{"title":"Solar Filters","description":"\u003cp\u003eObserve and image the Sun with solar filters selected by Dark Clear Skies. Explore front-aperture white-light filters, AstroSolar film, solar continuum and calcium filters, energy-rejection filters and specialist solar imaging systems.\u003c\/p\u003e\n\u003cp\u003eSolar observation requires the correct undamaged filter to be securely fitted and used exactly as specified by its manufacturer. Some continuum, calcium and narrowband filters are secondary components and require an approved primary solar filter, blocking filter or energy-rejection system. Never look at the Sun through unfiltered optics.\u003c\/p\u003e","products":[{"product_id":"vaonis-vespera-solar-filter-daytime-sunspot-observation-accessory","title":"Vaonis Vespera Solar Filter – Daytime Sunspot Observation Accessory","description":"\u003ch1 class=\"vc_custom_heading\"\u003eVaonis Vespera Solar Filter\u003c\/h1\u003e\n\u003cp\u003eAstronomer by night, astronomer by day!\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eObserve the closest star to Earth during the day\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith the Vespera solar filter. The filter allows you to observe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003esunspots\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(dark spots) that show the intensity of the Sun’s activity.\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSolar Mode\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eallows you to observe the Sun in almost real-time using the live display. Capture photos at any time from the Observation tab of the Singularity mobile app.\u003c\/p\u003e\n\u003cp\u003eTake several shots at different times of the day, week or month and compare your photos. Witness how the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSun’s activity\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003echanges with the appearance or disappearance of sunspots. These can have a life span of several days, more rarely several weeks.\u003c\/p\u003e\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eAstronomer by night, astronomer by day! Observe the closest star to Earth during the day with the Vespera solar filter. The filter allows you to observe sunspots (dark spots) that show the intensity of the Sun’s activity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePhotograph the Sun with Vespera\u003c\/strong\u003e\u003cbr\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eSolar Mode\u003c\/em\u003e allows you to observe the Sun in almost real-time using the live display*. Capture photos at any time from the Observation tab of the Singularity mobile app.\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"\" href=\"https:\/\/vaonis.com\/wp-content\/uploads\/2022\/07\/2022-07-12_17-30-34_154.jpeg\" data-rl_title=\"\" data-rl_caption=\"\" data-rel=\"lightbox-image-0\"\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/VAONIS\/20221006-Solar-observation-with-myVespera-1.webp\" loading=\"lazy\" aria-describedby=\"caption-attachment-22134\" alt=\"Vespera solar filter\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp id=\"caption-attachment-22134\"\u003eSun spots observed on 12\/07\/2022 with the Vespera solar filter.\u003c\/p\u003e\n\u003cp\u003eTake several shots at different times of the day, week or month and compare your photos. Witness how the Sun’s activity changes with the appearance or disappearance of sunspots. These can have a life span of several days, more rarely several weeks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSun spots monitoring.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"299\"\u003e\n\u003cp\u003e\u003ca title=\"\" href=\"https:\/\/vaonis.com\/wp-content\/uploads\/2022\/07\/20220928-Solar-observation-with-myVespera.jpeg\" data-rl_title=\"\" data-rl_caption=\"\" data-rel=\"lightbox-image-1\"\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/le\/product\/VAONIS\/20220928-Solar-observation-with-myVespera.webp\" loading=\"lazy\" alt=\"\"\u003e\u003c\/a\u003e28\/09\/2022\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"299\"\u003e\n\u003cp\u003e\u003ca title=\"\" href=\"https:\/\/vaonis.com\/wp-content\/uploads\/2022\/07\/20221004-Solar-observation-with-myVespera.jpeg\" data-rl_title=\"\" data-rl_caption=\"\" data-rel=\"lightbox-image-2\"\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/le\/product\/VAONIS\/20221004-Solar-observation-with-myVespera.webp\" loading=\"lazy\" alt=\"\"\u003e\u003c\/a\u003e04\/10\/2022\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"299\"\u003e\n\u003cp\u003e\u003ca title=\"\" href=\"https:\/\/vaonis.com\/wp-content\/uploads\/2022\/07\/20221006-Solar-observation-with-myVespera-1.jpg\" data-rl_title=\"\" data-rl_caption=\"\" data-rel=\"lightbox-image-3\"\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/le\/product\/VAONIS\/vaonis-vespera-solar-filter-sunspot.webp\" loading=\"lazy\" alt=\"\"\u003e\u003c\/a\u003e06\/10\/2022\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cul\u003e\n\u003cli\u003eAutomatic video recording for solar\/planetary observation is not yet offered in Singularity. To make an animation, retrieve your photos in jpg format from Vespera’s internal memory and put your photos together using photo\/gif animation software.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e*Continuous display of photos with a unit exposure time of 250µs\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eObserve safely\u003c\/strong\u003e\u003cbr\u003eThe filter is made of a metalized foil with a dimming effect. It will reduce the amount of light and allow you to observe the Sun in a way that is safe for your instrument. You will be guided through every step of your adventure by the\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eSolar Mode\u003c\/em\u003e of the Vaonis Singularity app, to ensure the observation runs smoothly and that you and your instrument are safe.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp\u003eLearn more with our blog article\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/vaonis.com\/observing-the-sun-with-vespera-and-stellina\"\u003e\u003cem\u003e\u003cstrong\u003eObserving the solar activity with Vespera\u003c\/strong\u003e\u003c\/em\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" href=\"https:\/\/vaonis.com\/observing-the-sun-with-vespera-and-stellina\" target=\"_blank\"\u003e\u003cimg width=\"2000\" src=\"https:\/\/vaonis.com\/wp-content\/uploads\/2022\/10\/vespera-solar-fiter.jpeg\" loading=\"lazy\" height=\"1395\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eWarnings\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eYour Vespera station should never be pointed towards the sun unless a solar filter is installed.\u003c\/li\u003e\n\u003cli\u003eYou can only use Vespera to observe the sun using the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\u003cem\u003eSolar Mode\u003c\/em\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efeature of the Singularity app and the solar filter specially designed by Vaonis. The use of any other means to observe the Sun (pointing by coordinates, pointing by hand, use of any other filter, etc.) would void your warranty in the event of damage to your equipment. (see Warranties below).\u003c\/li\u003e\n\u003cli\u003eNever look directly at the sun without adequate protection. Direct observation of the sun without protection and without a solar filter, even for a short time, can lead to serious eye burns and potential loss of vision or even blindness.\u003c\/li\u003e\n\u003cli\u003eDo not attempt to open the lens ring that contains the filter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!----\u003e","brand":"Vaonis","offers":[{"title":"Default Title","offer_id":43255471931569,"sku":"AC021","price":159.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/vaonis-vespera-solar-filter-daytime-sunspot-observation-accessory-995748.webp?v=1718480478"},{"product_id":"sv229-solar-eclipse-filter-telescope-1","title":"SV229 Solar Eclipse Filter Telescope","description":"\u003ch2\u003e\n\u003cstrong\u003e\u003cspan\u003eSV229 Solar Telescope Filter - Observe Eclipses \u0026amp; Sunspots\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cimg alt=\"1464X600-1.jpg\" title=\"1464X600-1.jpg\" src=\"https:\/\/www.svbony.com\/UploadedMedia\/image\/20231115\/6383563925597238961364128.jpg\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSV229 is an ideal choice for viewing the sun, and it conforms the standard ISO 12312-2: 2015. A must-have to observe the sun without damaging your eyes - optical filter fits snugly over your telescope's aperture. You can use it with confidence. The solar filter can used in solar observation, solar eclipse and sunspots.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003e\u003cstrong\u003eOuter Diameters 80~118mm\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cimg alt=\"6383563925972207665934279.jpg\" title=\"6383563925972207665934279.jpg\" src=\"https:\/\/www.svbony.com\/UploadedMedia\/image\/20231122\/6383625062508629705796902.jpg\"\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eThe SV229-W9183B features an inside diameter of 103mm - it is designed to fit optical tubes with an outer diameter of 80mm to 118mm.                \u003c\/span\u003e\u003c\/h2\u003e\n\u003ch2\u003e\u003cspan\u003e  \u003cstrong\u003e For Solar Eclipse\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cimg alt=\"1464X600-2.jpg\" title=\"1464X600-2.jpg\" src=\"https:\/\/www.svbony.com\/UploadedMedia\/image\/20231115\/6383563925634181119481435.jpg\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003e\u003cstrong\u003e For Sunspots\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cimg alt=\"1464X600-3.jpg\" title=\"1464X600-3.jpg\" src=\"https:\/\/www.svbony.com\/UploadedMedia\/image\/20231115\/6383563925665764408580782.jpg\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003e\u003cstrong\u003e For Solar Observation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cimg alt=\"1464X600-4.jpg\" title=\"1464X600-4.jpg\" src=\"https:\/\/www.svbony.com\/UploadedMedia\/image\/20231115\/6383563925727003244242385.jpg\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Solar Filter provide a clear, crisp sunspots, solar eclipses, granulation through telescopes and binoculars view while rejecting harmful ultraviolet and infrared radiation. The sun will appear in a natural orange color when viewed through your telescope using this Solar filter.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan\u003eCompatible With SV550 Telescope\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cimg alt=\"1464X600-5.jpg\" title=\"1464X600-5.jpg\" src=\"https:\/\/www.svbony.com\/UploadedMedia\/image\/20231115\/6383563925789209948312117.jpg\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOur solar filter is compatiable with SV550 telescope. It can fit many current astronomical telescopes and can be also installed on other brands of telescopes on the market, meeting everyone's different needs.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003e\u003cstrong\u003e Aluminum Frame - Stable \u0026amp; Durable\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cimg alt=\"1464X600-6.jpg\" title=\"1464X600-6.jpg\" src=\"https:\/\/www.svbony.com\/UploadedMedia\/image\/20231115\/6383563925849917518892690.jpg\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe SV229 features with auminum frame; compared with other plastic frames; our aluminum frames are more stable and durable.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003e\u003cstrong\u003e Snug Fit\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cimg alt=\"1464X600-7.jpg\" title=\"1464X600-7.jpg\" src=\"https:\/\/www.svbony.com\/UploadedMedia\/image\/20231115\/6383563925910910122468313.jpg\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThree metal screw cap and clamping screws with protective plastic caps - ensure a perfect fit. The diameter is adjustable, you can according to your needs to adjust the filter diameter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003e\u003cstrong\u003e How to Use the Solar Filter\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cimg alt=\"1464X600-9.jpg\" title=\"1464X600-9.jpg\" src=\"https:\/\/www.svbony.com\/UploadedMedia\/image\/20231115\/6383563926034924581818140.jpg\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eInspect your filter before every use. Do not use  if damaged, torn, punctured, or separated from the frame in any way.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch1\u003e\u003cstrong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h1\u003e","brand":"Svbony","offers":[{"title":"Default Title","offer_id":43265027604657,"sku":"W9183B","price":44.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/sv229-solar-eclipse-filter-telescope-596608.jpg?v=1718480281"},{"product_id":"baader-2-safety-coolceramic-herschel-prism-mk-ii","title":"BAADER 2″ SAFETY COOLCERAMIC HERSCHEL PRISM  MK II","description":"\u003cp\u003e \u003c\/p\u003e\n\u003ch1\u003eExperience the Sun in Unprecedented Detail with the Baader Planetarium Herschel Wedge Prism Mk II\u003c\/h1\u003e\n\u003ch2\u003eUnlock Precision in Solar Observation and Photography\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eBaader Planetarium 2\" Herschel Wedge Prism Mk II\u003c\/strong\u003e is designed for both amateur and seasoned astronomers, delivering unmatched clarity and safety. This innovative system provides a detailed view of the sun's dynamic surface, ideal for observation and photography.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhantom Group® Anti-Reflective Coating:\u003c\/strong\u003e Minimizes reflections with one-sided coating, offering optimal light transmission for clear solar imaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCeramic Solar Finder and ClickLock® Eyepiece Holder:\u003c\/strong\u003e Safe alignment with the sun using a ceramic finder and easy eyepiece changes with the 2\" ClickLock eyepiece holder.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Rotation Mechanism:\u003c\/strong\u003e Adjust brightness with polarizing filters, perfect for both observation and photography. Includes a Neutral Density Filter for seamless brightness control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eEnhance Your Viewing Experience\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBaader 7.5 nm Solar Continuum Filter 2″ (540nm):\u003c\/strong\u003e Sharpen solar images with the included filter that enhances sunspot and surface details.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS58 Dovetail and Safety Kerfs:\u003c\/strong\u003e A secure 2\" nosepiece with S58 dovetail and safety kerfs for secure telescope attachment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-Point Adjustment System:\u003c\/strong\u003e Pre-set for optimal solar viewing performance straight from the factory.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eChoose Your Path to the Sun: Visual and Photographic Versions\u003c\/h2\u003e\n\u003cp\u003eExplore the sun with either the \u003cstrong\u003eVisual\u003c\/strong\u003e or \u003cstrong\u003ePhotographic\u003c\/strong\u003e version of the Herschel Wedge Prism. Each option includes the Baader Safety CoolCeramic Herschel Prism, Solar Continuum Filter, and specially tailored Neutral Density Filters for safe, detailed solar observation.\u003c\/p\u003e\n\u003ch3\u003eVisual Version Includes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBaader Safety CoolCeramic Herschel Prism 2″ Visual (#2956510V)\u003c\/li\u003e\n\u003cli\u003eBaader 7.5 nm Solar Continuum Filter 2″ (540nm) (#2961581)\u003c\/li\u003e\n\u003cli\u003eBaader Neutral Density Filter 2″ (ND 3.0, T=0.1%) (#2458332)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePhotographic Version Includes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBaader Safety CoolCeramic Herschel Prism 2″ Visual (#2956510V)\u003c\/li\u003e\n\u003cli\u003eBaader 7.5 nm Solar Continuum Filter 2″ (540nm) (#2961581)\u003c\/li\u003e\n\u003cli\u003eBaader Neutral Density Filter 2″ (ND 3.0, T=0.1%) (#2458332)\u003c\/li\u003e\n\u003cli\u003eBaader Neutral Density Filter 2″ (ND 1.8, T=1.5%) (#2458331)\u003c\/li\u003e\n\u003cli\u003eBaader Neutral Density Filter 2″ (ND 0.9, T=12.5%) (#2458322)\u003c\/li\u003e\n\u003cli\u003eBaader Neutral Density Filter 2″ (ND 0.6, T=25%) (#2458321)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eEmbrace the Sun\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eBaader Planetarium 2\" Herschel Wedge Prism Mk II\u003c\/strong\u003e and its suite of filters bring you closer to the intricate details of the sun safely. Observe sunspots, solar flares, and the sun’s granular surface with unparalleled precision, using Baader Planetarium technology.\u003c\/p\u003e\n\u003cp\u003eWith Dark Clear Skies, dive into the world of solar astronomy with confidence, backed by precision engineering from Baader Planetarium.\u003c\/p\u003e","brand":"Baader","offers":[{"title":"BAADER 2″ SAFETY COOLCERAMIC HERSCHEL PRISM (VISUAL VERSION) MK II","offer_id":43392091062449,"sku":"2956510V","price":495.0,"currency_code":"GBP","in_stock":true},{"title":"BAADER 2″ SAFETY COOLCERAMIC HERSCHEL PRISM (PHOTOGRAPHIC VERSION) MK II","offer_id":43392091095217,"sku":"2956510P","price":555.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/baader-2-safety-coolceramic-herschel-prism-mk-ii-976486.jpg?v=1782295649"},{"product_id":"astrosolar-safety-film-20x29cm","title":"AstroSolar® Safety Film 5.0, 20x29cm","description":"\u003ch1\u003eAstroSolar® Safety Film 5.0 – Telescope Quality\u003c\/h1\u003e\n\u003ch2\u003ePremium Solar Protection for Observation \u0026amp; Imaging\u003c\/h2\u003e\n\u003cp\u003eAstroSolar® Safety Film 5.0 is the gold standard for safe solar observation and high-magnification imaging. Designed specifically for telescopes, binoculars, and camera lenses, this premium film provides \u003cstrong\u003eoptical density (OD) 5.0\u003c\/strong\u003e protection, making it completely safe for direct visual observation (when properly mounted) and solar photography.\u003c\/p\u003e\n\u003ch2\u003eUnmatched Optical Precision\u003c\/h2\u003e\n\u003cp\u003eUnlike other solar filters, AstroSolar® is engineered to \u003cstrong\u003emaintain the optical wavefront\u003c\/strong\u003e without distortion. Interferometric tests confirm Strehl ratios of \u003cstrong\u003e94–96%\u003c\/strong\u003e—performance on par with \u003cstrong\u003efluorite triplet lenses\u003c\/strong\u003e by Carl Zeiss and Astro-Physics. 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It’s the only film material purpose-built to preserve the integrity of your optical system, allowing \u003cstrong\u003ehigh magnification without sacrificing detail\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWhether you're building a custom solar filter or upgrading your solar setup, this film delivers \u003cstrong\u003eprofessional-grade results\u003c\/strong\u003e with confidence and safety.\u003c\/p\u003e","brand":"Baader","offers":[{"title":"Default Title","offer_id":43503629074609,"sku":"2459281","price":39.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/astrosolar-safety-film-50-20x29cm-733925.jpg?v=1782295560"},{"product_id":"astf-astrosolar-telescope-filters-od-5-0","title":"ASTF: AstroSolar Telescope Filters OD 5.0","description":"\u003cp\u003e\u003cspan\u003eASTF: AstroSolar Telescope Filters OD 5.0\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFrom 80mm to 240mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOptimized for Solar Observation and Photography: Ideal for use with premium telescopes and high-power tele-lenses. Enables observation of the finest details, including individual sunspots, at the highest magnification levels. AstroSolar Safety Film OD 5.0: Carefully mounted in a temperature-compensated cell to ensure stress-free performance. Temperature Stability: Designed to eliminate astigmatism, ensuring clear observations regardless of winter cold or summer heat. Included in the Package: ASTF Filters available for apertures ranging from 80 to 180mm (200 – 280mm coming soon). Each set includes two sets of centering bolts (38mm length) – three bolts with a 10mm diameter and three with a 20mm diameter, adjustable for your telescope or dew cap's tube diameter. Additionally, three safety straps with glue-pads, three rubber plugs for unused holes, and detailed mounting instructions are provided.\u003c\/span\u003e\u003c\/p\u003e","brand":"Baader","offers":[{"title":"BAADER 5.0 OD AstroSolar® Telescope Filter 80mm","offer_id":43503655387313,"sku":"2459310","price":63.0,"currency_code":"GBP","in_stock":false},{"title":"BAADER 5.0 OD AstroSolar® Telescope Filter 100mm","offer_id":43503655420081,"sku":"2459311","price":73.0,"currency_code":"GBP","in_stock":true},{"title":"BAADER 5.0 OD AstroSolar® Telescope Filter 120mm","offer_id":43503655452849,"sku":"2459312","price":84.0,"currency_code":"GBP","in_stock":true},{"title":"BAADER 5.0 OD AstroSolar® Telescope Filter 140mm","offer_id":43503655485617,"sku":"2459313","price":93.0,"currency_code":"GBP","in_stock":true},{"title":"BAADER 5.0 OD AstroSolar® Telescope Filter 160mm","offer_id":43503655518385,"sku":"2459314","price":102.0,"currency_code":"GBP","in_stock":true},{"title":"BAADER 5.0 OD AstroSolar® Telescope Filter 180mm","offer_id":43503655551153,"sku":"2459315","price":114.0,"currency_code":"GBP","in_stock":false},{"title":"BAADER 5.0 OD AstroSolar® Telescope Filter 200mm","offer_id":43503655583921,"sku":"2459316","price":126.0,"currency_code":"GBP","in_stock":true},{"title":"BAADER 5.0 OD AstroSolar® Telescope Filter 240mm","offer_id":43503655616689,"sku":"2459317","price":144.0,"currency_code":"GBP","in_stock":true},{"title":"BAADER 5.0 OD AstroSolar® Telescope Filter 280mm","offer_id":43503655649457,"sku":"2459318","price":154.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/astf-astrosolar-telescope-filters-od-50-694222.jpg?v=1782295150"},{"product_id":"lunt-ls50fha-b1200d2-h-alpha-solar-filter","title":"LUNT LS50FHa B1200d2 H-alpha Solar Filter","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e \u003cmeta name=\"description\" content=\"Discover the LUNT LS50FHa B1200d2 H-alpha Solar Filter for detailed solar observations. Featuring a 50mm aperture and B1200 blocking filter, capture stunning solar phenomena with clarity and safety. Available at Dark Clear Skies, your UK-based astronomy retailer. Explore and buy now!\"\u003e\u003c\/p\u003e\n\u003ch1\u003eLUNT LS50FHa B1200d2 H-alpha Solar Filter\u003c\/h1\u003e\n\u003ch2\u003eUnlock the Wonders of Solar Observation\u003c\/h2\u003e\n\u003cp\u003eAre you passionate about exploring the intricacies of our sun? The \u003cstrong\u003eLUNT LS50FHa B1200d2 H-alpha Solar Filter\u003c\/strong\u003e is your gateway to detailed solar viewing. This high-performance filter system offers unparalleled clarity, allowing you to observe fascinating solar phenomena such as prominences, filaments, and surface granulation with exceptional detail.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Resolution H-alpha Viewing:\u003c\/strong\u003e The LUNT LS50FHa B1200d2 is equipped with a 50mm H-alpha filter, providing a narrow bandwidth that captures the sun's features in extraordinary detail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50mm Aperture:\u003c\/strong\u003e This aperture size is perfect for capturing a broad view of the sun, making it easier to observe and photograph various solar activities.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB1200 Blocking Filter:\u003c\/strong\u003e Ensures safe and effective solar observation by blocking harmful wavelengths and providing clear, sharp images.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Built to withstand frequent use, this filter system is crafted from high-quality materials for long-lasting performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Choose the LUNT LS50FHa B1200d2?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eLUNT LS50FHa B1200d2 H-alpha Solar Filter\u003c\/strong\u003e stands out for its ability to reveal the dynamic features of the sun with incredible clarity. Whether you are a seasoned astronomer or a passionate hobbyist, this filter provides the tools you need to explore and understand our nearest star like never before.\u003c\/p\u003e\n\u003ch2\u003eSafety and Quality\u003c\/h2\u003e\n\u003cp\u003eSafety is paramount when observing the sun. The LUNT LS50FHa B1200d2 includes a B1200 blocking filter that ensures you can observe safely, filtering out harmful solar radiation while delivering high-contrast, detailed images.\u003c\/p\u003e\n\u003ch2\u003eOrder Your LUNT LS50FHa B1200d2 Today\u003c\/h2\u003e\n\u003cp\u003eReady to elevate your solar observation experience? Purchase the \u003cstrong\u003eLUNT LS50FHa B1200d2 H-alpha Solar Filter\u003c\/strong\u003e from \u003ca href=\"https:\/\/www.darkclearskies.co.uk\" target=\"_blank\"\u003eDark Clear Skies\u003c\/a\u003e, your trusted UK-based astronomy retailer. Enjoy the benefits of fast shipping, local support, and expert advice. Don’t miss out on this opportunity to explore the sun’s wonders in stunning detail.\u003c\/p\u003e","brand":"Lunt","offers":[{"title":"Default Title","offer_id":44228736909489,"sku":"0550203","price":2998.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/lunt-ls50fha-b1200d2-h-alpha-solar-filter-detailed-solar-observation-925956.jpg?v=1718364447"},{"product_id":"lunt-ls50fha-h-alpha-double-stack-solar-filter","title":"LUNT LS50FHa H-alpha Double Stack Solar Filter","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e \u003cmeta content=\"width=device-width, initial-scale=1.0\" name=\"viewport\"\u003e \u003cmeta content=\"Explore the LUNT LS50FHa H-alpha Double Stack Solar Filter for exceptional solar observation. Featuring a 50mm aperture and double stack filter system, it reveals detailed solar prominences and surface granulation. Available at Dark Clear Skies, your trusted UK astronomy retailer. Buy now!\" name=\"description\"\u003e\u003c\/p\u003e\n\u003ch1\u003eLUNT LS50FHa H-alpha Double Stack Solar Filter\u003c\/h1\u003e\n\u003ch2\u003eExperience Superior Solar Observation\u003c\/h2\u003e\n\u003cp\u003eUnlock a new level of solar detail with the \u003cstrong\u003eLUNT LS50FHa H-alpha Double Stack Solar Filter\u003c\/strong\u003e. This advanced filter system is designed for those who seek the highest quality in solar observation. 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Whether you're an experienced astronomer or a dedicated enthusiast, this filter system provides the tools needed to explore our closest star with unprecedented clarity and detail.\u003c\/p\u003e\n\u003ch2\u003eSuperior Safety and Performance\u003c\/h2\u003e\n\u003cp\u003eObserving the sun safely is crucial. The LUNT LS50FHa includes a sophisticated double stack H-alpha filter system that not only enhances viewing quality but also ensures you can observe safely, filtering out harmful solar radiation and providing high-contrast images.\u003c\/p\u003e\n\u003ch2\u003eOrder Your LUNT LS50FHa H-alpha Double Stack Solar Filter Today\u003c\/h2\u003e\n\u003cp\u003eReady to elevate your solar observation experience? Purchase the \u003cstrong\u003eLUNT LS50FHa H-alpha Double Stack Solar Filter\u003c\/strong\u003e from \u003ca href=\"https:\/\/www.darkclearskies.co.uk\" target=\"_blank\"\u003eDark Clear Skies\u003c\/a\u003e, your trusted UK-based astronomy retailer. 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Its precise H-alpha filtering technology offers unparalleled clarity, making it a must-have for serious solar observers.\u003c\/p\u003e\n\u003ch2\u003eKey Features of the LUNT LS50FHa B600d2 H-alpha Solar Filter\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e50mm Aperture:\u003c\/strong\u003e The filter’s 50mm aperture is perfect for capturing detailed and wide views of the sun, allowing for comprehensive solar observations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB600 Blocking Filter:\u003c\/strong\u003e Equipped with a B600 blocking filter, it ensures optimal safety and performance, blocking harmful radiation while providing clear, sharp images of solar activities.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Resolution H-alpha Viewing:\u003c\/strong\u003e Specially designed to capture the H-alpha wavelength, this filter allows you to see intricate details of the sun’s chromosphere, including solar prominences and surface granulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Built from high-quality materials, the LUNT LS50FHa B600d2 is designed for long-lasting performance, ensuring you can enjoy detailed solar observations for years to come.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Choose the LUNT LS50FHa B600d2 H-alpha Solar Filter?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eLUNT LS50FHa B600d2 H-alpha Solar Filter\u003c\/strong\u003e is renowned for its ability to provide clear and safe solar observations. It’s an ideal choice for both amateur and seasoned astronomers who want to delve into the dynamic and fascinating world of solar observation. Here are some reasons to consider this filter:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnmatched Clarity:\u003c\/strong\u003e The filter’s design allows you to observe the sun’s features in exceptional detail, making your solar viewing sessions more informative and engaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Safety:\u003c\/strong\u003e Safety is paramount when observing the sun, and the B600 blocking filter ensures that your observations are conducted without risk, filtering out harmful wavelengths effectively.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Viewing Experience:\u003c\/strong\u003e With its ability to reveal detailed solar phenomena, the LUNT LS50FHa B600d2 significantly enhances your understanding and appreciation of the sun’s dynamic activities.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOrder Your LUNT LS50FHa B600d2 H-alpha Solar Filter Today\u003c\/h2\u003e\n\u003cp\u003eDon’t miss out on the opportunity to elevate your solar observation experience. Order the \u003cstrong\u003eLUNT LS50FHa B600d2 H-alpha Solar Filter\u003c\/strong\u003e from \u003ca href=\"https:\/\/www.darkclearskies.co.uk\" target=\"_blank\"\u003eDark Clear Skies\u003c\/a\u003e, your trusted UK-based astronomy retailer. Enjoy the benefits of fast shipping, local support, and expert advice. 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Perfect for both amateur and professional astronomers, the LUNT LS50FHa B1800d2 brings the dynamic and intricate features of the sun into sharp focus.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features of the LUNT LS50FHa B1800d2 H-alpha Solar Filter\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003e50mm Aperture:\u003c\/strong\u003e The 50mm aperture allows for a broad and detailed view of the sun, making it ideal for capturing a wide range of solar phenomena.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eB1800 Blocking Filter:\u003c\/strong\u003e The B1800 blocking filter ensures optimal safety by blocking harmful solar radiation, providing high-contrast and detailed images of the sun’s surface.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAdvanced H-alpha Technology:\u003c\/strong\u003e This filter is specifically designed to capture the H-alpha wavelength, allowing you to see intricate solar features such as prominences, filaments, and granulation with unparalleled clarity.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Crafted from high-quality materials, the LUNT LS50FHa B1800d2 is built to withstand regular use and deliver long-lasting performance for solar observations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose the LUNT LS50FHa B1800d2 H-alpha Solar Filter?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eLUNT LS50FHa B1800d2 H-alpha Solar Filter\u003c\/strong\u003e is ideal for those who seek detailed and safe solar observations. 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This premium filter system is perfect for those who want to explore the sun’s fascinating features in detail. Order yours today and start observing the sun like never before!\u003c\/p\u003e\n\n\n\n\u003c\/body\u003e","brand":"Lunt","offers":[{"title":"Default Title","offer_id":44228805099697,"sku":"0550205","price":3698.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/lunt-ls50fha-b1800d2-h-alpha-solar-filter-premium-solar-observations-198163.jpg?v=1718364433"},{"product_id":"lunt-ls50fha-b1200d1-h-alpha-solar-filter","title":"LUNT LS50FHa B1200d1 H-alpha Solar Filter","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e \u003cmeta name=\"description\" content=\"Explore the LUNT LS50FHa B1200d1 H-alpha Solar Filter for premium solar observations. Featuring a 50mm aperture and B1200 blocking filter, it provides clear, detailed views of solar prominences and surface features. Perfect for both amateur and professional astronomers. Order now!\"\u003e\u003c\/p\u003e\n\u003ch1\u003eLUNT LS50FHa B1200d1 H-alpha Solar Filter\u003c\/h1\u003e\n\u003ch2\u003ePremium Solar Viewing with the LUNT LS50FHa B1200d1\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eLUNT LS50FHa B1200d1 H-alpha Solar Filter\u003c\/strong\u003e is an exceptional choice for those looking to explore the sun’s intricate features in great detail. This high-performance filter system offers a 50mm aperture and includes a B1200 blocking filter, providing clear and safe views of solar prominences, filaments, and surface granulation. It’s ideal for both amateur and professional astronomers who wish to observe the sun with precision and clarity.\u003c\/p\u003e\n\u003ch2\u003eKey Features of the LUNT LS50FHa B1200d1 H-alpha Solar Filter\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e50mm Aperture:\u003c\/strong\u003e The filter’s 50mm aperture allows for a broad and detailed view of the sun, making it perfect for capturing a wide range of solar phenomena.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB1200 Blocking Filter:\u003c\/strong\u003e Equipped with a B1200 blocking filter, this system ensures optimal safety by blocking harmful solar radiation and providing high-contrast, sharp images of the sun’s features.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced H-alpha Filtering:\u003c\/strong\u003e The H-alpha filter technology specifically targets the H-alpha wavelength, allowing you to see intricate solar details such as prominences, filaments, and granulation with exceptional clarity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Built from high-quality materials, the LUNT LS50FHa B1200d1 is designed to withstand regular use, offering long-lasting performance and reliability for solar observations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Choose the LUNT LS50FHa B1200d1 H-alpha Solar Filter?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eLUNT LS50FHa B1200d1 H-alpha Solar Filter\u003c\/strong\u003e is renowned for its superior performance and safety features, making it an excellent choice for solar observation. Here’s why it stands out:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnmatched Clarity:\u003c\/strong\u003e Provides clear and detailed views of the sun’s surface features, enhancing your solar observation experience.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Safety:\u003c\/strong\u003e The B1200 blocking filter ensures safe viewing by effectively blocking harmful wavelengths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Viewing Experience:\u003c\/strong\u003e With the ability to capture fine details of solar activities, the LUNT LS50FHa B1200d1 significantly improves your understanding and appreciation of the sun’s dynamic features.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho Should Consider the LUNT LS50FHa B1200d1?\u003c\/h2\u003e\n\u003cp\u003eWhether you’re a beginner or an experienced astronomer, the \u003cstrong\u003eLUNT LS50FHa B1200d1 H-alpha Solar Filter\u003c\/strong\u003e is designed to meet a wide range of needs:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmateur Astronomers:\u003c\/strong\u003e Easy to use and highly effective, making it perfect for those just starting out in solar observation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Astronomers:\u003c\/strong\u003e Offers the precision and quality required for detailed research and educational purposes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEducators and Students:\u003c\/strong\u003e Ideal for classroom settings, providing a hands-on experience to understand solar dynamics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eMaintenance and Care\u003c\/h2\u003e\n\u003cp\u003eTo ensure the longevity and optimal performance of your \u003cstrong\u003eLUNT LS50FHa B1200d1 H-alpha Solar Filter\u003c\/strong\u003e, follow these maintenance tips:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRegular Cleaning:\u003c\/strong\u003e Clean the lens and filters with a soft, lint-free cloth to avoid scratches and ensure clear viewing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProper Storage:\u003c\/strong\u003e Store the filter in a dry, cool place when not in use to protect it from dust and moisture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle with Care:\u003c\/strong\u003e Handle the filter carefully to prevent damage to the delicate optical components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications and Uses\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eLUNT LS50FHa B1200d1 H-alpha Solar Filter\u003c\/strong\u003e is versatile and can be used for various solar observation purposes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolar Prominences and Filaments:\u003c\/strong\u003e Observe and study the dynamic features of solar prominences and filaments with unparalleled clarity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSunspot Activity:\u003c\/strong\u003e Monitor and record sunspot activities and their evolution over time, providing valuable data for solar studies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEducational Demonstrations:\u003c\/strong\u003e Perfect for educational settings, allowing students to observe and understand solar phenomena in real-time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAstrophotography:\u003c\/strong\u003e Capture stunning images of the sun's surface and features, making it an excellent tool for solar astrophotography enthusiasts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCustomer Reviews and Testimonials\u003c\/h2\u003e\n\u003cp\u003eHere’s what some of our satisfied customers have to say about the \u003cstrong\u003eLUNT LS50FHa B1200d1 H-alpha Solar Filter\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\"The LUNT LS50FHa B1200d1 provides the best solar views I've ever seen! The clarity and detail are simply amazing.\" - \u003cem\u003eJohn D.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\"As a professional astronomer, I appreciate the high quality and precision of this filter. It's perfect for my solar research.\" - \u003cem\u003eDr. Emily R.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\"A fantastic tool for both education and personal use. My students love seeing the sun’s features up close!\" - \u003cem\u003eProfessor Alan K.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003ch2\u003eWarranty and Support\u003c\/h2\u003e\n\u003cp\u003eWhen you purchase the \u003cstrong\u003eLUNT LS50FHa B1200d1 H-alpha Solar Filter\u003c\/strong\u003e, you are backed by a comprehensive warranty and excellent customer support:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e The filter comes with a manufacturer’s warranty that covers defects and ensures peace of mind.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomer Support:\u003c\/strong\u003e Our dedicated support team is available to assist you with any questions or issues, ensuring a smooth and enjoyable experience.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOrder Your LUNT LS50FHa B1200d1 H-alpha Solar Filter Today\u003c\/h2\u003e\n\u003cp\u003eDon’t miss out on the opportunity to elevate your solar observation experience with the \u003cstrong\u003eLUNT LS50FHa B1200d1 H-alpha Solar Filter\u003c\/strong\u003e. This premium filter system is perfect for those who want to explore the sun’s fascinating features in greater detail. \u003cstrong\u003eOrder yours today\u003c\/strong\u003e and start observing the sun like never before!\u003c\/p\u003e","brand":"Lunt","offers":[{"title":"Default Title","offer_id":44228821287089,"sku":"0550204","price":2998.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/lunt-ls50fha-b1200d1-h-alpha-solar-filter-premium-solar-observations-330295.jpg?v=1718364428"},{"product_id":"baader-7-5nm-540nm-solar-continuum-filter-for-enhanced-solar-observation","title":"Baader 7.5nm 540nm Solar Continuum Filter for Enhanced Solar Observation","description":"\u003cp\u003e \u003c\/p\u003e\n\u003ch1\u003eBaader 7.5nm 540nm Solar Continuum Filter\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eBaader 7.5nm Solar Continuum Filter\u003c\/strong\u003e with a central wavelength of 540nm is crafted to improve solar observation and imaging. It enhances contrast, minimizes atmospheric turbulence effects, and is ideal for monochromatic solar photography.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e7.5nm Bandwidth:\u003c\/strong\u003e Narrowband design enhances solar photosphere details, offering clearer, high-contrast images.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentral Wavelength of 540nm:\u003c\/strong\u003e Optimized for green wavelengths, where lenses produce the sharpest images and the human eye is most sensitive.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Recommended for use with additional solar filters like the Baader Herschel Prism or AstroSolar Safety Film for safe solar observation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMonochrome Imaging:\u003c\/strong\u003e Provides significant contrast gains in monochrome cameras and apochromatic systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Sizes:\u003c\/strong\u003e 1.25″ and 2″\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategories:\u003c\/strong\u003e Solar Astronomy, Filters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e 2961580\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrice Range:\u003c\/strong\u003e £101.00 – £170.00\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe Baader 7.5nm Solar Continuum Filter acts as a narrowband photosphere filter, ideal for solar observations in white light. 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Unlike typical filters, AstroSolar film is mounted stress-free to maintain high precision, ensuring no compromise in image quality. These filters are particularly valuable for high-magnification solar work, maintaining diffraction-limited performance.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Baader AstroSolar Safety Film (OD 5.0)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Cell:\u003c\/strong\u003e Temperature-compensated with fibre-reinforced plastic rings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Compatibility:\u003c\/strong\u003e 80mm - 280mm telescope tubes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e IR-rejecting front ring with protective edges\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eNote on Safety\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Read the included instructions carefully before use. Ensure proper mounting and secure all safety straps. 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Provides 100% UV and IR protection, reduces sunlight intensity by 99.999%.\" name=\"description\"\u003e\u003c\/p\u003e\n\u003cheader\u003e\u003c\/header\u003e\u003cmain\u003e\n\u003csection class=\"product-overview\"\u003e\n\u003ch3\u003e\u003cstrong\u003eSafe Solar Observation:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe AstroSolar® Silver\/Gold Solar Viewer provides \u003cstrong\u003e100% UV-protection\u003c\/strong\u003e and \u003cstrong\u003e100% IR-protection\u003c\/strong\u003e, reducing sunlight intensity by 99.999%. Made in Germany, this bundle ensures safe, high-quality solar viewing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"product-details\"\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBundle includes:\u003c\/strong\u003e AstroSolar® Silver\/Gold Film for direct viewing and one piece of AstroSolar® Safety Film 5.0 for use with additional optics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptical Density:\u003c\/strong\u003e 5.0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e CE \/ ISO certified, meets EN ISO 12312-2:2015 standards for safe solar viewing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLanguages:\u003c\/strong\u003e Instructions in English, German, French, and Spanish.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"product-options\"\u003e\n\u003ch2\u003eAvailable Pack Sizes\u003c\/h2\u003e\n\u003cp\u003eChoose your pack size:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e10pc \u0026amp; A4\u003c\/li\u003e\n\u003cli\u003e3pc \u0026amp; A4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"product-info\"\u003e\n\u003ch2\u003eAdditional Information\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e 2459298\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCategory:\u003c\/strong\u003e Solar Astronomy\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTag:\u003c\/strong\u003e AstroSolar Viewers and Films\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.5 kg\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"social-share\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e","brand":"Baader","offers":[{"title":"10pcs + A4","offer_id":53633918140792,"sku":"2459299","price":70.0,"currency_code":"GBP","in_stock":false},{"title":"3pc + A4","offer_id":53633918173560,"sku":"2459298","price":25.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/baader_astrosolar_safety_film_and_solar_viewers_bundle_front.jpg?v=1730389285"},{"product_id":"baader-astrosolar-eco-size-safety-film-5-0-solar-observation-film","title":"Baader AstroSolar® ECO-size Safety Film 5.0 - Solar Observation Film","description":"\u003cnav\u003e\u003c\/nav\u003e\n\u003ch3\u003e\u003cstrong\u003eAstroSolar® ECO-size Safety Film 5.0 \u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e For solar observation and photography at high magnification. Size: approx. 140 x 155 mm, includes DIY instructions and cutting template. This film is telescope quality with an Optical Density (OD) of 5.0, making it safe for visual solar observation with additional optics and imaging.\u003c\/p\u003e\n\u003cp\u003eThis high-precision film consistently achieves strehl ratios of 94-96% in interferometric tests, performing optically similar to a Fluorite Triplet Lens by Carl Zeiss or Astro Physics. On the market for over 25 years, it is the only film material that maintains the optical wavefront quality without reducing sharpness or contrast, even with high magnification. Suitable for small telescopes, finders, binoculars, spotting scopes, and camera lenses.\u003c\/p\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSKU: 2459286\u003c\/li\u003e\n\u003cli\u003eUsage: Visual solar observation and imaging\u003c\/li\u003e\n\u003cli\u003eAstroSolar Film: AstroSolar Safety Film\u003c\/li\u003e\n\u003cli\u003eOptical Density: 5.0\u003c\/li\u003e\n\u003cli\u003eInner Diameter \/ Clear Aperture (mm): approx. 140 x 155 mm\u003c\/li\u003e\n\u003cli\u003eSolar Wavelength: Whitelight (integral light)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader","offers":[{"title":"Default Title","offer_id":53635043197304,"sku":"2459286","price":18.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/baader_astrosolar_eco_size_safety_film_5.0_package.jpg?v=1782295879"},{"product_id":"baader-astrosolar-safety-film-5-0-100x50-cm-solar-filter","title":"Baader AstroSolar Safety Film 5.0 - 100x50 cm Solar Filter","description":"\u003csection\u003e\n\u003ch2\u003eProduct Overview.\u003c\/h2\u003e\n\u003cp\u003eAstro Solar® Safety Film 5.0 for solar observation and high-magnification photography.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 100 x 50 cm (~ 40 x 20 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptical Density (OD):\u003c\/strong\u003e 5.0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Quality:\u003c\/strong\u003e Produces strehl ratios of 94 to 96 percent, comparable to high-end lenses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Ideal for use with astronomical telescopes, binoculars, and photographic tele-lenses.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eProduct Features\u003c\/h2\u003e\n\u003cp\u003eFor over 25 years, Baader's Astro Solar Safety Film has been the trusted choice for solar observation, offering unmatched optical performance that maintains high magnification and detail without reducing sharpness or contrast. This film is uniquely designed not to alter the optical wavefront, providing an experience similar to high-quality Fluorite Triplet lenses.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.046 kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUsage:\u003c\/strong\u003e Visual solar observation and imaging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilm Type:\u003c\/strong\u003e Astro Solar Safety Film\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear Aperture:\u003c\/strong\u003e ca. 100 x 50 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolar Wavelength:\u003c\/strong\u003e White light (integral light)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/section\u003e","brand":"Baader","offers":[{"title":"Default Title","offer_id":53635074883960,"sku":"2459282","price":77.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/baader_astrosolar_safety_film_5_0_roll_with_scissors.jpg?v=1730391706"},{"product_id":"astrosolar-safety-film-5-0-premium-solar-observation-film","title":"AstroSolar® Safety Film 5.0 - Premium Solar Observation Film","description":"\u003cheader\u003e\u003c\/header\u003e\n\u003csection\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe AstroSolar® Safety Film 5.0 is specifically designed for safe and high-quality solar observation and photography. 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This filter allows for the shortest exposure times, making it ideal for high-resolution digital videography and the \"lucky imaging\" technique, which minimizes atmospheric turbulence.\u003c\/p\u003e\n\u003ch2\u003eAttention: Important Usage Information\u003c\/h2\u003e\n\u003cp\u003eAstroSolar PHOTO Film OD 3.8 is \u003cstrong\u003eNOT intended for visual observation of the sun\u003c\/strong\u003e. 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Direct viewing through this film without proper equipment can cause serious eye damage. 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Ideal for monochrome cameras and advanced telescopes, this filter is optimized for safe, high-resolution solar photography.\" name=\"description\"\u003e\u003c\/p\u003e\n\u003ch3\u003eThe new Baader Calcium GEN-II filter lets you observe the interesting border region between the photosphere, visible in white light, and the sun's chromosphere, exclusive to narrow-band H-alpha filters.\u003c\/h3\u003e\n\u003ch3\u003eEnhanced Solar Detail with Baader Calcium GEN-II\u003c\/h3\u003e\n\u003cp\u003eIn addition to familiar structures like sunspots, this filter allows you to see the chromospheric network across the sun's surface, supergranulation cells, and Ellerman Bombs. These features enhance your solar observation experience.\u003c\/p\u003e\n\u003ch2\u003eSafety Notice: Camera-Only Observations\u003c\/h2\u003e\n\u003cp\u003eSince the calcium emission line at 394 nm is in the near UV, this filter is for camera use only. \u003cstrong\u003eWarning:\u003c\/strong\u003e Never use this filter for direct visual observation, as harmful UV radiation can damage the eye.\u003c\/p\u003e\n\u003ch2\u003eOptimal Camera and Telescope Pairing\u003c\/h2\u003e\n\u003cp\u003eThe Baader Calcium GEN-II Filter performs best with monochrome cameras and mirror telescopes. While refractors with fast f\/ratios may not be optimized for this part of the spectrum, they can still yield excellent results. Note that unmodified DSLRs may require extended exposure times.\u003c\/p\u003e\n\u003ch2\u003eCompatible Solar Filters and Accessories\u003c\/h2\u003e\n\u003cp\u003eAll calcium filters need an additional solar filter. The Baader GEN-II package includes a sheet of \u003cstrong\u003eAstroSolar Photo Film OD 3.8\u003c\/strong\u003e (20×30 cm), so you can build a solar filter without additional purchases. Options like the BDSF Baader Digital Solar Filter OD 3.8 and Herschel prisms are also compatible.\u003c\/p\u003e\n\u003ch2\u003eUpgraded from K-Line Filter\u003c\/h2\u003e\n\u003cp\u003eThe Calcium GEN-II Filter replaces the older K-Line Filter, offering improved quality with a narrower half-bandwidth of 5 nm. A single filter is now sufficient, eliminating the need for stacked filters and making it easier to use in filter wheels.\u003c\/p\u003e\n\u003ch2\u003eProduct Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCMOS-optimized for increased contrast and matched quantum efficiency\u003c\/li\u003e\n\u003cli\u003eReflex-Blocker™ coatings for freedom from halos under all conditions\u003c\/li\u003e\n\u003cli\u003eStandard thickness for parfocality, with blackened edges for minimal reflection\u003c\/li\u003e\n\u003cli\u003eLife-Coat™ hard coatings for durability in adverse environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eExperience unmatched solar imaging with the Baader Calcium GEN-II Filter, crafted for professional-grade solar observation and photography.\u003c\/p\u003e","brand":"Baader","offers":[{"title":"Default Title","offer_id":53635131212152,"sku":"2961590","price":245.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/baader_calcium_gen_ii_filter_1_25_inch.jpg?v=1730394271"},{"product_id":"baader-d-erf-energy-rejection-filters-for-h-alpha-solar-observation","title":"Baader D-ERF Energy Rejection Filters for H-alpha Solar Observation","description":"\u003ch1\u003eBaader Energy Rejection Filter (D-ERF) - H-Alpha Solar Observation Filter\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eBaader Energy Rejection Filter (D-ERF)\u003c\/strong\u003e is specifically designed for H-alpha solar observation, allowing telescopes to achieve full-aperture resolving power. This filter significantly reduces the thermal energy entering the telescope, protecting your solar spectrum filter and minimizing thermally-induced seeing effects for a more stable and detailed observation experience.\u003c\/p\u003e\n\u003ch2\u003eAdvanced Coating Technology\u003c\/h2\u003e\n\u003cp\u003eEach Baader D-ERF filter is crafted with precision using the world's most advanced optical coating technology. The filter layers are applied with a 43-layer dielectric DWDM-coating, ensuring only a “cool” 45nm-wide red light beam around the H-alpha wavelength reaches the solar filter system. Every filter undergoes rigorous quality checks on a Carl Zeiss optical bench in Germany, ensuring unmatched performance and durability.\u003c\/p\u003e\n\u003ch2\u003eOptimized for Heat and Scratch Resistance\u003c\/h2\u003e\n\u003cp\u003eThe D-ERF filter is made from clear BK7 glass, polished to match objective-lens standards. With all reflection coatings applied to one side, it effectively blocks unwanted wavelengths from 280nm to 1500nm while maintaining a 45nm spectral window around the H-alpha wavelength. This high-quality design keeps heat load low and ensures scratch resistance, extending the filter’s life and reliability for solar observation.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransmission Range:\u003c\/strong\u003e 610 – 690 nm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Thickness (without cell):\u003c\/strong\u003e 12.5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHBW (Halfbandwidth):\u003c\/strong\u003e 80 nm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCWL (Central Wavelength):\u003c\/strong\u003e 650 nm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAR-Coating:\u003c\/strong\u003e Dielectrically coated, planeoptically polished\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Usage:\u003c\/strong\u003e IR-Cut, Solar, Specialty, UV-Cut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Shape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Size Options:\u003c\/strong\u003e 75mm, 90mm, 110mm, 135mm, 160mm, 180mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAvailable Sizes\u003c\/h3\u003e\n\u003cp\u003eThe Baader D-ERF filters are available in multiple sizes to fit various telescopes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e75mm: Ø 75 mm ± 0.05 mm\u003c\/li\u003e\n\u003cli\u003e90mm: Ø 89.9 mm ± 0.05 mm\u003c\/li\u003e\n\u003cli\u003e110mm: Ø 109.9 mm ± 0.05 mm\u003c\/li\u003e\n\u003cli\u003e135mm: Ø 134.9 mm ± 0.05 mm\u003c\/li\u003e\n\u003cli\u003e160mm: Ø 159.9 mm ± 0.05 mm\u003c\/li\u003e\n\u003cli\u003e180mm: Ø 179.9 mm ± 0.05 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Choose the Baader D-ERF Filter?\u003c\/h3\u003e\n\u003cp\u003eThe Baader D-ERF filter is the ultimate choice for serious solar astronomers. It not only enhances solar image quality by reducing heat-induced distortions but also protects delicate H-alpha filters from excessive thermal energy. With its scratch-resistant coating and durability, this filter is built to last, offering reliable performance across a variety of telescope setups.\u003c\/p\u003e","brand":"Baader","offers":[{"title":"75mm","offer_id":53635148022136,"sku":"2459241D","price":271.0,"currency_code":"GBP","in_stock":true},{"title":"90mm","offer_id":53635148054904,"sku":"2459242D","price":391.0,"currency_code":"GBP","in_stock":true},{"title":"110mm","offer_id":53635148087672,"sku":"2459243D","price":482.0,"currency_code":"GBP","in_stock":true},{"title":"135mm","offer_id":53635148120440,"sku":"2459244D","price":774.0,"currency_code":"GBP","in_stock":true},{"title":"160mm","offer_id":53635148153208,"sku":"2459245D","price":963.0,"currency_code":"GBP","in_stock":true},{"title":"180mm","offer_id":53635148185976,"sku":"2459246D","price":1427.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/baader_solar_spectrum_derf_filters_collection.jpg?v=1730395489"},{"product_id":"antlia-solar-discover-cak-calcium-k-5a-imaging-solar-filter-assembly","title":"Antlia Solar Discover CaK Calcium-K 5A Imaging Solar Filter Assembly","description":"\u003ch1\u003eAntlia Solar Discover CaK Calcium-K 5A Imaging Solar Filter Assembly\u003c\/h1\u003e\n\u003cp\u003eThe Antlia Solar Discover 5Å CaK assembly incorporates a set of light-reducing filters to reduce solar heat ingress for safe operation during solar imaging. It is specifically engineered to enhance imaging contrast for Plages, Light Bridges, features prominent in the CaK 393.3nm line and sunspots.\u003c\/p\u003e\n\u003cp\u003eThe Antlia 5Å Ultra Narrow Bandpass Filter is built in, it features a clear aperture of D12mm (B1200) and a wavelength centered on the Calcium II K-Line at 393.3nm. With its ultra-narrow full width at half maximum (FWHM) of 0.5nm, it enables the capture of details in the Chromosphere.\u003c\/p\u003e\n\u003cp\u003eInstallation is similar to the Antlia CaK 3nm Solar Herschel Wedge, with the telescope attached at one end and the camera at the another. The metal tube machined from aircraft aluminum CNN and oxidized. The filters are assembled within a fully enclosed tube, preventing stray light into it.\u003c\/p\u003e\n\u003ch2\u003eImportant Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIf you do not use the Barlow lens, your telescope must has a focal ratio ＞7.\u003c\/li\u003e\n\u003cli\u003eOptional 2X,3X and 5X Barlow lenses are available, Antlia specifically designed for Solar Discover 5Å CaK ; please order them separately if required. Please refer to the installation diagram and an installation video can be supplied for your reference.\u003c\/li\u003e\n\u003cli\u003eOptional 50mm and 70mm extension tube are provided by Antlia for better focus. please order them separately if required.\u003c\/li\u003e\n\u003cli\u003eWhen you are using a zenith mirror, or Barlow lens supplied by other manufacturer, the ERF filter must be installed in the correct position for safe operation. Please refer to the installation diagram.\u003c\/li\u003e\n\u003cli\u003eWhen you are using a telescope with an aperture ＞100mm, you need to use additional light reduction solutions, such as ERF filters，solar safety films, lowering the telescope aperture for safe operation while using Solar Discover 5Å CaK; If without the extra light reduction solution, the Solar Discover 5Å CaK can only used with REFRACTORS up to 100mm aperture.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct Installation Diagram\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ANTLIA\/CaK\/SolarDiscover5ACaK-antlia-solar-discover-cak-calcium-k-5%C3%A5-imaging-solar-filter-assembly-diagram.webp\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ANTLIA\/CaK\/SolarDiscover5ACaK-antlia-solar-discover-cak-calcium-k-5%C3%A5-imaging-solar-filter-assembly-diagram.webp\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eAbout Visual Observation\u003c\/h2\u003e\n\u003cp\u003eThe bandpass of CaK (393.3 nm) is almost invisible to the human eyes, hence, the Antlia Solar Discover 5Å CaK assembly is primarily used for solar imaging and not recommended for visual observation due to the difficulty of many to visually see information that CaK has to offer.\u003c\/p\u003e\n\u003cp\u003eIn addition, the IR coating range of our products is slightly different from the ISO 12312-2 Standard for Solar Viewers, please see the following chart and refer to ISO 12312-2 Standard for Solar Viewers (https:\/\/eclipse.aas.org\/eye-safety\/iso12312-2)\u003c\/p\u003e\n\u003cp\u003eFor tough technical requirements and safety considerations, we do not recommend Solar Discover 5Å CaK assembly for visual observation.If you need to use the product for visual observation, it is important to ensure that all filters built into the assembly are in good condition for safety.\u003c\/p\u003e\n\u003cp\u003ePlease contact Antlia if you have any questions.\u003c\/p\u003e\n\u003ctable border=\"0\" cellspacing=\"0\" width=\"676\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\" valign=\"center\" width=\"372\"\u003e\n\u003cp\u003e\u003cstrong\u003eISO12312-2 Transmittance Requirements\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"303\"\u003e\n\u003cp\u003e\u003cstrong\u003eAntlia Transmittance Requirements\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e(Solar Discover 5Å CaK， Solar Discover 3nm CaK Assembly，Dualband Ha, CaK and CaH filter Assembly，ERF)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003e\u003cstrong\u003eRequirements\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"141\"\u003e\n\u003cp\u003e\u003cstrong\u003eWavelength Range\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"303\"\u003e\n\u003cp\u003e\u003cstrong\u003eWavelength Range\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003eTmax%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003e0.0032%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd rowspan=\"2\" valign=\"center\" width=\"141\"\u003e\n\u003cp\u003e380-780nm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd rowspan=\"2\" valign=\"center\" width=\"303\"\u003e\n\u003cp\u003e380-780nm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003eTmin%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003e0.000061%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003eTmax%（UVB）\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003e0.0032%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"141\"\u003e\n\u003cp\u003e280-315nm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"303\"\u003e\n\u003cp\u003e280-315nm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003eTmax%（UVA）\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003e0.0032%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"141\"\u003e\n\u003cp\u003e315-380nm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"303\"\u003e\n\u003cp\u003e315-380nm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003eTmax%（IR）\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003e3%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"141\"\u003e\n\u003cp\u003e780-2000nm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"303\"\u003e\n\u003cp\u003e780-1700nm\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\u003cstrong\u003eWarranty: 3-years\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDisassembly of the assembly is prohibited and voids warranty. Any repair\/returns\/exchange for this item is not accepted once it has been disassembled.\u003c\/p\u003e\n\u003ch2\u003eProduct Structure Diagram\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable cellpadding=\"0\" cellspacing=\"0\" id=\"picParametersTable\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003ch2\u003eImaging Sample Photo:\u003c\/h2\u003e\n\u003cp\u003e\u003cimg alt=\"5Å sample photo.jpg\" height=\"1289\" src=\"https:\/\/20564242.s21i.faiusr.com\/2\/2\/ABUIABACGAAg89PqrwYowIGy_wcw8Qs4iQo.jpg\" width=\"1521\"\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Antlia","offers":[{"title":"No Barlow","offer_id":54920616771960,"sku":"SolarDiscover5ACaK","price":921.0,"currency_code":"GBP","in_stock":true},{"title":"with x2 Barlow Lens","offer_id":54920614740344,"sku":"SolarDiscover5ACaK-2xBarlow","price":974.0,"currency_code":"GBP","in_stock":true},{"title":"With x3 Barlow Lens","offer_id":54920614707576,"sku":"SolarDiscover5ACaK-3xBarlow","price":974.0,"currency_code":"GBP","in_stock":true},{"title":"With x5 Barlow Lens","offer_id":54920614674808,"sku":"SolarDiscover5ACaK-5xBarlow","price":984.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/SolarDiscover5ACaK-antlia-solar-discover-cak-calcium-k-5a-imaging-solar-filter-assembly-2-1000x1000w.webp?v=1738600075"},{"product_id":"antlia-solar-discover-dual-band-ha-cak-and-cah-filter-assembly-mini","title":"Antlia Solar Discover Dual Band Ha, CaK and CaH Filter Assembly - Mini","description":"\u003ch1\u003eAntlia Solar Discover Dual Band Ha, CaK and CaH Filter Assembly - Mini\u003c\/h1\u003e\n\u003cp\u003eThe Antlia Solar Discover Dualband (Ha, CaK, and CaH) filter assembly comes in both standard and mini versions. It is specifically designed for solar photosphere photography, effectively enhancing contrast and sharpness in solar imaging. This results in greater visibility of surface details and highlights of sunspots, while also providing higher contrast for solar faculae.\u003c\/p\u003e\n\u003cp\u003eThe complete assembly comes with a Antlia Energy Rejection Filter (ERF) filter, functions to block UV and IR light, which allows the desired wavelengths Ha 656.3nm, CaK 393.3nm, and CaH 396.8nm to pass through.\u003c\/p\u003e\n\u003cp\u003eIn addition, necessary ND filter is already manufacture installed in the tube.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eProduct Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNew tube structure design is used for the Antlia Solar Discover Dualband filter assembly，installation is similar to the Antlia CaK 3nm Solar Herschel Wedge, with the telescope attached at one end and the camera at the another. The filters are assembled in a fully closed tube and the metal tube machined from aircraft aluminum CNN and oxidized. No stray light can escape from this.\u003c\/li\u003e\n\u003cli\u003eCompared to other solar reducing films, the Antlia Solar Discover Dualband filter assembly offers superior advantages: it enables higher contrast for solar imaging, higher resolution of the solar surface, and the design less susceptible to wear and tear. Additionally, it's user-friendly, ensuring ease of use, and boasts an extended lifespan for your equipments used for solar imaging.\u003c\/li\u003e\n\u003cli\u003eIt can be directly used for solar Photosphere imaging, such as sunspots.\u003c\/li\u003e\n\u003cli\u003e1.25\" and 2\" Adapters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Antlia Solar Discover Dualband Ha, CaK and CaH filter assembly combines the 1.25'' and 2'' adapter used in astrophotography for easier and faster connection of telescopes and cameras. The standard version is compatible with both 1.25'' and 2'' adapters, while the mini version is designed with 1.25'' adapter.\u003c\/p\u003e\n\u003ch2\u003eProduct Installation Diagram\u003c\/h2\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/catalog\/product\/ANTLIA\/CaK\/ANT-SolDis-HaCaKCaH-MINI-antlia-solar-discover-dual-band-ha,-cak-and-cah-filter-assembly-mini-diagram.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eImportant Notes\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eWhen you are using a zenith mirror, the ERF filter must be installed in the correct position for safe operation. Please refer to the installation diagram.\u003c\/p\u003e\n\u003cp\u003e- When you are using a telescope with an aperture ＞100mm, you need to use additional light reduction solutions, such as ERF filters，solar safety films, lowering the telescope aperture for safe operation while using Solar Discover Dualband Ha, CaK and CaH filter Assembly; If without the extra light reduction solution, the Solar Discover Discover Dualband Assembly can only used with REFRACTORS up to 100mm aperture.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eDue to different batches, the mini version will have 2 appearances, the function and installation are the same.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eAbout Visual Observation\u003c\/h2\u003e\n\u003cp\u003eThe IR coating range of our products is slightly different from the ISO 12312-2 Standard for Solar Viewers, please see the following chart and refer to ISO 12312-2 Standard for Solar Viewers (https:\/\/eclipse.aas.org\/eye-safety\/iso12312-2).\u003c\/p\u003e\n\u003cp\u003eFor tough technical requirements and safety considerations, we do not recommend Solar Discover Dualband Ha, CaK and CaH filter assembly for visual observation. If you need to use the product for visual observation, it is important to ensure that all filters built into the assembly are in good condition for safety.\u003c\/p\u003e\n\u003cp\u003ePlease contact Antlia if you have any question.\u003c\/p\u003e\n\u003ctable border=\"0\" cellspacing=\"0\" width=\"676\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\" valign=\"center\" width=\"372\"\u003e\n\u003cp\u003e\u003cstrong\u003eISO12312-2 Transmittance Requirements\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"303\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAntlia Transmittance Requirements\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e(Solar Discover 5Å CaK， Solar Discover 3nm CaK Assembly，Dualband Ha, CaK and CaH filter Assembly，ERF)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003e\u003cstrong\u003eRequirements\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"141\"\u003e\n\u003cp\u003e\u003cstrong\u003eWavelength Range\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"303\"\u003e\n\u003cp\u003e\u003cstrong\u003eWavelength Range\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003e\u003cstrong\u003eTmax%\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003e\u003cstrong\u003e0.0032%\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd rowspan=\"2\" valign=\"center\" width=\"141\"\u003e\n\u003cp\u003e\u003cstrong\u003e380-780nm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd rowspan=\"2\" valign=\"center\" width=\"303\"\u003e\n\u003cp\u003e\u003cstrong\u003e380-780nm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003e\u003cstrong\u003eTmin%\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003e\u003cstrong\u003e0.000061%\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003e\u003cstrong\u003eTmax%（UVB）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003e\u003cstrong\u003e0.0032%\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"141\"\u003e\n\u003cp\u003e\u003cstrong\u003e280-315nm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"303\"\u003e\n\u003cp\u003e\u003cstrong\u003e280-315nm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003e\u003cstrong\u003eTmax%（UVA）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003e\u003cstrong\u003e0.0032%\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"141\"\u003e\n\u003cp\u003e\u003cstrong\u003e315-380nm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"303\"\u003e\n\u003cp\u003e\u003cstrong\u003e315-380nm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003e\u003cstrong\u003eTmax%（IR）\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"116\"\u003e\n\u003cp\u003e\u003cstrong\u003e3%\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"141\"\u003e\n\u003cp\u003e\u003cstrong\u003e780-2000nm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"303\"\u003e\n\u003cp\u003e\u003cstrong\u003e780-1700nm\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\u003cstrong\u003eWarranty: 3-years\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDisassembly of the assembly is prohibited and voids warranty. Any repair\/returns\/exchange for this item is not accepted once it has been disassembled.\u003c\/p\u003e\n\u003ch2\u003eSpectrum Curve\u003c\/h2\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/catalog\/product\/ANTLIA\/CaK\/ANT-SolDis-HaCaKCaH-MINI-antlia-solar-discover-dual-band-ha,-cak-and-cah-filter-assembly-mini-spectrum.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eImaging Sample Photo\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg alt=\"Sample Photo-61.jpg\" height=\"1000\" src=\"https:\/\/20564242.s21i.faiusr.com\/2\/2\/ABUIABACGAAgqKPrrwYoq4TYqQYw6Ac46Ac.jpg\" width=\"1000\"\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Antlia","offers":[{"title":"Default Title","offer_id":54920557134200,"sku":"ANT-SolDis-HaCaKCaH-MINI","price":104.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/ANT-SolDis-HaCaKCaH-MINI-antlia-solar-discover-dual-band-ha_-cak-and-cah-filter-assembly-mini-1-1000x1000w.jpg?v=1738602568"},{"product_id":"antlia-solar-discover-dualband-energy-rejection-filter-erf-2","title":"Antlia Solar Discover Dualband Energy Rejection Filter (ERF) - 2\"","description":"\u003ch1\u003eAntlia Solar Discover Dualband Energy Rejection Filter (ERF) - 2\"\u003c\/h1\u003e\n\u003cp\u003eThe Antlia Dualband Solar Energy Rejection Filter is designed by combining Hydrogen Alpha, Calcium K-Line and Calcium H-Line in one dualband filter. It is the filter used in conjunction with Antlia Solar Discover 3nm CaK, Solar, 5Å CaK or similar product to protect your solar imaging equipments from high temperature and bandpass shifting by rejecting massive heat before it enters telescope when imaging and observing solar.\u003c\/p\u003e\n\u003cp\u003eThey are very effective at blocking the UV and IR part of the spectrum, and allow the desired wavelengths of Ha 656.3nm, CaK 393.3nm and CaH 396.8nm to pass through.\u003c\/p\u003e\n\u003ch2\u003eProduct Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFWHM 25nm with CWL at H-alpha wavelength of 656.3nm; Transmission: T＞95%\u003c\/li\u003e\n\u003cli\u003eFHWM 25nm with CWL at CaK wavelength 393.3nm covering Calcium K-Line 393.3nm and Calcium K-Line 396.8nm; Transmission: T＞90%\u003c\/li\u003e\n\u003cli\u003eCoating Range: 200-1700nm wavelengths\u003c\/li\u003e\n\u003cli\u003eFinished with the most advanced multicoatings\u003c\/li\u003e\n\u003cli\u003eCoated on heat resistant double-polished substrate\u003c\/li\u003e\n\u003cli\u003eAntlia ERF 130mm, 150mm，200mm filters are mounted in a housing\/cell to hold it in front of a telescope tube\u003c\/li\u003e\n\u003cli\u003eAntlia ERF 2’’ mounted filter is supposed to be installed at the back end of a refractor telescope, but before any other optical element(s), i.e. reducer, flattener, Barlow, star diagonal, prism etc.\u003c\/li\u003e\n\u003cli\u003eTransmitted Wavefront: Lambda\/4 or better.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable border=\"0\" cellspacing=\"0\" width=\"633\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\"\u003e\n\u003cp\u003eAntlia Dual ERF Filter\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"153\"\u003e\n\u003cp\u003eH-alpha\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"309\"\u003e\n\u003cp\u003eCaK \u0026amp; CaH\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\"\u003e\n\u003cp\u003eFWHM\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"153\"\u003e\n\u003cp\u003e25nm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"309\"\u003e\n\u003cp\u003e25nm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\"\u003e\n\u003cp\u003eCWL (Central Wavelength)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"153\"\u003e\n\u003cp\u003eHa 656.3nm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"309\"\u003e\n\u003cp\u003eCaK 393nm covering CaK 393.3nm \u0026amp; CaH 396.8nm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\"\u003e\n\u003cp\u003ePeak Transmission\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"153\"\u003e\n\u003cp\u003e90%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"center\" width=\"309\"\u003e\n\u003cp\u003e90%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\"\u003e\n\u003cp\u003eCoating Range\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" valign=\"center\" width=\"462\"\u003e\n\u003cp\u003e200-1700nm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\"\u003e\n\u003cp\u003eFilter Thickness\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" valign=\"center\" width=\"462\"\u003e\n\u003cp\u003e10mm+\/-0.05mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"center\"\u003e\n\u003cp\u003eSize\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" valign=\"center\" width=\"462\"\u003e\n\u003cp\u003eERF glass 130mm with cell, for 130-190mm Fixed diameter\u003c\/p\u003e\n\u003cp\u003eERF glass 150mm with cell, for 150-220mm Fixed diameter\u003c\/p\u003e\n\u003cp\u003eERF glass 200mm with cell, for 200-250mm Fixed diameter\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\u003ch2\u003eSpectral Transmission\u003c\/h2\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ANTLIA\/ERF\/antlia-dual-band-erf-transmission.webp\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eImportant Notes\u003c\/h2\u003e\n\u003cp\u003e- The Antlia Dual ERF filters cannot be used on its own. It must be used together with the professionally made solar imaging equipments, which have their own complete blocking filters assembled. Such as Antlia Solar Discover 5Å CaK, Solar Discover 3nm CaK Assembly, Dualband Ha, CaK and CaH filter Assembly;\u003c\/p\u003e\n\u003cp\u003e- Please do not use the Antlia Dualband ERF filter by itself for visual observation;\u003c\/p\u003e\n\u003cp\u003e- 2’’ ERF filter must working on 110mm or smaller refractors.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eAvailable Sizes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e2\" (in a standard 2\" filter cell),\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDia130mm,\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDia150mm\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDia200mm\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty: 3-years\u003c\/strong\u003e\u003c\/p\u003e","brand":"Antlia","offers":[{"title":"Default Title","offer_id":54920566767992,"sku":"SolarDiscover-DB-ERF-2inch","price":104.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/antlia-solar-discover-dualband-energy-rejection-filter-_erf_-2-inch-1000x1000w.webp?v=1782294744"},{"product_id":"svbony-sv229-140mm-solar-eclipse-filter","title":"SVBONY SV229 140 mm Solar Eclipse Filter – ISO 12312-2 Certified","description":"\u003cdiv class=\"rte product-description svbony-sv229-solar-filter\" style=\"text-align: start;\"\u003e\n\u003cp\u003e\u003cstrong\u003eSVBONY SV229 Solar Eclipse Filter (140 mm)\u003c\/strong\u003e is a full-aperture metal solar filter designed for safe observation of the Sun, solar eclipses, and sunspots. It conforms to \u003cstrong\u003eISO 12312-2:2015\u003c\/strong\u003e and provides reliable protection for both visual observation and solar imaging.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/w9183c-_20250806100050_7525_480x480.jpg?v=1771336216\" alt=\"Round solar cap on a white background\" style=\"float: none;\"\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e140 mm full-aperture solar filter\u003c\/strong\u003e\u003cbr\u003eDesigned for larger telescopes, providing safe and evenly illuminated solar views.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO 12312-2:2015 certified\u003c\/strong\u003e\u003cbr\u003eMeets international safety standards for direct solar observation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-quality optical coating\u003c\/strong\u003e\u003cbr\u003eProduces clear, high-contrast solar images while blocking harmful UV and IR radiation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminium frame construction\u003c\/strong\u003e\u003cbr\u003eRigid metal frame offers superior durability and stability compared with plastic designs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure adjustable fit\u003c\/strong\u003e\u003cbr\u003eThree metal clamping screws with protective caps ensure a snug and reliable attachment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"product-media\"\u003e\u003cimg style=\"width: 100%; height: auto; object-fit: contain;\" loading=\"lazy\" alt=\"SVBONY SV229 140mm solar eclipse filter metal cap\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/6383564104258199945021770.jpg?v=1771336217\"\u003e\u003c\/div\u003e\n\u003ch2\u003eCompatible Telescope Sizes\u003c\/h2\u003e\n\u003cp\u003eThe SV229 features an \u003cstrong\u003einside diameter of 140 mm\u003c\/strong\u003e and is designed to fit optical tubes with an \u003cstrong\u003eouter diameter between 118 mm and 159 mm\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv class=\"product-media\"\u003e\u003cimg style=\"width: 100%; height: auto; object-fit: contain;\" loading=\"lazy\" alt=\"Solar filter diameter compatibility illustration\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/6386098253408169282981440.jpg?v=1771336216\"\u003e\u003c\/div\u003e\n\u003ch2\u003eSolar Observation Applications\u003c\/h2\u003e\n\u003ch3\u003eSolar Eclipses\u003c\/h3\u003e\n\u003cdiv class=\"product-media\"\u003e\u003cimg style=\"width: 100%; height: auto; object-fit: contain;\" loading=\"lazy\" alt=\"Solar eclipse observation using telescope filter\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/6383564143314961839514942.jpg?v=1771336216\"\u003e\u003c\/div\u003e\n\u003ch3\u003eSunspots\u003c\/h3\u003e\n\u003cdiv class=\"product-media\"\u003e\u003cimg style=\"width: 100%; height: auto; object-fit: contain;\" loading=\"lazy\" alt=\"Sunspot observation comparison with solar filter\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/6383564143375972695292704.jpg?v=1771336217\"\u003e\u003c\/div\u003e\n\u003ch3\u003eGeneral Solar Observation\u003c\/h3\u003e\n\u003cp\u003eThis solar filter provides crisp views of sunspots, solar granulation, and eclipses while rejecting harmful ultraviolet and infrared radiation. The Sun appears in a natural orange colour for comfortable visual observing and imaging.\u003c\/p\u003e\n\u003cdiv class=\"product-media\"\u003e\u003cimg style=\"width: 100%; height: auto; object-fit: contain;\" loading=\"lazy\" alt=\"Solar observation through telescope with SV229 filter\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/6383564143436267692910970.jpg?v=1771336217\"\u003e\u003c\/div\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eCompatible with the \u003cstrong\u003eSVBONY SV550-122 mm telescope\u003c\/strong\u003e and other telescopes within the supported outer diameter range. Recommended for solar observation and sunspot viewing below 100× magnification.\u003c\/p\u003e\n\u003cdiv class=\"product-media\"\u003e\u003cimg style=\"width: 100%; height: auto; object-fit: contain;\" loading=\"lazy\" alt=\"SV229 solar filter mounted on SVBONY SV550 telescope\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/6383564143498447277937364.jpg?v=1771336217\"\u003e\u003c\/div\u003e\n\u003ch2\u003eSafety \u0026amp; Usage\u003c\/h2\u003e\n\u003cp\u003eAlways inspect the filter before use. Do not use if the filter is damaged, punctured, torn, or separated from the frame in any way.\u003c\/p\u003e\n\u003cdiv class=\"product-media\"\u003e\u003cimg style=\"width: 100%; height: auto; object-fit: contain;\" loading=\"lazy\" alt=\"How to use and inspect a solar telescope filter\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/6386098249943424793569170.jpg?v=1771336216\"\u003e\u003c\/div\u003e\n\u003ch2\u003eCertification\u003c\/h2\u003e\n\u003cp\u003eSVBONY solar filters are listed by the \u003cstrong\u003eAmerican Astronomical Society (AAS)\u003c\/strong\u003e as safe for solar viewing when used correctly.\u003c\/p\u003e\n\u003cdiv class=\"product-media\"\u003e\u003cimg style=\"width: 100%; height: auto; object-fit: contain;\" loading=\"lazy\" alt=\"American Astronomical Society solar filter safety listing\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/6384418895770053881769628.webp?v=1771336216\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-media\"\u003e\u003cimg style=\"width: 100%; height: auto; object-fit: contain;\" loading=\"lazy\" alt=\"SV229 solar eclipse filter packaging\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/w9183c-6_20250806100051_2065.jpg?v=1771336218\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Svbony","offers":[{"title":"Default Title","offer_id":55455796429176,"sku":"W9183C","price":24.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/w9183c-_20250806100050_7525.jpg?v=1771336216"},{"product_id":"vaonis-vespera-all-sky-filters-bundle","title":"Vaonis Vespera All-Sky Filters Bundle (Dual Band, CLS \u0026 Solar)","description":"\u003cp\u003eEnhance your astronomical observations with the \u003cstrong\u003eVaonis Vespera All-Sky Filters Bundle\u003c\/strong\u003e, a versatile set of three precision filters designed to optimise stargazing and astrophotography in a wide range of observing conditions.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg style=\"margin-bottom: 16px;\" alt=\"Vaonis Vespera All-Sky Filters Bundle with Dual Band, CLS and Solar filters\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/vaonis-vespera-all-sky-filters-bundle-with-dual-band_-cls-and-solar-filters-1100x1100w_1_480x480.jpg?v=1771691852\"\u003e\u003c\/p\u003e\n\u003cp\u003eDeveloped specifically for the Vespera smart telescope series by \u003cstrong\u003e:contentReference[oaicite:0]{index=0}\u003c\/strong\u003e, this bundle allows you to adapt effortlessly to urban, rural, and daytime observing environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded filters:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• \u003cstrong\u003eDual Band Filter\u003c\/strong\u003e\u003cbr\u003eIdeal for astrophotography, this filter isolates specific emission wavelengths to significantly enhance contrast and detail in nebulae and other deep-sky objects.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"City light suppression filter for Vaonis Vespera\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Light-pollution-filter-Vespera-front-1100x1100w_480x480.webp?v=1771691852\"\u003e\u003c\/p\u003e\n\u003cp\u003e• \u003cstrong\u003eCity Light Suppression (CLS) Filter\u003c\/strong\u003e\u003cbr\u003eDesigned for observations under light-polluted skies, this filter reduces the impact of artificial lighting, delivering clearer, more vibrant celestial images from urban locations.\u003c\/p\u003e\n\u003cp\u003e• \u003cstrong\u003eSolar Filter\u003c\/strong\u003e\u003cbr\u003eSafely observe and photograph the Sun with this precision-crafted solar filter, allowing detailed views of sunspots and solar surface activity when used correctly.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Dual band and light pollution filter installed on Vespera\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Light-pollution-filter-on-Vespera-installed-1100x1100h_480x480.webp?v=1771691851\"\u003e\u003c\/p\u003e\n\u003cp\u003eWhether observing from the city, the countryside, or during daylight hours, this all-in-one filter bundle provides the flexibility to explore the sky with exceptional clarity and safety.\u003c\/p\u003e","brand":"Vaonis","offers":[{"title":"Default Title","offer_id":55468884656504,"sku":"AC021+AC022+AC023","price":748.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/vaonis-vespera-all-sky-filters-bundle-with-dual-band_-cls-and-solar-filters-1100x1100w_1.jpg?v=1771691852"},{"product_id":"baader-astrosolar-clearwhite-safety-film-od-5-1-100x50cm","title":"Baader AstroSolar ClearWhite Safety Film OD 5.1, 100 x 50 cm","description":"\u003cp\u003eBaader AstroSolar® ClearWhite Safety Film OD 5.1 is a premium white-light solar filter film for safe direct solar observation when correctly mounted and used. This 100 x 50 cm sheet is designed for making front-mounted objective filters for telescopes, binoculars, spotting scopes and camera lenses, as well as suitable handheld viewing filters.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/s031028_visible.webp?v=1783425396\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eWith an optical density of OD 5.1, the film reduces sunlight by more than 99.999%, approximately a 1:125,000 reduction factor. It produces a clear white solar image with high sharpness and contrast, making it suitable for observing sunspots, limb darkening and photospheric detail in white light.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/2422003_Astrosolar-Clearwhite-100x50_main.jpg?v=1783424947\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLarge 100 x 50 cm sheet for custom solar filter construction\u003c\/li\u003e\n\u003cli\u003eOD 5.1 optical density for direct solar observation when correctly mounted\u003c\/li\u003e\n\u003cli\u003eReduces sunlight by more than 99.999%\u003c\/li\u003e\n\u003cli\u003eDesigned for front-mounted filters on telescopes, binoculars, spotting scopes and camera lenses\u003c\/li\u003e\n\u003cli\u003eProduces a neutral, clear white solar image without the orange or blue colour cast of simpler filters\u003c\/li\u003e\n\u003cli\u003eMeets the applicable transmittance requirements of EN ISO 12312-2:2015 for filters intended for direct observation of the Sun\u003c\/li\u003e\n\u003cli\u003eSuccessor to Baader’s long-established AstroSolar® Safety Film OD 5.0\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor telescope, binocular, spotting scope or camera use, the filter must always be mounted securely in front of the objective or entrance aperture. It must never be used at the eyepiece, behind the objective, near the focal point, or with damaged film. Inspect the film and holder before every use, and do not use it if there are tears, holes, creases, major scratches, loose areas or signs of abrasion.\u003c\/p\u003e\n\u003cp\u003eA single undamaged layer is sufficient when correctly mounted. The film should not be stretched tight; a slight waviness is normal and does not reduce optical performance.\u003c\/p\u003e","brand":"Baader","offers":[{"title":"Default Title","offer_id":55598121189752,"sku":"2422003","price":115.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/2422003_Astrosolar-Clearwhite-100x50_main_97cc7c0f-7e20-402b-be01-d95555fb8b10.jpg?v=1783425066"},{"product_id":"baader-astrosolar-clearwhite-safety-film-od-5-1-117x117cm","title":"Baader AstroSolar ClearWhite Safety Film OD 5.1, Giant Size 117 x 117 cm","description":"\u003cp\u003eBaader AstroSolar ClearWhite Safety Film OD 5.1 is a giant-size 117 x 117 cm white-light solar filter film for making front-mounted filters for larger telescopes, binoculars, spotting scopes and camera lenses. With OD 5.1 optical density, it reduces sunlight by more than 99.999% and produces a clear white solar image with high sharpness and contrast when correctly mounted and used.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/2422004_Astrosolar-Clearwhite-117_main_98e4758a-097d-4200-8de9-6b5e41a8c838.jpg?v=1783425066\" alt=\"AstroSolar Clear White Giant Size roll-up solar panel backsheet, shown partially unrolled with its kraft paper core visible, accompanied by two instruction sheets on a white background.\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGiant-size 117 x 117 cm sheet for custom solar filter construction\u003c\/li\u003e\n\u003cli\u003eOD 5.1 optical density with approximately 1:125,000 light reduction\u003c\/li\u003e\n\u003cli\u003eSuitable for direct solar observation when used undamaged in a secure holder\u003c\/li\u003e\n\u003cli\u003eFor front-mounted objective filters only; not for eyepiece or rear-mounted use\u003c\/li\u003e\n\u003cli\u003eMeets applicable EN ISO 12312-2:2015 transmittance requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/Astrosolar-Clearwhite_wide.jpg?v=1783424947\" alt=\"AstroSolar iCleanWhite OD 5.1 safety film rolls and a large unrolled sheet on a white background, with dimension callouts for large-size (100 x 50 cm) and giant-size (117 x 117 cm) sizes.\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/s031028_visible.webp?v=1783425396\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"read-more-root-URo\"\u003e\n\u003cdiv class=\"read-more-containerOpened-yJY read-more-container-sMW read-more-containerDefault-GDH overflow-hidden relative\"\u003e\n\u003cdiv class=\"undefined global-readmore-innercontainer\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"row-contained-h3Y row-root-J3v\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"columnGroup-root-fOH pagebuilder-column-group\"\u003e\n\u003cdiv class=\"columnGroup-root-fOH pagebuilder-column-line\"\u003e\n\u003cdiv class=\"column-root-7Tj pagebuilder-column\"\u003e\n\u003ch3 class=\"\"\u003eBaader AstroSolar® ClearWhite Safety Film OD 5.1\u003c\/h3\u003e\n\u003cdiv class=\"text-root-0Rs\" role=\"presentation\"\u003e\n\u003cp class=\"isSelectedEnd\"\u003eThe Baader AstroSolar\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eClearWhite Safety Film OD 5.1 is a high-quality, double-sided metallized solar filter film designed for direct solar observation as well as for constructing front-mounted objective filters for telescopes, binoculars, spotting scopes, and camera lenses.\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003eThe film has an optical density of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eOD 5.1\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand reduces the intensity of sunlight by approximately\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e99.9992%\u003c\/strong\u003e, corresponding to a reduction factor of about\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e125,000\u003c\/strong\u003e. It complies with the applicable transmittance requirements of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eEN ISO 12312-2:2015\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003efor filters intended for direct observation of the sun.\u003c\/p\u003e\n\u003cp\u003eCompared to the previous AstroSolar\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eSafety Film OD 5.0, the new ClearWhite version provides an even clearer, whiter solar image along with a slightly higher optical density. Sunspots, granulation, and fine structures of the photosphere can be seen sharply and richly contrasted when used with suitable optical equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch4 class=\"\"\u003eClear white solar image with high optical quality\u003c\/h4\u003e\n\u003cdiv class=\"text-root-0Rs\" role=\"presentation\"\u003e\n\u003cp class=\"isSelectedEnd\"\u003eAstroSolar\u003csup\u003e®\u003cspan\u003e \u003c\/span\u003e\u003c\/sup\u003eClearWhite Safety Film OD 5.1 was developed to provide a particularly neutral, clear white solar image. Undesirable bluish or orange color casts, which may occur with simpler solar filters, are largely avoided.\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003eThe film is manufactured from a special streak-free and bubble-free substrate and achieves an optical quality comparable to high-quality plane-parallel glass filters despite a thickness of only\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e0.012 mm\u003c\/strong\u003e. The material is not ordinary “Mylar” and was developed for exceptionally high uniformity and optical purity.\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003edouble-sided coating\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eensures especially uniform filter performance and reduces the effect of isolated microscopic irregularities in the metallization. A single layer of AstroSolar\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eClearWhite Safety Film OD 5.1 is sufficient to produce a safe solar filter with excellent image sharpness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"column-root-7Tj pagebuilder-column\"\u003e\n\u003cfigure class=\"image-root-6hD\"\u003e\u003cpicture\u003e\u003cimg class=\"image-img-rH-\" srcset=\"\/media\/wysiwyg\/astrosolar-clearwhite-din.jpg?auto=webp\u0026amp;format=pjpg\u0026amp;quality=85 1x\" src=\"https:\/\/www.baader-planetarium.com\/media\/wysiwyg\/astrosolar-clearwhite-din.jpg?auto=webp\u0026amp;format=pjpg\u0026amp;quality=85\" title=\"\" alt=\"\" loading=\"lazy\"\u003e\u003c\/picture\u003e\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\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"row-contained-h3Y row-root-J3v\"\u003e\n\u003cdiv class=\"columnGroup-root-fOH pagebuilder-column-group\"\u003e\n\u003cdiv class=\"columnGroup-root-fOH pagebuilder-column-line\"\u003e\n\u003cdiv class=\"column-root-7Tj pagebuilder-column\"\u003e\n\u003ch3 class=\"\"\u003eFor direct solar observation and front-mounted objective filters\u003c\/h3\u003e\n\u003cdiv class=\"text-root-0Rs\" role=\"presentation\"\u003e\n\u003cp class=\"isSelectedEnd\"\u003eAstroSolar\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eClearWhite Safety Film OD 5.1 can be used for direct solar observation with the naked eye when handled correctly. This requires that the film is undamaged and used in a suitable, light-tight, and securely mounted holder.\u003c\/p\u003e\n\u003cp\u003eFor telescopes, binoculars, spotting scopes, and camera lenses, the film must only be used as a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003efront-mounted objective\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efilter. The filter must be positioned in front of the optical entrance aperture, securely cover the entire opening, and be protected against slipping, loosening, or being lifted by wind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch4 class=\"\"\u003eVisual and Photographic Use\u003c\/h4\u003e\n\u003cdiv class=\"text-root-0Rs\" role=\"presentation\"\u003e\n\u003cp\u003eThe AstroSolar\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eClearWhite Safety Film OD 5.1 is equally suitable for photography and visual observation. With the focal ratios of typical telescopes and camera lenses, exposure times are short enough to capture sharp images of the sun in single exposures or to perform lucky imaging. This is perfect for observing and photographing the sun under normal conditions as well as during the partial phases of solar eclipses.\u003c\/p\u003e\n\u003cp\u003eYou also do not need to worry when looking through a camera viewfinder, as this can be done safely when the filter is correctly installed in front of the optical system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"text-root-0Rs important-note\" role=\"presentation\"\u003e\n\u003cp\u003e\u003cstrong\u003eNever use solar filters at the eyepiece, behind the objective lens, at the focal point, or anywhere other than the front end of the optical system. Furthermore, never look through a telescope, binoculars, spotting scope, or camera while wearing eclipse glasses or using a handheld solar film filter.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"column-root-7Tj pagebuilder-column\"\u003e\n\u003cfigure class=\"image-root-6hD\"\u003e\u003cbr\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"row-contained-h3Y row-root-J3v\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"columnGroup-root-fOH pagebuilder-column-group\"\u003e\n\u003cdiv class=\"columnGroup-root-fOH pagebuilder-column-line\"\u003e\n\u003cdiv class=\"column-root-7Tj pagebuilder-column\"\u003e\n\u003ch3 class=\"\"\u003eConstruction of custom solar filters\u003c\/h3\u003e\n\u003cdiv class=\"text-root-0Rs\" role=\"presentation\"\u003e\n\u003cp class=\"isSelectedEnd\"\u003eHigh-quality solar filters for telescopes, binoculars, spotting scopes, and camera lenses can be made from AstroSolar\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eClearWhite Safety Film OD 5.1 in just a few simple steps.\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003eDetailed assembly instructions and safety information are included with every sheet of film. They are also available for download on this website. Stress-free mounting is essential: the film must not be stretched tight or pulled under tension. It should be mounted wrinkle-free, but without mechanical stress, in order to preserve its high optical quality. The film may sit slightly wavy or somewhat loose in the holder without negatively affecting optical performance.\u003c\/p\u003e\n\u003cp\u003eInspect both the film and the holder before each use. Do not use the film if it shows tears, holes, creases, major scratches, delamination, loose areas, or extensive wipe or abrasion marks. Damaged film must not be repaired and must be replaced immediately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"column-root-7Tj pagebuilder-column\"\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\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"row-contained-h3Y row-root-J3v\"\u003e\n\u003cdiv class=\"columnGroup-root-fOH pagebuilder-column-group\"\u003e\n\u003cdiv class=\"columnGroup-root-fOH pagebuilder-column-line\"\u003e\n\u003cdiv class=\"column-root-7Tj pagebuilder-column\"\u003e\n\u003ch3 class=\"\"\u003eSafety instructions for solar observation\u003c\/h3\u003e\n\u003cdiv class=\"text-root-0Rs\" role=\"presentation\"\u003e\n\u003cp class=\"isSelectedEnd\"\u003eNever look directly at the sun without a suitable and undamaged solar filter. Ordinary sunglasses, emergency blankets, CDs, photographic neutral density filters, or other untested materials are not suitable for visual solar observation, as they may transmit dangerous portions of invisible radiation that are not directly visible but can still cause permanent eye damage.\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003eA safe solar filter is also required during a partial or annular solar eclipse. Only during the brief phase of complete totality in a total solar eclipse — when the sun’s photosphere is entirely covered by the moon — may the solar corona be observed without a filter. As soon as any part of the solar disk becomes visible again, an appropriate solar filter must be used at all times.\u003c\/p\u003e\n\u003cp\u003eChildren may only use solar filters under adult supervision. Never leave solar filters, eclipse glasses, handheld viewers, solar telescopes, binoculars, or cameras unattended.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"columnGroup-root-fOH pagebuilder-column-line\"\u003e\n\u003cdiv class=\"column-root-7Tj pagebuilder-column\"\u003e\n\u003cfigure class=\"image-root-6hD\"\u003e\u003cpicture\u003e\u003cimg class=\"image-img-rH-\" srcset=\"\/media\/wysiwyg\/astrosolar-clearwhite-gallery-1.jpg?auto=webp\u0026amp;format=pjpg\u0026amp;quality=85 1x\" src=\"https:\/\/www.baader-planetarium.com\/media\/wysiwyg\/astrosolar-clearwhite-gallery-1.jpg?auto=webp\u0026amp;format=pjpg\u0026amp;quality=85\" title=\"\" alt=\"\" loading=\"lazy\"\u003e\u003c\/picture\u003e\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","brand":"Baader","offers":[{"title":"Default Title","offer_id":55598139343224,"sku":"2422004","price":365.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/2422004_Astrosolar-Clearwhite-117_main.jpg?v=1783424948"},{"product_id":"celestron-eclipsmart-6-inch-sct-solar-filter","title":"Celestron EclipSmart Solar Filter for 6-Inch SCT","description":"\u003cp\u003eThe \u003cstrong\u003eCelestron EclipSmart Solar Filter for 6-Inch SCT\u003c\/strong\u003e is a full-aperture white-light solar filter made specifically for compatible Celestron 6-inch Schmidt-Cassegrain telescopes. The scratch-resistant polymer filter meets ISO 12312-2:2015(E) and produces an orange image of the Sun.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:center;margin:25px 0;\"\u003e\u003cimg src=\"https:\/\/www.celestron.com\/cdn\/shop\/products\/94243_EclipSmart_Solar_Filter_Schmit-Cassegrain_6_01.jpg?v=1673894450\u0026amp;width=1600\" alt=\"Celestron EclipSmart Solar Filter for 6-Inch SCT complete product view\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/div\u003e\n\n\u003ch2\u003eDesigned for Celestron 6-Inch SCTs\u003c\/h2\u003e\n\n\u003cp\u003eThe 174mm internal diameter fits the front cell of the compatible Celestron models listed below. Do not assume fit from aperture alone: measure the actual telescope and confirm the retaining straps can be secured before pointing towards the Sun.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:center;margin:25px 0;\"\u003e\u003cimg src=\"https:\/\/www.celestron.com\/cdn\/shop\/products\/94243_EclipSmart_6SC_Filter_2.jpg?v=1673894450\u0026amp;width=1600\" alt=\"EclipSmart Solar Filter for 6-Inch SCT designed for celestron 6-inch scts detail\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/div\u003e\n\n\u003ch2\u003eWhite-Light Solar Observation\u003c\/h2\u003e\n\n\u003cp\u003eThe filter is intended for viewing the solar photosphere, including the solar disc, larger sunspots and eclipse progress. It does not provide hydrogen-alpha chromosphere or prominence views.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:center;margin:25px 0;\"\u003e\u003cimg src=\"https:\/\/www.celestron.com\/cdn\/shop\/products\/94243_EclipSmart_6SC_Filter_3.jpg?v=1673894450\u0026amp;width=1600\" alt=\"EclipSmart Solar Filter for 6-Inch SCT white-light solar observation detail\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/div\u003e\n\n\u003ch2\u003eSecure Full-Aperture Fit\u003c\/h2\u003e\n\n\u003cp\u003eTwo 1 × 4-inch hook-and-loop straps and four 1 × 1-inch tabs help secure the filter to the telescope. Fit and test the filter indoors before use, cover or remove all finder devices, and ensure it cannot be accidentally knocked or blown off.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:center;margin:25px 0;\"\u003e\u003cimg src=\"https:\/\/www.celestron.com\/cdn\/shop\/products\/94243_EclipSmart_6SC_Filter_4.jpg?v=1673894450\u0026amp;width=1600\" alt=\"EclipSmart Solar Filter for 6-Inch SCT secure full-aperture fit detail\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/div\u003e\n\n\u003ch2\u003eISO-Compliant Filter Material\u003c\/h2\u003e\n\n\u003cp\u003eThe American Paper Optics polymer filter material is stated by Celestron to meet ISO 12312-2:2015(E). Safe use depends on the complete assembly remaining intact, undamaged and correctly secured.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:center;margin:25px 0;\"\u003e\u003cimg src=\"https:\/\/www.celestron.com\/cdn\/shop\/products\/94243_EclipSmart_6SC_Filter_5.jpg?v=1673894450\u0026amp;width=1600\" alt=\"EclipSmart Solar Filter for 6-Inch SCT iso-compliant filter material detail\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/div\u003e\n\n\u003ch2\u003eInspect Before Every Session\u003c\/h2\u003e\n\n\u003cp\u003eDo not use the filter if the film or housing is scratched, torn, punctured, separated or otherwise damaged. Discard a damaged filter; do not attempt a temporary repair.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:center;margin:25px 0;\"\u003e\u003cimg src=\"https:\/\/www.celestron.com\/cdn\/shop\/products\/94243_EclipSmart_6SC_Filter_6.jpg?v=1673894450\u0026amp;width=1600\" alt=\"EclipSmart Solar Filter for 6-Inch SCT inspect before every session detail\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/div\u003e\n\n\u003ch2\u003eConfirmed Compatibility\u003c\/h2\u003e\n\u003cp\u003eCelestron states compatibility with the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eC6 optical tube assembly\u003c\/li\u003e\n  \u003cli\u003eNexStar 6SE\u003c\/li\u003e\n  \u003cli\u003eNexStar Evolution 6\u003c\/li\u003e\n  \u003cli\u003eAdvanced VX 6-inch SCT\u003c\/li\u003e\n  \u003cli\u003eInternational StarSense Explorer 6-inch SCT\u003c\/li\u003e\n  \u003cli\u003eSkyProdigy 6\u003c\/li\u003e\n  \u003cli\u003eInternational Astro Fi 6-inch SCT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility warning:\u003c\/strong\u003e Model names and nominal aperture alone are not sufficient for solar safety. Confirm the front-cell dimensions, undamaged filter condition and secure fit before use.\u003c\/p\u003e\n\n\u003ch2\u003eWhat Is Included?\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003eEclipSmart full-aperture solar filter for compatible Celestron 6-inch SCTs\u003c\/li\u003e\n  \u003cli\u003eTwo 1 × 4-inch hook-and-loop retaining straps\u003c\/li\u003e\n  \u003cli\u003eFour 1 × 1-inch adhesive retaining tabs\u003c\/li\u003e\n  \u003cli\u003eFive-language instruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e Only the items listed above are stated as included. A smartphone is not included with app-guided telescopes. Optional adapters, tripods, eyepieces and other accessories are sold separately unless explicitly listed.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\n\u003cdiv style=\"overflow-x:auto;margin:20px 0;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\u003ctbody\u003e\n  \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eFilter type\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eFull-aperture white-light solar filter\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;\"\u003eCompatibility\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eSelected Celestron 6-inch Schmidt-Cassegrain telescopes\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;\"\u003eSolar-filter standard\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eISO 12312-2:2015(E)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;\"\u003eFilter material\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eScratch-resistant polymer by American Paper Optics\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;\"\u003eSolar image colour\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eOrange\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;\"\u003eClear aperture\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e128.5mm (5.06 inches)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;\"\u003eExternal diameter\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e184mm (7.24 inches)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;\"\u003eInternal diameter\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e174mm (6.85 inches)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;\"\u003eOverall thickness\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e24mm (0.94 inches)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;\"\u003eRetaining system\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eTwo 1 × 4-inch straps and four 1 × 1-inch tabs\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;\"\u003eWeight\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e74g (2.61oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch2\u003eCritical Solar Safety\u003c\/h2\u003e\n\u003cdiv style=\"background:#fff4e5;border-left:4px solid #f28c00;padding:16px;margin:20px 0;\"\u003e\n  \u003cp style=\"margin-top:0;\"\u003e\u003cstrong\u003eNever point a telescope towards the Sun until this filter has been inspected, fitted over the full front aperture and secured so it cannot be removed accidentally.\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp\u003eInspect the filter in good light before every use. Do not use it if the film, housing or retaining system is scratched, punctured, torn, loose, separated or otherwise damaged. Cover or remove every finder device. Never use an eyepiece solar filter and never project an image of the Sun.\u003c\/p\u003e\n  \u003cp style=\"margin-bottom:0;\"\u003eSupervise children continuously and never leave a solar telescope unattended. Discard a damaged filter; do not attempt a temporary repair.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eInstruction Manuals\u003c\/h2\u003e\n\n\u003cp\u003eOfficial documents are supplied in \u003cstrong\u003eEnglish, French, German, Italian and Spanish\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:center;margin:25px 0;\"\u003e\n  \u003ca href=\"https:\/\/celestron-site-support-files.s3.us-east-1.amazonaws.com\/support_files\/94243_%2094244_94253_EclipSmart_Filter_Manual_5Lang_8-23.pdf\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"display:inline-block;background:#111;color:#fff;padding:14px 20px;margin:6px;text-decoration:none;border-radius:4px;font-weight:600;\"\u003eView \/ Download EclipSmart Filter Manual\u003c\/a\u003e\n\u003c\/div\u003e\n","brand":"Celestron","offers":[{"title":"Default Title","offer_id":55643747025272,"sku":"94243-CGL","price":59.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/01-official-celestron_f9a2ef06-6eb7-44d2-9b23-c9e2e915504c.jpg?v=1787998984"},{"product_id":"celestron-eclipsmart-8-inch-sct-edgehd-solar-filter","title":"Celestron EclipSmart Solar Filter for 8-Inch SCT and EdgeHD","description":"\u003cp\u003eThe \u003cstrong\u003eCelestron EclipSmart Solar Filter for 8-Inch SCT and EdgeHD\u003c\/strong\u003e is a full-aperture white-light solar filter for compatible Celestron 8-inch Schmidt-Cassegrain and EdgeHD telescopes. Its scratch-resistant polymer filter meets ISO 12312-2:2015(E) and produces an orange solar image.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:center;margin:25px 0;\"\u003e\u003cimg src=\"https:\/\/www.celestron.com\/cdn\/shop\/products\/94244_EclipSmart_Solar_Filter_Schmit-Cassegrain_8_1.jpg?v=1673894429\u0026amp;width=1600\" alt=\"Celestron EclipSmart Solar Filter for 8-Inch SCT and EdgeHD complete product view\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/div\u003e\n\n\u003ch2\u003eDesigned for Celestron 8-Inch SCT and EdgeHD Models\u003c\/h2\u003e\n\n\u003cp\u003eThe 225mm internal diameter is designed for the compatible Celestron telescope families listed below. Do not assume compatibility from nominal aperture alone; confirm the actual front-cell dimensions and secure fit.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:center;margin:25px 0;\"\u003e\u003cimg src=\"https:\/\/www.celestron.com\/cdn\/shop\/products\/94227_EclipSmart_8SC_Filter_2.jpg?v=1673894429\u0026amp;width=1600\" alt=\"EclipSmart Solar Filter for 8-Inch SCT \/ EdgeHD designed for celestron 8-inch sct and edgehd models detail\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/div\u003e\n\n\u003ch2\u003eWhite-Light Solar Observation\u003c\/h2\u003e\n\n\u003cp\u003eThe filter can show the solar disc, larger sunspots and eclipse progress in visible white light. It is not a hydrogen-alpha system and does not reveal chromosphere or prominence detail in the way a dedicated H-alpha solar telescope can.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:center;margin:25px 0;\"\u003e\u003cimg src=\"https:\/\/www.celestron.com\/cdn\/shop\/products\/94227_EclipSmart_8SC_Filter_3.jpg?v=1673894429\u0026amp;width=1600\" alt=\"EclipSmart Solar Filter for 8-Inch SCT \/ EdgeHD white-light solar observation detail\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/div\u003e\n\n\u003ch2\u003eSecure Full-Aperture Fit\u003c\/h2\u003e\n\n\u003cp\u003eTwo 1 × 4-inch hook-and-loop straps and four 1 × 1-inch tabs secure the housing. Fit and test it before pointing towards the Sun, cover or remove finder devices, and confirm that wind or contact cannot dislodge it.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:center;margin:25px 0;\"\u003e\u003cimg src=\"https:\/\/www.celestron.com\/cdn\/shop\/products\/94227_EclipSmart_8SC_Filter_4.jpg?v=1673894429\u0026amp;width=1600\" alt=\"EclipSmart Solar Filter for 8-Inch SCT \/ EdgeHD secure full-aperture fit detail\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/div\u003e\n\n\u003ch2\u003eISO-Compliant Filter Material\u003c\/h2\u003e\n\n\u003cp\u003eCelestron specifies American Paper Optics scratch-resistant polymer meeting ISO 12312-2:2015(E). The standard claim applies only while the complete filter remains undamaged and is used according to the manual.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:center;margin:25px 0;\"\u003e\u003cimg src=\"https:\/\/www.celestron.com\/cdn\/shop\/products\/94227_EclipSmart_8SC_Filter_5.jpg?v=1673894429\u0026amp;width=1600\" alt=\"EclipSmart Solar Filter for 8-Inch SCT \/ EdgeHD iso-compliant filter material detail\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/div\u003e\n\n\u003ch2\u003eInspect Before Every Session\u003c\/h2\u003e\n\n\u003cp\u003eInspect the film, housing and straps in good light. Do not use the filter if any part is scratched, punctured, torn, loose or separated. Discard a damaged solar filter rather than attempting a temporary repair.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:center;margin:25px 0;\"\u003e\u003cimg src=\"https:\/\/www.celestron.com\/cdn\/shop\/products\/94227_EclipSmart_8SC_Filter_6.jpg?v=1673894429\u0026amp;width=1600\" alt=\"EclipSmart Solar Filter for 8-Inch SCT \/ EdgeHD inspect before every session detail\" loading=\"lazy\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/div\u003e\n\n\u003ch2\u003eConfirmed Compatibility\u003c\/h2\u003e\n\u003cp\u003eCelestron states compatibility with the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eC8 optical tube assembly\u003c\/li\u003e\n  \u003cli\u003e8-inch EdgeHD optical tube assembly\u003c\/li\u003e\n  \u003cli\u003eNexStar 8SE\u003c\/li\u003e\n  \u003cli\u003eNexStar Evolution 8\u003c\/li\u003e\n  \u003cli\u003eNexStar Evolution 8 HD with StarSense\u003c\/li\u003e\n  \u003cli\u003eNexStar Evolution 8 HD 60th Anniversary limited edition\u003c\/li\u003e\n  \u003cli\u003eAdvanced VX 8-inch SCT\u003c\/li\u003e\n  \u003cli\u003eAdvanced VX 8-inch EdgeHD\u003c\/li\u003e\n  \u003cli\u003eCGEM II 8-inch SCT\u003c\/li\u003e\n  \u003cli\u003eCGEM II 8-inch EdgeHD\u003c\/li\u003e\n  \u003cli\u003eCPC GPS XLT 8\u003c\/li\u003e\n  \u003cli\u003eCPC Deluxe 8 EdgeHD\u003c\/li\u003e\n  \u003cli\u003eCGX 8-inch SCT\u003c\/li\u003e\n  \u003cli\u003eCGX 8-inch EdgeHD\u003c\/li\u003e\n  \u003cli\u003eLegacy CGEM 8-inch SCT and EdgeHD\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility warning:\u003c\/strong\u003e Model names and nominal aperture alone are not sufficient for solar safety. Confirm the front-cell dimensions, undamaged filter condition and secure fit before use.\u003c\/p\u003e\n\n\u003ch2\u003eWhat Is Included?\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003eEclipSmart full-aperture solar filter for compatible Celestron 8-inch SCT and EdgeHD telescopes\u003c\/li\u003e\n  \u003cli\u003eTwo 1 × 4-inch hook-and-loop retaining straps\u003c\/li\u003e\n  \u003cli\u003eFour 1 × 1-inch adhesive retaining tabs\u003c\/li\u003e\n  \u003cli\u003eFive-language instruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e Only the items listed above are stated as included. A smartphone is not included with app-guided telescopes. Optional adapters, tripods, eyepieces and other accessories are sold separately unless explicitly listed.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\n\u003cdiv style=\"overflow-x:auto;margin:20px 0;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\u003ctbody\u003e\n  \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;width:40%;\"\u003eFilter type\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eFull-aperture white-light solar filter\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;\"\u003eCompatibility\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eSelected Celestron 8-inch Schmidt-Cassegrain and EdgeHD telescopes\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;\"\u003eSolar-filter standard\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eISO 12312-2:2015(E)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;\"\u003eFilter material\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eScratch-resistant polymer by American Paper Optics\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;\"\u003eSolar image colour\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eOrange\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;\"\u003eClear aperture\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e176mm (6.93 inches)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;\"\u003eExternal diameter\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e235mm (9.25 inches)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;\"\u003eInternal diameter\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e225mm (8.86 inches; Celestron’s current page also displays 9.25 inches)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;\"\u003eOverall thickness\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e32mm (1.26 inches)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;\"\u003eRetaining system\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003eTwo 1 × 4-inch straps and four 1 × 1-inch tabs\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border:1px solid #ddd;background:#f5f5f5;\"\u003eWeight\u003c\/th\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e121g (4.27oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch2\u003eCritical Solar Safety\u003c\/h2\u003e\n\u003cdiv style=\"background:#fff4e5;border-left:4px solid #f28c00;padding:16px;margin:20px 0;\"\u003e\n  \u003cp style=\"margin-top:0;\"\u003e\u003cstrong\u003eNever point a telescope towards the Sun until this filter has been inspected, fitted over the full front aperture and secured so it cannot be removed accidentally.\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp\u003eInspect the filter in good light before every use. Do not use it if the film, housing or retaining system is scratched, punctured, torn, loose, separated or otherwise damaged. Cover or remove every finder device. Never use an eyepiece solar filter and never project an image of the Sun.\u003c\/p\u003e\n  \u003cp style=\"margin-bottom:0;\"\u003eSupervise children continuously and never leave a solar telescope unattended. Discard a damaged filter; do not attempt a temporary repair.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eInstruction Manuals\u003c\/h2\u003e\n\n\u003cp\u003eOfficial documents are supplied in \u003cstrong\u003eEnglish, French, German, Italian and Spanish\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:center;margin:25px 0;\"\u003e\n  \u003ca href=\"https:\/\/celestron-site-support-files.s3.us-east-1.amazonaws.com\/support_files\/94243_%2094244_94253_EclipSmart_Filter_Manual_5Lang_8-23.pdf\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"display:inline-block;background:#111;color:#fff;padding:14px 20px;margin:6px;text-decoration:none;border-radius:4px;font-weight:600;\"\u003eView \/ Download EclipSmart Filter Manual\u003c\/a\u003e\n\u003c\/div\u003e\n","brand":"Celestron","offers":[{"title":"Default Title","offer_id":55643747058040,"sku":"94244-CGL","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/01-official-celestron_e3575b95-808d-46c3-ac7e-ab2421ec7a28.jpg?v=1787999035"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/collections\/ChatGPT_Image_Aug_30_2026_03_54_24_PM_3a819005-6b82-4ae7-bf12-65681520519b.png?v=1788101981","url":"https:\/\/www.darkclearskies.co.uk\/collections\/solar-filters.oembed?page=2","provider":"Dark Clear Skies ","version":"1.0","type":"link"}