{"title":"Antlia Drawers, OAG \u0026 Accessories","description":"\u003cp\u003eExplore Antlia drawers, oag \u0026amp; accessories at Dark Clear Skies.\u003c\/p\u003e","products":[{"product_id":"antlia-oag-and-filter-drawer","title":"Antlia OAG and Filter Drawer","description":"\u003ch1\u003eAntlia OAG and Filter Drawer Assembly\u003c\/h1\u003e\n\u003cp\u003eThe Antlia OAG and Filter Drawer Assembly is an innovative accessory that integrates a filter drawer with an off-axis guider (OAG). It enables you to utilize your primary imaging camera and telescope for auto-guiding without the need for a heavy, additional guide scope. The OAG employs a small internal pick-off prism to reflect part of the incoming light from the telescope to an independent guide camera. Sharing the same optical path as the main imaging camera, the system effectively handles bending and tilting issues in your setup, ensuring superior tracking accuracy compared to a separate guide scope.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLarge pick-off prism (12x12mm) for compatibility with larger guiding sensors, offering a greater selection of guide stars.\u003c\/li\u003e\n\u003cli\u003eMono-block design with the OAG body directly connected to the filter drawer for added rigidity.\u003c\/li\u003e\n\u003cli\u003eSupports APS-C and Full Frame sensors.\u003c\/li\u003e\n\u003cli\u003eTotal thickness (including both side adapters): 37.5mm.\u003c\/li\u003e\n\u003cli\u003eOptimized for cameras with a 17.5mm back focus distance without requiring additional adapters.\u003c\/li\u003e\n\u003cli\u003eCNC-machined aluminium body provides a robust guiding platform.\u003c\/li\u003e\n\u003cli\u003eHigh-quality 1.25-inch helical focuser with 10mm travel range for precise guide star focus.\u003c\/li\u003e\n\u003cli\u003eAdjustable prism height to optimize field illumination for your auto guider based on sensor size.\u003c\/li\u003e\n\u003cli\u003eDovetail-threaded adapters secured with grub screws for 360° rotation and alignment with telescope and camera.\u003c\/li\u003e\n\u003cli\u003e360° rotatable OAG for locating guide stars with ease.\u003c\/li\u003e\n\u003cli\u003eIncludes a variety of adapters for versatile configurations: M42, M48, M54, and M68 male and female (no M42 female).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eThe Antlia OAG and Filter Drawer Assembly is compatible with multiple instruments and brands. Its application is not limited to any specific setup, making it a versatile choice for astrophotographers.\u003c\/p\u003e\n\u003ch2\u003eOptional Accessories\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFilter sliders: Dia50mm and 50x50mm.\u003c\/li\u003e\n\u003cli\u003eAdapter rings: B-48125, B-4836, B-4831, and other configurations available separately.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSchematic Diagram 01\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lp\/product\/ANTLIA\/antlia-oag-and-filter-drawer-assembly-schematic-1.webp\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003eSchematic Diagram 02\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ANTLIA\/antlia-oag-and-filter-drawer-assembly-1.webp\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003eConnecting Diagram\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ANTLIA\/antlia-oag-and-filter-drawer-assembly-6.webp\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003eThe Standard Antlia OAG and Filter Drawer Attached to Imaging Setup\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ANTLIA\/antlia-oag-and-filter-drawer-assembly-5.webp\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe OAG requires a telescope, imaging camera, autoguider, and a mount tracking equatorially with autoguiding capability. Please refer to Schematic diagram 02 to familiarize with the Antlia OAG.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/lj\/product\/ANTLIA\/antlia-oag-and-filter-drawer-assembly-4.webp\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eYou need to ensure that the distance from the prism to the main camera sensor is exactly equal to the distance from the prism to the guider sensor.\u003c\/p\u003e\n\u003ch3\u003eList of Parts included in the Antlia OAG\u0026amp; Filter Drawer set:\u003c\/h3\u003e\n\u003cp\u003e1 x Off-Axis Guider Body, 1 x Helical Focuser, 1 x 2-inch (M48*0.75) Filter Slider, 1 x M42-Male Adapter, 1 x M48-Male Adapter, 1 x M48-Female Adapter,1 x M54-Female Adapter, 1 x M54-Male Adapter, 1 x M68-Female Adapter, 1 x M68-Male Adapter, 1 x M42-6mm*1 for 12.5mm BFD, 1 x M42-1.25-27mm\u003c\/p\u003e\n\u003cp\u003eIf you want to replace the 2-inch (M48*0.75) Filter Slider with a Dia50mm or 50x50mm, please contact us before ordering.\u003c\/p\u003e","brand":"Antlia","offers":[{"title":"Default Title","offer_id":54837044019576,"sku":"ANT-OAG-FILTER-DRAWER","price":272.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/antlia-oag-and-filter-drawer-assembly-0-1000x1000h.webp?v=1782294700"},{"product_id":"antlia-filter-holder-2","title":"Antlia Filter Holder 2\"","description":"\u003ch1\u003eAntlia 2\" Extra Filter Holder \/ Filter Slider for OAG and Filter Drawer Assembly\u003c\/h1\u003e\n\u003cp\u003eEnhance your astrophotography setup with the Antlia 2\" Extra Filter Holder. This additional filter holder allows you to easily switch between multiple filters when used with the ANTLIA OAG and Filter Drawer Assembly, making it perfect for diverse imaging sessions.\u003c\/p\u003e\n\u003ch2\u003eProduct Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHolds standard 2\" mounted filters with 48mm threads for convenient use.\u003c\/li\u003e\n\u003cli\u003eOptional adapters (step-down rings) available for using 1.25\" mounted filters or 36mm and 31mm unmounted filters.\u003c\/li\u003e\n\u003cli\u003eOne filter holder is included with the ANTLIA OAG and Filter Drawer Assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Choose the Antlia 2\" Filter Holder?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePerfect for easily managing multiple filters during astrophotography sessions.\u003c\/li\u003e\n\u003cli\u003eAllows flexibility with various filter sizes, including 1.25\" and unmounted filters with optional adapters.\u003c\/li\u003e\n\u003cli\u003eSeamless compatibility with the ANTLIA OAG and Filter Drawer Assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOrder your Antlia 2\" Extra Filter Holder today and streamline your astrophotography experience with quick, easy filter changes.\u003c\/p\u003e","brand":"Antlia","offers":[{"title":"Default Title","offer_id":54837058175352,"sku":"ANT-OAG-B-M48","price":32.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/antlia-2-inch-extra-filter-holder-filter-slider-for-antlia-oag-and-filter-drawer-assembly-1-1000x1000w.webp?v=1782294547"},{"product_id":"antlia-filter-holder-50mm","title":"Antlia Filter Holder 50mm","description":"\u003ch1\u003eAntlia 50mm Extra Filter Holder \/ Filter Slider for OAG and Filter Drawer Assembly\u003c\/h1\u003e\n\u003cp\u003eThe Antlia 50mm Extra Filter Holder allows you to easily switch between multiple filters when used with the ANTLIA OAG and Filter Drawer Assembly. This filter holder is designed to hold 50mm round glass (unmounted) filters, making it perfect for those who require flexibility and convenience in their astrophotography setup.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eHolds 50mm round glass (unmounted) filters for precise and convenient filtering.\u003c\/li\u003e\n  \u003cli\u003eThree holes for securing bolts ensure the glass filter stays securely in place.\u003c\/li\u003e\n  \u003cli\u003eCompatible with the ANTLIA OAG and Filter Drawer Assembly for easy integration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose the Antlia 50mm Filter Holder?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eIdeal for astrophotographers who need to manage multiple unmounted filters efficiently.\u003c\/li\u003e\n  \u003cli\u003eDesigned for quick filter changes with secure filter mounting for safe use during imaging sessions.\u003c\/li\u003e\n  \u003cli\u003eSeamlessly integrates with the ANTLIA OAG and Filter Drawer Assembly, allowing for versatile astrophotography setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOrder your Antlia 50mm Extra Filter Holder today and enhance your astrophotography experience with effortless filter management.\u003c\/p\u003e\n","brand":"Antlia","offers":[{"title":"Default Title","offer_id":54837060632952,"sku":"ANT-OAG-B-50","price":32.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/antlia-2-inch-extra-filter-holder-filter-slider-for-antlia-oag-and-filter-drawer-assembly-2-1000x1000h_0f5d6504-47d2-4b43-88e5-a58e71abd5e3.webp?v=1782294554"},{"product_id":"antlia-1-25-adjustable-aperture-diaphragm","title":"Antlia 1.25\" Adjustable Aperture Diaphragm","description":"\u003ch1 class=\"page-title\"\u003e\u003cspan class=\"base\" data-ui-id=\"page-title-wrapper\"\u003eAntlia 1.25\" Adjustable Aperture Diaphragm for 5Å CaK Solar Discover Assembly\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003eWhen using the Solar Discover 5Å CaK Assembly, the Antlia 1.25\" variable aperture diaphragm helps filter out stray light, enhancing image contrast. It allows for real-time adjustment, reaching optimal contrast at approximately half open (D=12 see second image above), or it can be fine-tuned as needed for a specific condition.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdjustable aperture range: Dia 2.0 - 25mm\u003c\/li\u003e\n\u003cli\u003eAdapter: 1.25''\u003c\/li\u003e\n\u003cli\u003eOptical height: 34mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Antlia","offers":[{"title":"Default Title","offer_id":54920577876344,"sku":"ANT-AdjDiaphragm","price":68.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/AntliaApertureDiaphragmPicture1-1000x1000.webp?v=1738603189"},{"product_id":"antlia-70mm-extension-tube-for-solar-discover-cak-5a","title":"Antlia 70mm Extension Tube for Solar Discover CaK 5Å","description":"\u003ch1\u003eAntlia 70mm Extension Tube for Solar Discover CaK 5Å Assembly \u003c\/h1\u003e\n\u003cp\u003eThis is a 2\" extension tube with 70mm optical length for the Antlia Solar Discover 5Å CaK assembly. \u003c\/p\u003e\n\u003cp\u003eWhen you use the Antlia Solar Discover 5Å CaK assembly with a refractor telescope without a star diagonal (mirror diagonal), you will most likely need to compensate for that length to achieve focus. \u003c\/p\u003e\n\u003cp\u003eThis extension is available in two sizes, 50mm and 70mm optical length. \u003c\/p\u003e\n\u003cp\u003eThis product listing is for the 70mm version.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBrass compression ring\u003c\/li\u003e\n\u003cli\u003eBlack anodised, in and out\u003c\/li\u003e\n\u003cli\u003e3 x thumbscrews\u003c\/li\u003e\n\u003cli\u003eTotal length: 100mm\u003c\/li\u003e\n\u003cli\u003eOptical length: 70mm (although this can be slightly extended if you don't push it fully in into the focuser's eyepiece holder drawtube...be reasonable with this, but it might add an extra 10-15mm as the length of that part is 30mm)\u003c\/li\u003e\n\u003cli\u003eStandard 2\" filter thread at the bottom end\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Antlia","offers":[{"title":"Default Title","offer_id":54920594456952,"sku":"SolarDiscover70mmExtension","price":30.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/SolarDiscover70mmExtension-antlia-70mm-extension-tube-for-solar-discover-cak-5a-1000x1000.webp?v=1738603831"}],"url":"https:\/\/www.darkclearskies.co.uk\/collections\/antlia-drawers-oag-accessories.oembed","provider":"Dark Clear Skies ","version":"1.0","type":"link"}