gx-under-the-stars-observing.jpg?v=1785097243\"\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eSpot Diagram Performance\u003c\/h2\u003e\n\n\u003cp\u003eA spot diagram shows how closely a telescope focuses rays of light at different positions across the image field. It is one of the most useful ways to assess whether an optical system can maintain small, controlled star images beyond the centre of the sensor.\u003c\/p\u003e\n\n\u003cp\u003eThe NAKOH 92GX spot diagram indicates tightly managed spot sizes from the optical axis towards the outer field. This is particularly important for cameras with small pixels, where even modest aberrations can become visible as bloated or elongated stars.\u003c\/p\u003e\n\n\u003cp\u003eConsistent spot control helps preserve fine stellar detail, improves the quality of the raw data and reduces the amount of corrective processing required later.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg alt=\"Optical spot diagram for the NAKOH 92GX SD Quintuplet APO Astrograph demonstrating image quality across the entire 44mm full-frame image circle. The chart plots RMS and geometric spot radius from the centre to the edge of the field, with corresponding spot diagrams illustrating consistently well-controlled star shapes for high-resolution astrophotography on full-frame cameras.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/nakoh-92gx-spot-diagram-full-frame-optical-performance.jpg?v=1785099547\"\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eStrong Illumination Across Large Sensors\u003c\/h2\u003e\n\n\u003cp\u003eA large corrected field must also be well illuminated. The relative illumination chart shows how effectively the NAKOH 92GX carries light towards the outer edge of its image circle, helping to limit excessive corner darkening on Full Frame and larger sensors.\u003c\/p\u003e\n\n\u003cp\u003eFlat-field calibration will still remain an important part of any serious imaging workflow, but a well-illuminated optical system produces cleaner data and allows calibration frames to work more effectively.\u003c\/p\u003e\n\n\u003cp\u003eThe 55mm image circle also provides useful headroom for larger cameras, filter wheels and off-axis guiding systems, making the telescope a strong option for users planning future upgrades.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg alt=\"Relative illumination chart for the NAKOH 92GX SD Quintuplet APO Astrograph showing exceptionally even light transmission from the centre of the field to the edge of a 55mm image circle. The graph demonstrates excellent illumination across full-frame sensors and extends coverage to medium-format cameras, ensuring minimal vignetting for wide-field astrophotography.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/nakoh-92gx-relative-illumination-chart-55mm-image-circle.jpg?v=1785099618\"\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eReal-World Deep-Sky Imaging\u003c\/h2\u003e\n\n\u003cp\u003eCharts and diagrams are useful, but the true measure of an astrograph is the quality of the images it produces under the night sky. The NAKOH 92GX is designed to reveal faint deep-sky structure while retaining natural star colour, fine contrast and consistent detail across the frame.\u003c\/p\u003e\n\n\u003cp\u003eIts combination of SD glass, integrated field correction and broad sensor compatibility makes it suitable for both broadband and narrowband imaging. It can be paired with one-shot colour or monochrome cameras to cover a wide range of targets throughout the year.\u003c\/p\u003e\n\n\u003ch3\u003eM81 and M82 – Wide-Field Galaxy Imaging\u003c\/h3\u003e\n\n\u003cp\u003eM81 and M82 provide a demanding test of both contrast and resolution. The field contains bright galactic cores, faint outer structure and a dense background of stars, making optical inconsistencies easy to identify.\u003c\/p\u003e\n\n\u003cp\u003eThe NAKOH 92GX frames both galaxies comfortably while preserving the finer dust-lane structure and surrounding star field. The image demonstrates how the integrated field correction keeps stars compact and well controlled away from the centre.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg alt=\"Astrophotography sample captured with the NAKOH 92GX SD Quintuplet APO Astrograph, featuring the M81 Bode's Galaxy and M82 Cigar Galaxy with pinpoint stars and excellent edge-to-edge sharpness across a wide field of view.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/nakoh-92gx-m81-m82-galaxies-astrophotography-sample.jpg?v=1785097167\"\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eNGC 4565 – Fine Detail and Contrast\u003c\/h3\u003e\n\n\u003cp\u003eNGC 4565, the Needle Galaxy, is an excellent target for evaluating contrast and fine detail. Its narrow edge-on structure and prominent central dust lane reward precise optics and careful focusing.\u003c\/p\u003e\n\n\u003cp\u003eThe example below shows the telescope resolving the galaxy's slender profile while retaining clean star shapes throughout the surrounding field. Good colour correction also helps minimise distracting halos around brighter stars.\u003c\/p\u003e\n\n\u003cp\u003eThis performance makes the 92GX suitable not only for wide nebulae, but also for galaxies, clusters and smaller deep-sky objects that benefit from strong contrast and dependable optical correction.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg alt=\"Astrophotography sample captured with the NAKOH 92GX SD Quintuplet APO Astrograph, showcasing the Needle Galaxy (NGC 4565) with pinpoint stars, excellent contrast and outstanding edge-to-edge sharpness across the entire field of view.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/nakoh-92gx-ngc4565-needle-galaxy-sample.jpg?v=1785098179\"\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eMechanical Engineering for Modern Imaging Systems\u003c\/h2\u003e\n\n\u003cp\u003eHigh-quality optics need equally dependable mechanics. The NAKOH 92GX uses a precision CNC-machined aluminium tube and an oversized 3.5-inch rack-and-pinion focuser to provide the rigidity required for modern astrophotography equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe structure is intended to minimise movement between the optical tube, focuser and camera during long exposures. This is particularly important when the imaging train includes a cooled camera, motorised filter wheel, off-axis guider, electronic focuser or rotator.\u003c\/p\u003e\n\n\u003cp\u003eThe result is a solid, integrated platform that supports accurate focus, stable alignment and repeatable performance throughout extended imaging sessions.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/nakoh-92gx-right-side-profile-astrograph.jpg?v=1785095450\" alt=\"Right-side profile of the NAKOH 92GX 92mm Quintuplet Petzval APO Astrograph Telescope showing the precision focuser, CNC tube assembly and integrated carry handle.\"\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003ePrecision Dual-Speed Focusing\u003c\/h2\u003e\n\n\u003cp\u003eThe 92GX is fitted with a substantial 3.5-inch rack-and-pinion focuser offering both coarse and fine adjustment. This provides the travel needed for initial setup together with the sensitivity required for accurate manual focusing.\u003c\/p\u003e\n\n\u003cp\u003eThe supplied focus knob cap improves grip and comfort during manual operation, while the focuser remains suitable for integration with popular Electronic Automatic Focusers. This allows the telescope to move easily from a manual setup to fully automated focusing routines.\u003c\/p\u003e\n\n\u003cp\u003eIts robust construction also helps maintain camera alignment under load, reducing the risk of tilt when heavier accessories are fitted.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/nakoh-92gx-fine-focus-adjustment-knob-cap.jpg?v=1785099451\" alt=\"NAKOH 92GX SD Quintuplet APO Astrograph highlighting the supplied fine focus adjustment knob cap. The image demonstrates how the cap fits over the dual-speed focuser's fine focus knob to improve manual focusing comfort while remaining compatible with electronic autofocus (EAF) motor installation when required.\"\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003e300mm Losmandy-Style Dovetail Included\u003c\/h2\u003e\n\n\u003cp\u003eA secure connection between telescope and mount is essential for reliable tracking and guiding. The NAKOH 92GX is supplied with a 300mm CNC-machined Losmandy-style dovetail plate, providing a broad and rigid mounting surface.\u003c\/p\u003e\n\n\u003cp\u003eThe longer plate also gives greater freedom when balancing a loaded imaging system. This is especially useful when heavier cameras, filter wheels or rear-mounted accessories alter the telescope's centre of gravity.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/nakoh-92gx-300mm-losmandy-dovetail-plate-included.jpg?v=1785098573\" alt=\"NAKOH 92GX SD Quintuplet APO Astrograph supplied with a CNC-machined 300mm Losmandy-style dovetail plate. The image highlights the telescope mounted on the included dovetail, with an inset showing the plate's precision-machined design for secure attachment to equatorial and harmonic mounts.\"\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eCNC Tube Rings and Integrated Accessory Mounting\u003c\/h2\u003e\n\n\u003cp\u003eThe precision-machined tube rings provide a rigid support for the optical tube while also creating multiple mounting points for additional equipment. Guide scopes, mini PCs, control hubs and other accessories can be positioned securely without relying on improvised brackets.\u003c\/p\u003e\n\n\u003cp\u003eThe integrated carry handle doubles as an accessory bridge, helping users build a cleaner and better-balanced imaging system. Oversized adjustment knobs also make the rings easier to handle in cold conditions or while wearing gloves.\u003c\/p\u003e\n\n\u003cp\u003eThis arrangement helps reduce cable strain, keeps accessories aligned with the telescope and makes the complete setup easier to transport and manage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/nakoh-92gx-tube-rings-handle-accessory-mounting-features.jpg?v=1785098712\" alt=\"Feature overview of the NAKOH 92GX SD Quintuplet APO Astrograph highlighting the CNC-machined tube rings and carry handle. Callouts show the lightweight hollow ring design, enlarged locking thumbscrews for easy adjustment, multiple threaded mounting points for accessories such as guide scopes and cameras, and the detachable carry handle with additional mounting holes for flexible system expansion.\"\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eFour-Piece Threaded Imaging Adapter System\u003c\/h2\u003e\n\n\u003cp\u003eThe NAKOH 92GX includes a four-piece threaded adapter set for building a secure and repeatable imaging train. Threaded connections are preferable to compression fittings when supporting larger cameras because they reduce flexure and help maintain accurate sensor alignment.\u003c\/p\u003e\n\n\u003cp\u003eThe supplied components support a range of camera configurations and include an M48 adapter with an integrated 2-inch filter thread. This provides additional flexibility for broadband, narrowband and light-pollution filters.\u003c\/p\u003e\n\n\u003cp\u003eCombined with the large focuser, the adapter system allows the telescope to support everything from DSLR and mirrorless cameras to cooled astronomy cameras and motorised filter wheel assemblies.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/nakoh-92gx-four-piece-imaging-adapter-set.jpg?v=1785099177\" alt=\"Four-piece imaging adapter set supplied with the NAKOH 92GX SD Quintuplet APO Astrograph. Includes an M48 camera adapter with integrated 2-inch filter thread, M68 extension tube, M84 to M68 adapter and matching threaded adapter for flexible camera spacing. The image also shows the adapter set installed on the 3.5-inch rack-and-pinion focuser, providing a secure threaded imaging train for full-frame astrophotography cameras.\"\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eDimensions and System Planning\u003c\/h2\u003e\n\n\u003cp\u003eThe technical drawing below shows the overall tube dimensions, focuser assembly, mounting hardware and supplied accessories. This is useful when planning observatory clearances, transport cases, pier spacing or the position of cameras and control equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe combination of compact dimensions, large-format optics and substantial mechanical components makes the NAKOH 92GX suitable for both experienced imagers and users moving into a more advanced, fully integrated astrophotography system.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/nakoh-92gx-technical-dimensional-drawing.jpg?v=1785098408\" alt=\"Comprehensive technical dimensional drawing of the NAKOH 92GX SD Quintuplet APO Astrograph, showing overall dimensions, optical tube assembly, focuser, mounting rings, dovetail plate, adapter system and key mechanical measurements for installation and accessory compatibility.\"\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhy Choose the NAKOH 92GX?\u003c\/h2\u003e\n\n\u003cp\u003eThe NAKOH 92GX brings together premium SD optics, permanent field correction, a large 55mm image circle and a carefully engineered mechanical platform. It is designed for astrophotographers who want a capable wide-field refractor that can support modern large-sensor cameras without requiring a separate flattener.\u003c\/p\u003e\n\n\u003cp\u003eIts compact format makes it practical for portable use, while the large focuser, Losmandy dovetail, threaded adapters and versatile tube-ring system give it the strength and flexibility required for permanent installations.\u003c\/p\u003e\n\n\u003cp\u003eWhether imaging expansive nebulae, rich star fields, galaxies or clusters, the 92GX provides the colour correction, field consistency and mechanical stability needed to produce high-quality deep-sky data night after night.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhy Astrophotographers Choose Dark Clear Skies\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eUK astronomy specialist\u003c\/li\u003e\n\u003cli\u003eExpert advice before and after purchase\u003c\/li\u003e\n\u003cli\u003eHelp selecting compatible cameras and accessories\u003c\/li\u003e\n\u003cli\u003eSupport configuring complete imaging systems\u003c\/li\u003e\n\u003cli\u003eCarefully selected premium astronomy equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eDoes the NAKOH 92GX require a separate field flattener?\u003c\/h3\u003e\n\u003cp\u003eNo. Field correction is permanently integrated into the five-element optical design, so a separate field flattener is not required.\u003c\/p\u003e\n\n\u003ch3\u003eWhat camera sensor sizes can the NAKOH 92GX support?\u003c\/h3\u003e\n\u003cp\u003eThe telescope has a 55mm corrected image circle and is suitable for APS-C, Full Frame and many Medium Format astronomy cameras.\u003c\/p\u003e\n\n\u003ch3\u003eIs the NAKOH 92GX suitable for Full Frame cameras?\u003c\/h3\u003e\n\u003cp\u003eYes. Its corrected field comfortably covers a conventional Full Frame sensor while maintaining controlled star profiles across the imaging area.\u003c\/p\u003e\n\n\u003ch3\u003eCan it be used with Medium Format cameras?\u003c\/h3\u003e\n\u003cp\u003eThe 55mm image circle supports many Medium Format sensors, although compatibility should always be confirmed against the exact sensor dimensions and imaging-train configuration.\u003c\/p\u003e\n\n\u003ch3\u003eDoes the telescope require precise flattener spacing?\u003c\/h3\u003e\n\u003cp\u003eNo external flattener spacing is required because the field correction is built into the optical system. The camera and accessories must still be connected securely and positioned within the available focuser travel.\u003c\/p\u003e\n\n\u003ch3\u003eCan it be used with an electronic focuser?\u003c\/h3\u003e\n\u003cp\u003eYes. The 3.5-inch dual-speed rack-and-pinion focuser is suitable for integration with electronic focusing systems, making the telescope well suited to automated imaging.\u003c\/p\u003e\n\n\u003ch3\u003eIs the focuser rotatable?\u003c\/h3\u003e\n\u003cp\u003eYes. The rotatable focuser allows the camera orientation to be adjusted for framing without disturbing the rest of the imaging system.\u003c\/p\u003e\n\n\u003ch3\u003eCan the NAKOH 92GX be used with a filter wheel?\u003c\/h3\u003e\n\u003cp\u003eYes. Its substantial focuser and threaded adapter system are intended to support cooled cameras, motorised filter wheels, off-axis guiders and other imaging accessories.\u003c\/p\u003e\n\n\u003ch3\u003eCan 2-inch filters be used?\u003c\/h3\u003e\n\u003cp\u003eYes. The supplied M48 adapter incorporates a 2-inch filter thread for compatible mounted filters.\u003c\/p\u003e\n\n\u003ch3\u003eIs the NAKOH 92GX suitable for narrowband imaging?\u003c\/h3\u003e\n\u003cp\u003eYes. Its excellent colour correction, flat field and threaded imaging system make it suitable for both broadband and narrowband astrophotography.\u003c\/p\u003e\n\n\u003ch3\u003eIs it suitable for harmonic drive mounts?\u003c\/h3\u003e\n\u003cp\u003eYes. Its compact optical tube makes it a strong match for many modern harmonic drive mounts, provided the complete imaging payload remains within the mount manufacturer's recommended limits.\u003c\/p\u003e\n\n\u003ch3\u003eCan it be used with DSLR or mirrorless cameras?\u003c\/h3\u003e\n\u003cp\u003eYes. The supplied threaded adapter system can support DSLR and mirrorless imaging configurations, although the correct camera-specific adapter will still be required.\u003c\/p\u003e\n\n\u003ch3\u003eDoes it include tube rings and a mounting plate?\u003c\/h3\u003e\n\u003cp\u003eYes. The telescope includes CNC-machined tube rings, an integrated carry handle and a 300mm Losmandy-style dovetail plate.\u003c\/p\u003e\n\n\u003ch3\u003eWhat types of objects can be photographed?\u003c\/h3\u003e\n\u003cp\u003eThe NAKOH 92GX is suitable for emission and reflection nebulae, rich Milky Way star fields, open clusters, galaxy groups and carefully framed individual galaxies.\u003c\/p\u003e\n\n\u003ch3\u003eCan Dark Clear Skies help check accessory compatibility?\u003c\/h3\u003e\n\u003cp\u003eYes. We can advise on cameras, filter wheels, off-axis guiders, electronic focusers, mounts and threaded adapters before you order.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhy Buy the NAKOH 92GX from Dark Clear Skies?\u003c\/h2\u003e\n\n\u003cp\u003eDark Clear Skies is a UK astronomy specialist focused on helping customers build imaging systems that work together as a complete package. Choosing the telescope is only one part of the process; camera format, filter-wheel depth, guiding method, focuser compatibility, adapter threads and mount capacity must also be considered.\u003c\/p\u003e\n\n\u003cp\u003eWe can help you select suitable cameras, filter wheels, off-axis guiders, electronic focusers, filters, mounts and control accessories for the NAKOH 92GX. We can also review your existing equipment and help identify any adapters required to create a secure threaded imaging train.\u003c\/p\u003e\n\n\u003cp\u003eBuying through Dark Clear Skies gives you access to UK-based advice before your purchase and practical support after delivery. Whether you are upgrading from a smaller refractor or planning a complete large-sensor imaging system, we will help you configure the telescope around the equipment you intend to use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eContact Dark Clear Skies before ordering if you would like us to check camera, focuser, filter-wheel, guider or mount compatibility for your proposed NAKOH 92GX setup.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Nakoh","offers":[{"title":"Default Title","offer_id":55618045542776,"sku":null,"price":1995.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/nakoh-92gx-92mm-quintuplet-petzval-apo-astrograph-telescope.jpg?v=1785094432"},{"product_id":"omegon-pro-apo-130-650-quintuplet-astrograph","title":"Omegon Apochromatic Refractor Pro APO 130\/650 ED3Q OTA","description":"\u003cdiv class=\"dcs-product-description\"\u003e\n\n\u003ch2\u003eOmegon Pro APO 130\/650 Quintuplet – Full-Frame f\/5 Astrograph\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eOmegon Pro APO 130\/650 Quintuplet\u003c\/strong\u003e is a high-performance \u003cstrong\u003e130mm f\/5 apochromatic astrograph\u003c\/strong\u003e designed for serious deep-sky astrophotography with modern large-format cameras. Its five-element optical system incorporates \u003cstrong\u003ethree ED glass elements\u003c\/strong\u003e and an integrated field correction system to deliver a flat, highly corrected imaging field across sensor diagonals of up to \u003cstrong\u003e55mm\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eWith a fast \u003cstrong\u003e650mm focal length and f\/5 focal ratio\u003c\/strong\u003e, the Omegon 130\/650 combines excellent light-gathering ability with relatively short exposure times, making it particularly well suited to nebulae, galaxies, star fields and large deep-sky mosaics.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:center;margin:28px 0;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-130-650-ED3Q-OTA_5.jpg?v=1787642186\" alt=\"Omegon Pro APO 130\/650 ED3Q quintuplet astrophotography refractor\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eDesigned for Full-Frame and Large-Sensor Astrophotography\u003c\/h2\u003e\n\n\u003cp\u003eLarge imaging sensors place enormous demands on telescope optics. A telescope can produce excellent stars in the centre of the frame yet suffer from field curvature, chromatic aberration or distorted stars towards the corners.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eOmegon Pro APO 130\/650 ED3Q\u003c\/strong\u003e has been engineered specifically to overcome this problem. Its quintuplet optical system provides a \u003cstrong\u003efully corrected 55mm image diagonal\u003c\/strong\u003e, comfortably covering a full-frame sensor while providing additional room for larger imaging formats.\u003c\/p\u003e\n\n\u003cp\u003eThe result is a large usable field with sharp stellar profiles extending towards the edges of the image – ideal for demanding deep-sky imaging projects where optical performance across the entire sensor matters.\u003c\/p\u003e\n\n\u003ch2\u003eFive-Element Optics with Three ED Elements\u003c\/h2\u003e\n\n\u003cp\u003eAt the heart of the telescope is an advanced \u003cstrong\u003efive-element apochromatic optical system\u003c\/strong\u003e. Three elements use ED glass to minimise chromatic aberration and help maintain accurate colour reproduction around bright stars.\u003c\/p\u003e\n\n\u003cp\u003eThe quintuplet configuration also provides integrated field correction, reducing the need for a separate external field flattener and creating a cleaner, more streamlined imaging train.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e130mm aperture\u003c\/strong\u003e for excellent deep-sky light gathering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e650mm focal length\u003c\/strong\u003e for versatile wide-field imaging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast f\/5 focal ratio\u003c\/strong\u003e for efficient image acquisition\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFive-element quintuplet design\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree ED glass elements\u003c\/strong\u003e for excellent colour correction\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e55mm fully corrected image field\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated field correction\u003c\/strong\u003e – no separate corrector required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"text-align:center;margin:30px 0;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-130-650-ED3Q-OTA_6.jpg?v=1787642185\" alt=\"Omegon 130 650 quintuplet APO telescope optical tube\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFast f\/5 Performance for Deep-Sky Imaging\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003ef\/5 focal ratio\u003c\/strong\u003e makes the Omegon Pro APO 130\/650 particularly attractive for astrophotographers who want to gather deep-sky data efficiently. Compared with slower optical systems, the fast astrograph design helps achieve strong signal in shorter total exposure times.\u003c\/p\u003e\n\n\u003cp\u003eIts combination of 130mm aperture and 650mm focal length provides a versatile field of view suitable for many popular imaging targets, from expansive emission nebulae and star-forming regions to galaxies, clusters and detailed deep-sky mosaics.\u003c\/p\u003e\n\n\u003ch2\u003eIntegrated Camera Rotation and Tilt Adjustment\u003c\/h2\u003e\n\n\u003cp\u003eBuilding a high-performance imaging system requires more than excellent optics. Camera orientation and sensor alignment can have a significant effect on the finished image.\u003c\/p\u003e\n\n\u003cp\u003eThe Omegon 130\/650 therefore includes \u003cstrong\u003eintegrated rotation and tilt adjustment\u003c\/strong\u003e. Camera rotation makes framing your target easier without disturbing the mount, while the tilt mechanism provides additional adjustment when fine-tuning sensor alignment.\u003c\/p\u003e\n\n\u003cp\u003eThis is especially useful with large, high-resolution sensors where even small amounts of tilt can become visible towards the edges of the frame.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:center;margin:30px 0;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-130-650-ED3Q-OTA_9.jpg?v=1787642185\" alt=\"Omegon Pro APO 130 650 ED3Q astrophotography telescope focuser and imaging connections\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eHeavy-Duty 3.7-Inch Rack-and-Pinion Focuser\u003c\/h2\u003e\n\n\u003cp\u003eModern astrophotography systems can become heavy once a cooled astronomy camera, filter wheel, off-axis guider and adapters are installed. The Omegon Pro APO 130\/650 uses a substantial \u003cstrong\u003e3.7-inch rack-and-pinion focuser\u003c\/strong\u003e designed to support imaging payloads of up to \u003cstrong\u003e5kg\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eA \u003cstrong\u003e1:10 fine-focus reduction\u003c\/strong\u003e provides the precision needed to achieve critical focus, while the focuser offers a 42mm adjustment range and 67mm clear aperture.\u003c\/p\u003e\n\n\u003cp\u003eThe camera side provides a choice of threaded connections, including \u003cstrong\u003eM48, M54 and M68\u003c\/strong\u003e, allowing the telescope to be incorporated into a wide variety of astrophotography configurations.\u003c\/p\u003e\n\n\u003ch2\u003eBuilt for Modern Imaging Rigs\u003c\/h2\u003e\n\n\u003cp\u003eThe telescope includes a robust mechanical mounting system with tube rings, a \u003cstrong\u003eLosmandy-style dovetail plate\u003c\/strong\u003e and a carrying handle. The handle incorporates an \u003cstrong\u003eArca-Swiss compatible rail\u003c\/strong\u003e, providing a convenient mounting position for compatible accessories.\u003c\/p\u003e\n\n\u003cp\u003eA Vixen\/Sky-Watcher style finder base is also provided, giving additional flexibility for guidescopes, finder systems and other accessories.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:center;margin:30px 0;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-130-650-ED3Q-OTA_3.jpg?v=1787642185\" alt=\"Omegon Pro APO 130mm astrophotography refractor tube rings dovetail and carrying handle\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eInterferometrically Tested Optics\u003c\/h2\u003e\n\n\u003cp\u003eOptical quality is particularly important with a large, fast astrograph. Each instrument is \u003cstrong\u003einterferometrically tested\u003c\/strong\u003e as part of the quality-control process, helping ensure the telescope is capable of delivering the performance expected from its advanced optical design.\u003c\/p\u003e\n\n\u003ch2\u003eWho Is the Omegon Pro APO 130\/650 For?\u003c\/h2\u003e\n\n\u003cp\u003eThis is primarily an \u003cstrong\u003eastrophotography telescope\u003c\/strong\u003e rather than a general-purpose beginner's refractor. It is particularly well suited to experienced imagers and observatory installations using demanding camera systems.\u003c\/p\u003e\n\n\u003cp\u003eIt is an excellent choice for astrophotographers looking for:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eA fast \u003cstrong\u003e130mm APO astrograph\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eExcellent compatibility with \u003cstrong\u003efull-frame astronomy cameras\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eA corrected field substantially larger than standard full frame\u003c\/li\u003e\n\u003cli\u003eIntegrated field correction without a separate flattener\u003c\/li\u003e\n\u003cli\u003eED optics with excellent chromatic correction\u003c\/li\u003e\n\u003cli\u003eCamera rotation and tilt adjustment\u003c\/li\u003e\n\u003cli\u003eA substantial focuser capable of carrying heavy imaging equipment\u003c\/li\u003e\n\u003cli\u003eA premium platform for nebula and galaxy astrophotography\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"text-align:center;margin:30px 0;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-130-650-ED3Q-OTA_13.jpg?v=1787642185\" alt=\"Omegon Pro APO AP 130 650 quintuplet full frame deep sky astrograph\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eOmegon Pro APO 130\/650 Specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTelescope type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAPO refractor \/ astrograph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAperture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e130mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e650mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ef\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptical design\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eQuintuplet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eED elements\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFully corrected field\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e55mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptical coating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFMC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocuser\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.7-inch rack and pinion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFine focus\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1:10 reduction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocuser adjustment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e42mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocuser load capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFree aperture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e67mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCamera connections\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM48, M54 and M68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBack focus\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e65mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCamera rotation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTilt adjustment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTube material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTube length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e785mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDew shield diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e186mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOTA weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11.5kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting rail\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLosmandy style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat's Included?\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eOmegon Pro APO AP 130\/650 Quintuplet optical tube assembly\u003c\/li\u003e\n\u003cli\u003eTwo tube clamps\u003c\/li\u003e\n\u003cli\u003eLosmandy-style mounting plate\u003c\/li\u003e\n\u003cli\u003eCarrying handle with accessory mounting provision\u003c\/li\u003e\n\u003cli\u003eIntegrated corrector\u003c\/li\u003e\n\u003cli\u003eDew shield\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"text-align:center;margin:30px 0;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-130-650-ED3Q-OTA_4.jpg?v=1787642186\" alt=\"Omegon Pro APO 130 650 ED3Q OTA astrophotography telescope UK\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eA Serious 130mm Astrograph for Demanding Imaging\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eOmegon Pro APO 130\/650 Quintuplet\u003c\/strong\u003e brings together a fast f\/5 optical system, three ED elements, a large \u003cstrong\u003e55mm corrected image circle\u003c\/strong\u003e, integrated field correction and a heavy-duty imaging focuser in a telescope designed from the outset for astrophotography.\u003c\/p\u003e\n\n\u003cp\u003eFor imagers moving to full-frame cameras or building a permanent deep-sky imaging system, it provides the optical and mechanical features required for a sophisticated modern astrophotography rig.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAvailable from Dark Clear Skies – UK astronomy equipment specialists.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003c\/div\u003e\n","brand":"Omegon","offers":[{"title":"Default Title","offer_id":55639408968056,"sku":"86135","price":4020.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-130-650-ED3Q-OTA_6.jpg?v=1787642185"},{"product_id":"omegon-pro-apo-ap-130-910-triplet-apochromatic-refractor-ota","title":"Omegon Pro APO AP 130\/910 Triplet Apochromatic Refractor OTA","description":"\u003cdiv class=\"dcs-product-description\"\u003e\n\n\u003ch2\u003eOmegon Pro APO AP 130\/910 – Premium 130mm Triplet Refractor\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eOmegon Pro APO AP 130\/910\u003c\/strong\u003e is a premium \u003cstrong\u003e130mm f\/7 triplet apochromatic refractor\u003c\/strong\u003e developed for astronomers who demand exceptional sharpness, contrast and colour correction.\u003c\/p\u003e\n\n\u003cp\u003eCombining a 130mm ED triplet objective with a versatile \u003cstrong\u003e910mm focal length\u003c\/strong\u003e, precision 3.7-inch focuser and certified optical performance, this is a serious refractor for high-resolution lunar and planetary observing, visual deep-sky astronomy and astrophotography.\u003c\/p\u003e\n\n\u003cp\u003eEach instrument is supplied with an \u003cstrong\u003einterferometric optical test report documenting a Strehl ratio of at least 0.95\u003c\/strong\u003e, providing confidence in the optical performance of the individual telescope.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:center;margin:30px 0;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-AP-130-910-OTA_10.jpg?v=1787644235\" alt=\"Omegon Pro APO AP 130 910 triplet apochromatic refractor OTA\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e130mm ED Triplet Optics\u003c\/h2\u003e\n\n\u003cp\u003eAt the heart of the Omegon Pro APO 130\/910 is a \u003cstrong\u003ethree-element apochromatic objective incorporating premium ED glass\u003c\/strong\u003e. The optical design is engineered to suppress chromatic aberration and produce naturally coloured, high-contrast views around bright stars, the Moon and planets.\u003c\/p\u003e\n\n\u003cp\u003eWith 130mm of aperture, the telescope provides enough resolving power for detailed planetary observation while gathering sufficient light for globular clusters, planetary nebulae and many smaller deep-sky targets.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e130mm aperture\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e910mm focal length\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ef\/7 focal ratio\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eED triplet apochromatic objective\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFully multi-coated optics\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndividual interferometric optical test\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDocumented Strehl ratio ≥0.95\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"text-align:center;margin:30px 0;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-AP-130-910-OTA_2.jpg?v=1787644234\" alt=\"Omegon 130mm ED triplet APO refractor objective and optical tube\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eOptimised for the Moon and Planets\u003c\/h2\u003e\n\n\u003cp\u003eThe combination of \u003cstrong\u003e130mm aperture and 910mm focal length\u003c\/strong\u003e makes this Pro APO particularly attractive for detailed lunar and planetary work.\u003c\/p\u003e\n\n\u003cp\u003eIts f\/7 optical system provides a useful balance between resolution, image scale and overall tube length. Under good seeing conditions, the telescope is capable of revealing subtle lunar structure and fine planetary detail while maintaining the clean colour correction expected from a high-quality apochromat.\u003c\/p\u003e\n\n\u003cp\u003eThe telescope has a quoted maximum useful magnification of approximately \u003cstrong\u003e260x\u003c\/strong\u003e, although actual usable magnification will always depend on atmospheric conditions and the target being observed.\u003c\/p\u003e\n\n\u003ch2\u003eMore Than a Planetary Refractor\u003c\/h2\u003e\n\n\u003cp\u003eThe 130\/910 is also a highly capable all-round astronomical instrument. Its aperture makes it suitable for double stars, globular clusters, planetary nebulae and brighter galaxies, while the excellent contrast of a refractor can reveal subtle structure in deep-sky objects under dark skies.\u003c\/p\u003e\n\n\u003cp\u003eFor astrophotography, the longer 910mm focal length offers increased image scale compared with shorter wide-field astrographs, making it particularly useful for smaller nebulae, galaxies and high-resolution imaging projects.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:center;margin:30px 0;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-AP-130-910-OTA_8.jpg?v=1787644234\" alt=\"Omegon Pro APO 130 910 telescope for lunar planetary and deep sky astronomy\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e3.7-Inch Precision Rack-and-Pinion Focuser\u003c\/h2\u003e\n\n\u003cp\u003eA premium optical tube needs equally capable mechanics. The Omegon Pro APO 130\/910 uses a substantial \u003cstrong\u003e3.7-inch rack-and-pinion focuser\u003c\/strong\u003e with \u003cstrong\u003e1:10 fine focusing\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eThe fine-focus reduction makes precise focusing considerably easier at high magnification and when imaging with modern astronomy cameras.\u003c\/p\u003e\n\n\u003cp\u003eThe focuser is also \u003cstrong\u003erotatable\u003c\/strong\u003e, allowing you to position an eyepiece, diagonal or imaging camera more conveniently without rotating the entire optical tube.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e3.7-inch rack-and-pinion focuser\u003c\/li\u003e\n\u003cli\u003e1:10 fine-focus reduction\u003c\/li\u003e\n\u003cli\u003eRotatable focuser\u003c\/li\u003e\n\u003cli\u003e100mm focus adjustment range\u003c\/li\u003e\n\u003cli\u003eApproximately 150mm back focus\u003c\/li\u003e\n\u003cli\u003e1.25-inch and 2-inch accessory support\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"text-align:center;margin:30px 0;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-AP-130-910-OTA_4.jpg?v=1787644234\" alt=\"Omegon Pro APO 130 910 precision 3.7 inch rack and pinion focuser\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eSecure 1.25-Inch and 2-Inch Accessory Mounting\u003c\/h2\u003e\n\n\u003cp\u003eThe telescope provides \u003cstrong\u003eself-centring connections for both 1.25-inch and 2-inch accessories\u003c\/strong\u003e, helping keep diagonals, eyepieces and other equipment securely and accurately aligned.\u003c\/p\u003e\n\n\u003cp\u003eFor astrophotography, an \u003cstrong\u003eM82x1 internal thread\u003c\/strong\u003e provides a substantial threaded camera connection and helps avoid unnecessary restriction in the imaging train.\u003c\/p\u003e\n\n\u003ch2\u003eBuilt for Serious Astronomy\u003c\/h2\u003e\n\n\u003cp\u003eThe aluminium optical tube is supported by robust metal tube rings and a \u003cstrong\u003eLosmandy-style dovetail rail\u003c\/strong\u003e, providing the secure mounting platform expected for a refractor of this size.\u003c\/p\u003e\n\n\u003cp\u003eA carrying handle makes installation easier, while an integrated Vixen\/Sky-Watcher style finder shoe provides a mounting point for compatible finderscopes and accessories.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:center;margin:30px 0;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-AP-130-910-OTA_5.jpg?v=1787644233\" alt=\"Omegon Pro APO 130 910 refractor tube rings Losmandy dovetail and carrying handle\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eIndividually Tested Optical Quality\u003c\/h2\u003e\n\n\u003cp\u003eOne of the most important features of the Omegon Pro APO AP 130\/910 is its documented optical quality.\u003c\/p\u003e\n\n\u003cp\u003eEach telescope is supplied with an \u003cstrong\u003einterferometric test report\u003c\/strong\u003e documenting its optical performance, including a Strehl ratio of at least 0.95. This provides considerably more information about the individual instrument than relying on model specifications alone.\u003c\/p\u003e\n\n\u003ch2\u003eOmegon Pro APO AP 130\/910 Specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApochromatic refractor OTA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptical design\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eED Triplet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAperture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e130mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e910mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ef\/7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum useful magnification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e260x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLimiting magnitude\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptical coating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFully multi-coated (FMC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptical test\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInterferometric test report\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStrehl ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≥0.95\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocuser\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.7-inch rack and pinion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFine focus\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1:10 reduction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocuser rotation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocus travel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBack focus\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e150mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEyepiece connections\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.25-inch and 2-inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eImaging thread\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM82x1 internal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTube length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e950mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDew shield diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e168mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOTA weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10.9kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting rail\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLosmandy style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinder base\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVixen\/Sky-Watcher style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cdiv style=\"text-align:center;margin:30px 0;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-AP-130-910-OTA_9.jpg?v=1787644233\" alt=\"Omegon Pro APO AP 130 910 premium apochromatic telescope OTA UK\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eWhat's Included?\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eOmegon Pro APO AP 130\/910 Triplet optical tube assembly\u003c\/li\u003e\n\u003cli\u003eTwo metal tube clamps\u003c\/li\u003e\n\u003cli\u003eLosmandy-style mounting rail\u003c\/li\u003e\n\u003cli\u003eCarrying handle\u003c\/li\u003e\n\u003cli\u003eIntegrated finder shoe\u003c\/li\u003e\n\u003cli\u003eTransport case\u003c\/li\u003e\n\u003cli\u003e1.25-inch and 2-inch accessory adapters\u003c\/li\u003e\n\u003cli\u003eInterferometric optical test report with documented Strehl ratio\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho Is the Omegon Pro APO 130\/910 For?\u003c\/h2\u003e\n\n\u003cp\u003eThis telescope is particularly well suited to experienced observers and astrophotographers looking for a high-quality \u003cstrong\u003e130mm apochromatic refractor\u003c\/strong\u003e with excellent optical certification and substantial mechanical construction.\u003c\/p\u003e\n\n\u003cp\u003eIt is particularly compelling for:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eHigh-resolution lunar observation\u003c\/li\u003e\n\u003cli\u003ePlanetary observing and imaging\u003c\/li\u003e\n\u003cli\u003eDouble-star observing\u003c\/li\u003e\n\u003cli\u003eGlobular clusters and planetary nebulae\u003c\/li\u003e\n\u003cli\u003eSmaller galaxies and deep-sky targets\u003c\/li\u003e\n\u003cli\u003eHigh-resolution astrophotography\u003c\/li\u003e\n\u003cli\u003ePermanent observatory installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"text-align:center;margin:30px 0;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-AP-130-910-OTA_1.jpg?v=1787644233\" alt=\"Omegon Pro APO AP 130 910 ED triplet telescope for advanced astronomy\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eCertified Performance for Demanding Observers\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eOmegon Pro APO AP 130\/910\u003c\/strong\u003e combines the contrast and colour fidelity of a premium ED triplet refractor with 130mm aperture, a versatile f\/7 focal ratio and serious mechanical construction.\u003c\/p\u003e\n\n\u003cp\u003eFor astronomers who value high-resolution visual performance as much as astrophotography capability, it offers a compelling step into premium large-aperture refractor territory.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAvailable from Dark Clear Skies – UK astronomy equipment specialists.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003c\/div\u003e\n","brand":"Omegon","offers":[{"title":"Default Title","offer_id":55639433576824,"sku":"86136","price":2558.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Omegon-Apochromatic-refractor-Pro-APO-AP-130-910-OTA_4.jpg?v=1787644234"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/collections\/ChatGPT_Image_Aug_31_2026_10_22_07_AM.png?v=1788168226","url":"https:\/\/www.darkclearskies.co.uk\/collections\/astrophotography-telescopes.oembed","provider":"Dark Clear Skies ","version":"1.0","type":"link"}