{"title":"Visual Backs \u0026 Eyepiece Adapters","description":null,"products":[{"product_id":"celestron-1-25-universal-barlow-and-t-adapter","title":"Celestron 1.25\" Universal Barlow and T-Adapter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eThree-in-one design: 2x visual Barlow, prime focus T-adapter, and tele-extended T-adapter\u003c\/li\u003e\n\u003cli\u003eDoubles the magnification of any 1.25\" eyepiece\u003c\/li\u003e\n\u003cli\u003eConnects DSLR\/SLR cameras to a telescope for astrophotography\u003c\/li\u003e\n\u003cli\u003eStandard 1.25\" (32mm) barrel fits most focusers\u003c\/li\u003e\n\u003cli\u003eWeighs only 2.3 oz (65 g)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eCelestron Universal Barlow and T-Adapter - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Universal Barlow and T-Adapter is a single 1.25\" (32mm) accessory that provides three distinct functions for visual observers and imagers. This compact unit, with an external length of 76mm (3\"), functions as a 2x Barlow for visual use, a prime focus T-adapter for turning your telescope into a massive camera lens, and a \"tele-extended\" adapter that doubles photographic magnification. At a minimal weight of just 2.3 oz (65 g), it adds significant capability without impacting your telescope's balance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 2x Barlow for Any 1.25\" Eyepiece\u003c\/h3\u003e\n\u003cp\u003eIn its default configuration, this accessory functions as a powerful 2x Barlow. Simply insert any 1.25\" eyepiece to instantly double its magnification, effectively turning a 20mm eyepiece into a 10mm. This is an economical way to expand your range of available magnifications without buying a full new set of eyepieces, and it maintains the comfortable eye relief of the original eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eYour Telescope as a Prime Photographic Lens\u003c\/h3\u003e\n\u003cp\u003eFor astrophotographers, the Celestron Universal Barlow \u0026amp; T-Adapter converts into a prime focus adapter. By unscrewing the lower lens element, you are left with a hollow extension tube with T-threads on top. Attach a camera-specific T-Ring (sold separately), and you can connect your DSLR or SLR camera directly to the telescope's 1.25\" focuser, using your scope's native focal length to capture wide-field images of the Moon or terrestrial subjects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 2x Magnifier for Astrophotography\u003c\/h3\u003e\n\u003cp\u003eThe third configuration, known as tele-extended or \"Barlowed\" imaging, solves a common problem with fast refractors and Newtonian reflectors. These telescopes often lack sufficient inward focus travel to reach a sharp focus in prime focus mode. By reattaching the Barlow lens, the adapter pushes the focal point outward, allowing the camera to reach focus while also doubling the telescope's effective focal length for 2x larger images on your camera sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the three ways I can use the Celestron Universal Barlow \u0026amp; T-Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis 1.25\" accessory serves three functions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2x Visual Barlow:\u003c\/strong\u003e Doubles the magnification of any 1.25\" eyepiece you insert into it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrime Focus T-Adapter:\u003c\/strong\u003e After unscrewing the lens element, it connects your DSLR\/SLR camera (with a T-Ring) to the telescope, using the scope's native focal length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\"Barlowed\" T-Adapter:\u003c\/strong\u003e It connects your camera to the telescope and uses the lens element to double the imaging magnification, which also helps achieve focus on scopes with limited travel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need anything else to connect my camera with this Universal T-Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. You will need a \u003cstrong\u003eT-Ring\u003c\/strong\u003e that is specific to your camera's brand and model (e.g., Canon EOS, Nikon F-mount). The T-Adapter has the male T-threads, and the T-Ring has the female T-threads on one side and the camera's lens mount on the other.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy short-tube refractor won't reach focus for prime focus photography. Will this adapter help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is exactly what the \"tele-extended\" mode is for. By keeping the Barlow lens element attached to the T-adapter, the focal plane is extended outward, which typically provides the extra focus travel needed for fast refractors and Newtonians to achieve a sharp image on the camera sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow can I use the Celestron Universal Barlow \u0026amp; T-Adapter to photograph the Moon with my 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor an 8\" SCT, you have two great options. For a full-disc image of the Moon, use the adapter in \u003cstrong\u003eprime focus mode\u003c\/strong\u003e (Barlow lens removed). This uses the telescope's native ~2000mm focal length. To capture close-up details of specific craters like Copernicus or Tycho, use it in \u003cstrong\u003etele-extended mode\u003c\/strong\u003e (Barlow lens attached) to double the effective focal length to ~4000mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes using the Celestron Universal Barlow \u0026amp; T-Adapter as a Barlow affect eye relief?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, one of the key benefits of this design is that it doubles the magnification while preserving the original eye relief of the eyepiece you are using. This is especially helpful for eyeglass wearers who rely on the long eye relief of low-power eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the lens element in the Celestron Universal Barlow \u0026amp; T-Adapter multi-coated?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the product is designed for high-contrast views, the manufacturer does not specify the exact coating details. It is engineered to provide sharp, 2x magnification for both visual and imaging applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.3 oz (65 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\" (32mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Length\u003c\/td\u003e\n\u003ctd\u003e3\" (76mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eUniversal Barlow and T-Adapter Body\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eRemovable 2x Barlow Lens Element\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Caps\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Celestron_Universal_Barlow_and_T-Adapter_Manual.pdf?v=1782260667\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967180534045,"sku":"CEL-93640","price":97.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-1-25-inch-Universal-Barlow-and-T-Adapter-93640-1__03439.1594230498.1280.1280.jpg?v=1684338252"},{"product_id":"celestron-1-25-visual-back","title":"Celestron 1.25\" Visual Back","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts Schmidt-Cassegrain rear cell threads to a 1.25\" opening\u003c\/li\u003e\n\u003cli\u003eAccepts all standard 1.25\" accessories like diagonals, eyepieces, and Barlow lenses\u003c\/li\u003e\n\u003cli\u003eDurable metal construction ensures a secure connection\u003c\/li\u003e\n\u003cli\u003eStandard-issue component for most Celestron SCTs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eCelestron 1.25\" Visual Back\u003c\/h2\u003e\n\u003cp\u003eThe Celestron 1.25\" Visual Back is the essential metal adapter that connects your Schmidt-Cassegrain or Maksutov-Cassegrain telescope to the entire ecosystem of 1.25\" astronomy accessories. This component threads directly onto the rear cell of the telescope, providing a secure port for your 1.25\" diagonal, eyepiece, or imaging camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Standard SCT to 1.25\" Connection\u003c\/h3\u003e\n\u003cp\u003eThis visual back is the fundamental link in your optical train. It converts the proprietary SCT threaded rear cell into the universal 1.25\" format used by the vast majority of astronomical eyepieces, filters, and cameras. Its simple, robust design ensures a rigid, non-flexing connection for both visual observation and basic imaging.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Fit:\u003c\/strong\u003e Threads onto the rear cell of most Celestron Schmidt-Cassegrain and Maksutov-Cassegrain telescopes without any additional adapters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Hold:\u003c\/strong\u003e Thumbscrews lock your 1.25\" accessory in place, preventing it from slipping as the telescope moves across the sky.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded with Most SCTs:\u003c\/strong\u003e This is the same visual back that comes standard with new Celestron 5\", 6\", 8\", 9.25\", and 11\" Schmidt-Cassegrain telescopes, making it a perfect factory replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUpgrading to a 2\" Diagonal: When to Replace This Part\u003c\/h3\u003e\n\u003cp\u003eWhile this 1.25\" visual back is ideal for high-magnification planetary viewing and use with standard eyepieces, the path to wider deep-sky views involves upgrading to 2\" accessories. To do this, you simply unthread the 1.25\" visual back from your telescope's rear cell. A dedicated 2\" SCT diagonal can then be threaded on in its place, opening your telescope up to the benefits of wide-field 2\" eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the primary function of the Celestron 1.25\" Visual Back?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Celestron 1.25\" Visual Back is a threaded adapter that attaches to the rear of a Schmidt-Cassegrain or Maksutov-Cassegrain telescope. Its purpose is to provide a standard \u003cstrong\u003e1.25\" port\u003c\/strong\u003e to accept accessories like star diagonals, eyepieces for straight-through viewing, Barlow lenses, or 1.25\" format cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Celestron 1.25\" Visual Back compatible with my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis visual back is designed to fit the standard rear cell threads found on most Schmidt-Cassegrain (SCT) and Maksutov-Cassegrain (MCT) telescopes. It is the factory-standard part for Celestron's 5\", 6\", 8\", 9.25\", and 11\" SCT models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy would I remove the Celestron 1.25\" Visual Back?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou would remove this part to upgrade your optical train to accept \u003cstrong\u003e2\" accessories\u003c\/strong\u003e. By unthreading the 1.25\" visual back, you can then thread on a 2\" SCT diagonal, which allows you to use 2\" eyepieces for wider fields of view when observing objects like the Andromeda Galaxy (M31) or the Pleiades (M45).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Celestron 1.25\" Visual Back for astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is suitable for basic astrophotography. You can insert a 1.25\" format planetary camera or webcam directly into the visual back to capture images of the Moon and planets like Jupiter and Saturn. For deep-sky imaging with larger sensors, a more rigid, threaded connection is typically recommended.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes a new Celestron SCT come with the 1.25\" Visual Back?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, virtually all new Celestron Schmidt-Cassegrain telescopes (from 5\" to 11\" models) include a 1.25\" Visual Back as standard equipment. This product serves as a direct replacement if your original is lost or damaged.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach the Celestron 1.25\" Visual Back?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is simple. First, ensure the rear cell threads on your telescope are clean. Then, carefully screw the visual back onto the threads clockwise until it is snug. Do not overtighten. Once attached, you can insert a 1.25\" diagonal or other accessory and secure it with the thumbscrews.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967180566813,"sku":"CEL-93653-A","price":64.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-1-25-inch-Visual-Back-93653-A-1__02411.1594230498.1280.1280.jpg?v=1684338256"},{"product_id":"celestron-sct-to-2-adapter","title":"Celestron SCT to 2\" Adapter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts standard SCT rear cell threads to accept 2\" accessories\u003c\/li\u003e\n\u003cli\u003eThreaded connection provides a secure, flex-free optical train\u003c\/li\u003e\n\u003cli\u003eBrass compression ring grips eyepieces and cameras without scratching\u003c\/li\u003e\n\u003cli\u003eWeighs just 3.9 oz (112 g)\u003c\/li\u003e\n\u003cli\u003eMachined aluminum with a black anodized finish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eCelestron SCT to 2\" Adapter\u003c\/h2\u003e\n\u003cp\u003eThe Celestron SCT to 2\" Adapter provides a robust, secure connection from your telescope's rear cell to any standard 2-inch accessory, weighing only 3.9 oz (112 g). Measuring 53mm x 57.15mm, this precision-machined aluminum adapter replaces the standard visual back to eliminate instability in your imaging or visual setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA Threaded SCT Interface for Maximum Stability\u003c\/h3\u003e\n\u003cp\u003eUnlike standard visual backs that use simple set screws, the Celestron SCT to 2\" Adapter threads directly onto the rear cell of your Schmidt-Cassegrain or Maksutov-Cassegrain. This direct-threaded connection creates a solid, flex-free link between your telescope and your 2\" diagonal, eyepiece, or camera nosepiece. The result is a more rigid optical train that prevents accessories from tilting or sagging under load, which is critical for astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe 2\" Brass Compression Ring System\u003c\/h3\u003e\n\u003cp\u003eThis adapter protects your investment in 2\" accessories. Instead of a simple set screw that can dent or scratch the barrel of your eyepieces, it uses a brass compression ring. As you tighten the locking screw, the soft brass ring gently and evenly closes around the accessory, providing a firm, 360-degree grip that won't mar the finish, ensuring your gear stays in pristine condition.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-Marring Grip:\u003c\/strong\u003e The soft brass material prevents scratches and dents on your 2\" diagonals and eyepieces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Hold:\u003c\/strong\u003e The compression mechanism provides a more secure hold than a single set screw, reducing the risk of accessories slipping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack Anodized Finish:\u003c\/strong\u003e The machined aluminum body is black anodized for corrosion resistance, and the interior is blackened to reduce internal reflections and improve contrast.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need the Celestron SCT to 2\" Adapter instead of the one that came with my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe standard 1.25\" visual back included with most SCTs is a limiting factor. This adapter allows you to use larger 2\" eyepieces for wider fields of view and 2\" diagonals for a more robust setup. The threaded connection is also far more secure than the stock slip-in adapter, preventing flexure, especially with heavier cameras or eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the brass compression ring on this adapter work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen you tighten the thumbscrew, it doesn't press directly on your accessory. Instead, it pushes a flexible brass ring inward, which then uniformly grips the entire circumference of your eyepiece or camera nosepiece. This provides a secure, centered hold without causing the scratches and dents that a direct steel screw would.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Celestron SCT to 2\" Adapter add significant weight to my 8\" SCT setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, at just 3.9 oz (112 g), the adapter adds minimal weight to your optical train. Its machined aluminum construction keeps it lightweight yet strong, so you won't need to make significant changes to your counterweight balance for visual use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this adapter for astrophotography with my Celestron telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The rigid, threaded connection is ideal for astrophotography. It prevents the camera from tilting, which can cause misshapen stars at the edge of the field. It provides a solid foundation for connecting a 2\" camera nosepiece or other imaging accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter compatible with all Celestron SCTs?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed to fit the standard rear cell threads found on most Celestron Schmidt-Cassegrain and Maksutov-Cassegrain telescopes, from 5\" models up to 14\" models. It will not fit models that do not have the standard SCT thread, such as the C90 spotting scope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter help me see the entirety of the Andromeda Galaxy (M31) in my C11?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is the first step. By allowing you to use a 2\" diagonal and a low-power, wide-field 2\" eyepiece, it enables the widest possible true field of view your C11 can deliver. This is essential for framing large deep-sky objects like the Andromeda Galaxy (M31) or the Pleiades (M45).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e53mm x 57.15mm (2.125\" x 2.25\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e3.9 oz (112 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e2-Year Warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSCT to 2\" Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967180828957,"sku":"CEL-93661","price":39.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-SCT-to-2-inch-Adapter-93661-1__97461.1594230500.1280.1280.jpg?v=1684338270"},{"product_id":"explore-scientific-rack-and-pinion-focuser-1-extension-tube","title":"Explore Scientific Rack and Pinion Focuser 1\" Extension Tube","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdds 1 inch of focuser back travel\u003c\/li\u003e\n\u003cli\u003eDesigned for Explore Scientific 2-inch Rack \u0026amp; Pinion Focusers\u003c\/li\u003e\n\u003cli\u003eCompatible with Explore Scientific ED APO telescopes\u003c\/li\u003e\n\u003cli\u003ePrevents running out of focus travel with specific accessories\u003c\/li\u003e\n\u003cli\u003eMaintains a secure connection for eyepieces and cameras\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eExplore Scientific Rack and Pinion Focuser 1\" Extension Tube\u003c\/h2\u003e\n      \u003cp\u003eThe Explore Scientific Rack and Pinion Focuser 1\" Extension Tube provides the critical back focus needed to bring certain eyepieces and cameras to a sharp image. This tube is specifically designed to thread securely into the 2-inch Rack and Pinion focusers found on Explore Scientific's ED APO refractor telescopes, adding exactly 1 inch of outward travel.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eAchieve Focus: 1 Inch of Critical Focuser Extension\u003c\/h3\u003e\n      \u003cp\u003eCertain optical configurations, particularly when using specific flatteners, reducers, or long-focal-length eyepieces, require more outward focuser travel than the focuser alone can provide. This 1-inch extension tube solves that problem by physically moving your eyepiece or camera further from the telescope's focal plane, ensuring you can reach a perfect focus without running out of travel.\u003c\/p\u003e\n      \u003cp\u003eBy using a dedicated, threaded extension, you maintain a rigid and secure connection in your optical train. This avoids the potential for sag or tilt that can be introduced by using less secure, slip-fit style extensions, preserving the optical alignment of your system for sharp, round stars edge-to-edge.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I know if I need the Explore Scientific 1\" Focuser Extension Tube?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYou need this extension tube if you find yourself running out of outward focus travel with a specific eyepiece or camera. If you have racked your focuser all the way out and the image is still not sharp, this 1-inch tube will provide the additional distance required to achieve focus.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Explore Scientific extension tube fit focusers other than the 2-inch Rack and Pinion model?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this extension tube is specifically threaded to match the Explore Scientific 2-inch Rack and Pinion focusers supplied with their ED APO series telescopes. It is not a generic extension and is unlikely to be compatible with focusers from other manufacturers.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes adding the Explore Scientific 1\" Extension Tube affect image quality?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, the tube itself is purely mechanical and has no optical elements. It simply moves your eyepiece or camera to the correct focal point. Because it is a rigid, threaded extension, it helps maintain the mechanical alignment of your imaging train, which is critical for good image quality.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this 1\" extension tube for imaging with my Explore Scientific ED APO telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. Astrophotography is a primary use case for this accessory. Many imaging setups that include a field flattener, off-axis guider, or filter wheel require a specific amount of back focus that this tube helps achieve, ensuring your camera sensor is positioned at the telescope's corrected focal plane.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between using this 1\" extension tube and a Barlow lens to reach focus?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eA Barlow lens is an optical device that multiplies the telescope's focal length and magnification, which also happens to move the focal point outward. The \u003cstrong\u003eExplore Scientific 1\" Extension Tube\u003c\/strong\u003e is a purely mechanical spacer; it provides the needed extension without changing the magnification or focal length of your telescope. If you need extension but want to maintain your telescope's native focal length, the extension tube is the correct tool.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI can't reach focus with a new eyepiece on my Explore Scientific ED102; is this 1\" extension tube the solution?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIt is very likely the solution. If your Explore Scientific ED102 has the stock 2-inch Rack and Pinion focuser and you cannot reach focus by racking all the way out, this 1-inch extension is designed precisely for this situation. It will give you the extra travel needed to bring that eyepiece into sharp focus.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eGTIN\u003c\/td\u003e\n\u003ctd\u003e812257015535\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003e1\" Focuser Extension Tube\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/explore-scientific-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eExplore Scientific Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":44967207960861,"sku":"ES-ESRPEXT1","price":41.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Explore-Scientific-Rack-and-Pinion-Focuser-1-inch-Extension-Tube-ESRPEXT1-ESRPEXT1-1__93274.1594240398.1280.1280.jpg?v=1684338919"},{"product_id":"explore-scientific-rack-and-pinion-focuser-2-5-extension-tube","title":"Explore Scientific Rack and Pinion Focuser 2.5\" Extension Tube","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e1.5Adds 1.5 inches of extension\u003c\/li\u003e\n\u003cli\u003eDesigned for Explore Scientific 2.5-inch Hexagonal Focusers\u003c\/li\u003e\n\u003cli\u003eMaintains rigidity of the optical train\u003c\/li\u003e\n\u003cli\u003eEnables focus with DSLRs, filter wheels, and other accessories\u003c\/li\u003e\n\u003cli\u003ePrecision-machined for a secure fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eExplore Scientific Rack and Pinion Focuser 2.5\" Extension Tube\u003c\/h2\u003e\n\u003cp\u003eThe Explore Scientific Rack and Pinion Focuser 2.5\" Extension Tube provides a crucial 2-inch increase in back focus, enabling your telescope to achieve a sharp image with cameras and accessories that require significant outward travel. This component is specifically engineered to integrate with the Explore Scientific 2.5-inch hexagonal focuser, preserving the stability of your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAdd 1.5 Inches of Critical Back Focus\u003c\/h3\u003e\n\u003cp\u003eWhen you add a DSLR, a filter wheel, or an off-axis guider to your telescope, the focal plane is pushed outwards. This 2-inch extension tube provides the necessary distance to compensate, ensuring you can reach a sharp focus without running out of focuser travel. It's an essential component for astrophotography setups that require more back focus than the stock focuser allows.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDesigned for the Explore Scientific 2.5-inch Hex Focuser\u003c\/h3\u003e\n\u003cp\u003eThis extension is not a generic part; it's made to match the robust design of the Explore Scientific 2.5-inch hexagonal rack and pinion focuser. The hexagonal shape is a key feature of the focuser, providing superior rigidity and preventing flexure under load. This extension tube maintains that design integrity, ensuring your camera and other heavy accessories are held securely without tilt or sag.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the Explore Scientific 2.5\" Focuser Extension Tube?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis tube adds 1.5\u003cstrong\u003e inches of outward travel\u003c\/strong\u003e to your focuser. It's designed for situations where your camera or accessory combination (like a DSLR with a T-ring, or a CCD with a filter wheel) requires more back focus than your telescope's focuser can provide on its own.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich focusers is this 2.5\" Extension Tube compatible with?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt is specifically designed for the \u003cstrong\u003eExplore Scientific 2.5-inch hexagonal rack and pinion focuser\u003c\/strong\u003e. It is machined to seamlessly thread onto this focuser body, maintaining the system's rigidity and alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen would I need to add a 1.25-inch extension to my Explore Scientific focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou would need this extension if you cannot achieve focus because your focuser is racked all the way out. This is a common scenario when imaging the Moon with a DSLR through an Explore Scientific ED series refractor, or when using an accessory stack with a long light path.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this 2.5\" extension tube introduce flexure into my imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile any extension can potentially introduce flexure, this tube is engineered to minimize it. By matching the \u003cstrong\u003e2.5-inch hexagonal design\u003c\/strong\u003e of the Explore Scientific focuser, it provides a more rigid and stable connection than a standard round extension tube would, helping to prevent tilt even with heavier cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the Explore Scientific 2.5\" Focuser Extension Tube?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is straightforward. You typically unthread the 1.5-inch eyepiece holder from your focuser drawtube, thread the 2.5-inch extension tube in its place, and then reattach your eyepiece holder or camera adapter to the end of the extension tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this extension tube to reach focus with a field flattener on my Explore Scientific apo refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a primary use case. Field flatteners and reducers have specific back focus requirements (e.g., 55mm from the sensor). This 2-inch (50.8mm) extension tube provides the bulk of the required distance, allowing you to use fine-tuning spacers to hit the precise back focus for a perfectly flat field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eGTIN\u003c\/td\u003e\n\u003ctd\u003e811803032944\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/explore-scientific-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eExplore Scientific Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":44967208517917,"sku":"ES-ESHEXEXT2","price":62.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Explore-Scientific-Rack-and-Pinion-Focuser-2-5-inch-Extension-Tube-ESHEXEXT2-ESHEXEXT2-1__43043.1594240400.1280.1280.jpg?v=1684339073"},{"product_id":"explore-scientific-rack-and-pinion-focuser-2-extension-tube","title":"Explore Scientific Rack and Pinion Focuser 2\" Extension Tube","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdds Critical Outward Focuser Travel\u003c\/li\u003e\n\u003cli\u003e2-inch Barrel Diameter\u003c\/li\u003e\n\u003cli\u003eDesigned for Explore Scientific ED APO Telescopes\u003c\/li\u003e\n\u003cli\u003eCompatible with 2-inch Rack and Pinion Focusers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eExplore Scientific Rack and Pinion Focuser 2\" Extension Tube\u003c\/h2\u003e\n\u003cp\u003eThe Explore Scientific Rack and Pinion Focuser 2\" Extension Tube provides the critical outward travel needed to achieve focus on Explore Scientific ED APO telescopes using a 2-inch rack and pinion focuser, especially when using accessories with long back-focus requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAchieve Critical Focus with Explore Scientific 2\" Focusers\u003c\/h3\u003e\n\u003cp\u003eCertain eyepieces, cameras, or accessories in your optical train can shift the focal plane beyond the reach of your telescope's standard focuser travel. This 2-inch extension tube solves that problem by physically moving your accessory outward, ensuring you have the range needed to achieve a sharp, stable focus without compromise.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDSLR and Astro-Camera Imaging:\u003c\/strong\u003e Provides the necessary spacing to bring camera sensors to the focal plane, a common requirement for prime-focus astrophotography.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialized Eyepieces:\u003c\/strong\u003e Allows long focal length eyepieces or those with complex optical designs that require more \"out-travel\" to be used effectively.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRigid Connection:\u003c\/strong\u003e Engineered specifically for Explore Scientific focusers to maintain a secure, non-flexing connection, preserving optical alignment even with heavier accessories.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need the Explore Scientific 2\" Extension Tube for my ED APO telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou need this extension tube if you cannot reach focus because your focuser is racked all the way out. This often happens when using accessories like DSLR cameras, some flatteners or reducers, or certain long focal length eyepieces that require the focal plane to be further away from the telescope tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Explore Scientific 2\" Extension Tube work with focusers from other brands?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis extension tube is specifically designed for the \u003cstrong\u003e2-inch rack and pinion focusers\u003c\/strong\u003e found on Explore Scientific ED APO telescopes. While it may physically fit other 2-inch focusers, a perfect mechanical and optical match is only guaranteed with the intended Explore Scientific models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I reach focus with my DSLR camera on an Explore Scientific ED127 using this 2\" extension tube?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a primary use case. A DSLR camera's sensor is recessed deep within the camera body, requiring significant out-travel from the focuser. The Explore Scientific 2\" Extension Tube provides the necessary spacing to bring the ED127's focal plane to your DSLR sensor for prime-focus imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm using a 2-inch diagonal and a long focal length eyepiece on my Explore Scientific refractor and can't reach focus. Will this tube help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. Some combinations of diagonals and long eyepieces consume less light path than the telescope was designed for, requiring the eyepiece to be positioned further out. This extension tube will bridge that gap, allowing you to achieve a sharp focus with your low-power, wide-field eyepiece setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Explore Scientific 2\" Extension Tube attach to the focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe extension tube inserts directly into the 2-inch drawtube of your Explore Scientific focuser, just like an eyepiece or diagonal. You then insert your accessory into the other end of the extension tube and secure both using the focuser's and the tube's compression rings or set screws.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes adding the Explore Scientific 2\" Extension Tube affect image quality?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the tube itself contains no optics and is simply a spacer. As long as it is securely fastened and your optical train is properly aligned, it will not degrade image quality. It is designed to be a rigid, passive component in your imaging setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eGTIN\u003c\/td\u003e\n\u003ctd\u003e812257015542\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eExplore Scientific 2\" Focuser Extension Tube\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/explore-scientific-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eExplore Scientific Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":44967208550685,"sku":"ES-ESRPEXT2","price":55.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Explore-Scientific-Rack-and-Pinion-Focuser-2-inch-Extension-Tube-ESRPEXT2-ESRPEXT2-1__61746.1594240400.1280.1280.jpg?v=1684339077"},{"product_id":"william-optics-2-rotolock-adapter-sct","title":"William Optics 2\" RotoLock Adapter - SCT","description":"\u003cul\u003e\n\t\u003cli\u003e\nDesigned for Schmidt-Cassegrain Telescopes (SCT)\n\t\u003c\/li\u003e\n\t\u003cli\u003e\nFeatures a secure RotoLock mechanism for 2\" accessories\n\t\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\t\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\t\u003cli class=\"active\"\u003e\n\t\t\u003cp\u003e\nThe William Optics 2\" RotoLock Adapter - SCT is a high-quality accessory designed to enhance the versatility and functionality of Schmidt-Cassegrain Telescopes. This adapter allows users to securely attach 2\" accessories to their SCT, while providing the added benefit of rotational adjustment for precise positioning.\n\t\t\u003c\/p\u003e\n\t\t\u003cdiv class=\"warning\"\u003e\n\t\t\t\u003cimg alt=\"Disclaimer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/warning-logo.svg?v=1714663206\" width=\"25px\"\u003e\n\t\t\t\u003cp\u003e\nSpecifically designed for use with Schmidt-Cassegrain Telescopes (SCT).\n\t\t\t\u003c\/p\u003e\n\t\t\u003c\/div\u003e\n\t\t\n\t\t\u003cdiv\u003e\n\t\t\t\u003ch3\u003e\nCompatibility\n\t\t\t\u003c\/h3\u003e\n\t\t\t\u003chr\u003e\n\t\t\t\u003cdiv class=\"two-columns-section\"\u003e\n\t\t\t\t\u003cdiv class=\"text-side-2\"\u003e\n\t\t\t\t\t\u003cp\u003e\nThe RotoLock Adapter is engineered to fit standard Schmidt-Cassegrain Telescopes, providing a secure connection between the telescope and 2\" accessories such as diagonal mirrors, eyepieces, and cameras.\n\t\t\t\t\t\u003c\/p\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\u003cdiv class=\"image-side-2\" data-mce-style=\"text-align: start;\" style=\"text-align: start;\"\u003e\n\t\t\t\t\t\u003cimg alt=\"William Optics 2\" rotolock adapter sct src=\"https:\/\/davidastro.com\/cdn\/shop\/products\/William-Optics-2-inch-RotoLock-Adapter-SCT-D-ROTO-A2-SCT2F-1__24380.1596133288.1280.1280_1028x1028.jpg?v=1684339259\" style=\"margin-bottom: 16px; float: none;\"\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\u003c\/div\u003e\n\n\t\t\t\u003cdiv data-mce-style=\"backgroundcolor: #0a0001; border-radius: 5px;\" style=\"background-color: #0a0001; border-radius: 5px;\"\u003e\n\t\t\t\t\u003ch3 style=\"color: white!important;\"\u003e\nRotoLock Mechanism\n\t\t\t\t\u003c\/h3\u003e\n\t\t\t\t\u003chr\u003e\n\t\t\t\t\u003cdiv class=\"two-columns-section\"\u003e\n\t\t\t\t\t\u003cdiv class=\"image-side-2\" data-mce-style=\"text-align: start;\" style=\"text-align: start;\"\u003e\n\t\t\t\t\t\t\u003cimg alt=\"William Optics 2\" rotolock adapter sct src=\"https:\/\/davidastro.com\/cdn\/shop\/products\/William-Optics-2-inch-RotoLock-Adapter-SCT-D-ROTO-A2-SCT2F-1__24380.1596133288.1280.1280_1028x1028.jpg?v=1684339259\" style=\"margin-bottom: 16px; float: none;\"\u003e\n\t\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\t\u003cdiv class=\"text-side-2\"\u003e\n\t\t\t\t\t\t\u003cp style=\"color: white!important;\"\u003e\nThe innovative RotoLock mechanism allows for smooth rotation of attached accessories while maintaining a secure grip. This feature enables precise positioning and framing without the need to loosen and retighten the adapter.\n\t\t\t\t\t\t\u003c\/p\u003e\n\t\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\u003c\/div\u003e\n\t\t\u003c\/div\u003e\n\n\t\t\u003ch3\u003eConstruction and Durability\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nCrafted from high-quality materials, typically anodized aluminum, the RotoLock Adapter offers excellent durability and resistance to wear. Its robust construction ensures long-lasting performance and reliability in various observing conditions.\n\t\t\u003c\/p\u003e\n\t\t\n\t\t\u003ch3\u003e\nEase of Use\n\t\t\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nDesigned for user-friendly operation, the adapter allows for quick and easy attachment and detachment of accessories. The RotoLock mechanism can be operated with one hand, making equipment changes and adjustments more convenient.\n\t\t\u003c\/p\u003e\n\t\t\n\t\t\u003ch3\u003e\nPrecision Engineering\n\t\t\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nManufactured to tight tolerances, the adapter ensures a precise fit with both the telescope and attached accessories. This precision helps maintain optical alignment and reduces the risk of flexure or movement during use.\n\t\t\u003c\/p\u003e\n\n\t\t\u003ch3\u003e\nVersatility\n\t\t\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nWhile specifically designed for SCTs, this adapter expands the telescope's compatibility with a wide range of 2\" accessories, enhancing its versatility for various astronomical applications, including visual observation and astrophotography.\n\t\t\u003c\/p\u003e\n\n\t\t\u003ch3\u003e\nSmooth Rotation\n\t\t\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nThe rotational capability of the adapter allows for easy framing of celestial objects and convenient positioning of camera or eyepiece orientations without disturbing the telescope's alignment.\n\t\t\u003c\/p\u003e\n\n\t\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967237157149,"sku":"WO-D-ROTO-A2-SCT2F","price":143.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-2-inch-RotoLock-Adapter-SCT-D-ROTO-A2-SCT2F-1__24380.1596133288.1280.1280.jpg?v=1684339259"},{"product_id":"william-optics-sct-connection-for-wo-diagonals-gold","title":"William Optics SCT Connection for WO Diagonals - Gold","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M50.8 Male to M48 Female Threads\u003c\/li\u003e\n\u003cli\u003eAdds 13.8 mm of Optical Length\u003c\/li\u003e\n\u003cli\u003eFemale Thread: M50.8\u003c\/li\u003e\n\u003cli\u003eMale Thread: M48\u003c\/li\u003e\n\u003cli\u003eSignature William Optics Gold Anodized Finish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics SCT Connection for WO Diagonals - Gold\u003c\/h2\u003e\n\u003cp\u003eThe William Optics SCT Connection for WO Diagonals creates a precise, threaded link between components, featuring a female M50.8 input thread and a male M48 output thread. This robust adapter adds a minimal 13.8 mm of optical length to your imaging train, ensuring a rigid, flex-free connection for your William Optics hardware.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePrecision M50.8 to M48 Adaptation in 13.8mm\u003c\/h3\u003e\n\u003cp\u003eThis adapter is engineered to establish a secure, non-flexing link within your optical train. It directly converts a male M50.8 thread to a male M48 thread, which is essential for connecting specific William Optics accessories or creating custom imaging configurations where a standard connection is not available.\u003c\/p\u003e\n\u003cp\u003eThe 13.8 mm optical path length is a critical specification for achieving correct spacing with flatteners or reducers that require precise back focus. Its all-metal construction and signature gold anodized finish ensure both durability and a perfect aesthetic match with other William Optics components.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFemale M50.8 Thread:\u003c\/strong\u003e Connects securely to accessories with a male M50.8 output thread, common on some William Optics flatteners and accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMale M48 Thread:\u003c\/strong\u003e Provides a standard 2-inch filter thread for connecting to cameras, filter wheels, or other M48-threaded accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptical Path (13.8 mm):\u003c\/strong\u003e Adds a defined and minimal length, a known value critical for maintaining proper back focus calculations in an imaging setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the exact thread types on the William Optics SCT Connection adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter features a \u003cstrong\u003efemale M50.8 thread\u003c\/strong\u003e on the side that accepts incoming light and a \u003cstrong\u003emale M48 thread\u003c\/strong\u003e on the output side.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much length does the William Optics SCT Connection add to an optical path?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter adds exactly \u003cstrong\u003e13.8 mm\u003c\/strong\u003e of optical length to your setup. This is a critical measurement to factor into your back focus calculations when using reducers or flatteners.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this William Optics adapter to connect a flattener with a male M50.8 thread to my camera's M48 T-ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this adapter is designed for that specific purpose. The female M50.8 side will thread onto your flattener, and the male M48 side will connect to any accessory with a female M48 thread, such as a 2\" filter wheel or a camera-specific M48 adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this William Optics adapter connect my 2\" diagonal to a Celestron 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBased on the specified threads (M50.8 female and M48 male), this adapter is \u003cstrong\u003enot\u003c\/strong\u003e designed to connect a standard William Optics diagonal to a standard SCT rear cell, which typically requires a female 2\"-24 TPI SCT thread. This adapter is intended for connecting components within an existing M50.8\/M48 threaded system. Always verify the threads on your specific diagonal and telescope before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the benefit of a threaded connection over a slip-fit adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA fully threaded connection, like the one provided by the William Optics SCT Connection, prevents any sag, tilt, or wobble in the optical train. This rigidity is critical for astrophotography to ensure stars remain sharp and round across the entire image field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the \"Gold\" in the William Optics SCT Connection name signify?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \"Gold\" refers to the durable, gold-anodized finish. This not only protects the CNC-machined aluminum adapter from scratches and corrosion but also provides a premium, aesthetic match to other William Optics telescopes and accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight-In Side (Female Thread)\u003c\/td\u003e\n\u003ctd\u003eM50.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight-Out Side (Male Thread)\u003c\/td\u003e\n\u003ctd\u003eM48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e13.8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eCNC-Machined Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eGold Anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics SCT Connection Adapter - Gold\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967237222685,"sku":"WO-D-SCT-TA","price":62.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-SCT-Connection-for-WO-Diagonals-Gold-D-SCT-TA-G-1__46435.1596133290.1280.1280.jpg?v=1684339278"},{"product_id":"william-optics-2-1-25-rotolock-visual-back-adapter","title":"William Optics 2\"-1.25\" RotoLock Visual Back Adapter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConverts 2\" focusers to a 1.25\" holder\u003c\/li\u003e\n\u003cli\u003eInnovative RotoLock self-centering mechanism\u003c\/li\u003e\n\u003cli\u003eDual input: 2\" push-in barrel and female M48 threads\u003c\/li\u003e\n\u003cli\u003eAdds 38 mm of optical length\u003c\/li\u003e\n\u003cli\u003ePrevents marring of eyepiece barrels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics 2\"-1.25\" RotoLock Visual Back Adapter\u003c\/h2\u003e\n\u003cp\u003eThe William Optics 2\"-1.25\" RotoLock Visual Back Adapter replaces standard thumbscrew holders, converting your 2\" focuser or M48 threaded accessory port into a precision 1.25\" eyepiece clamp. With a minimal optical path length of just 38 mm, this adapter provides a perfectly centered, rigid connection that eliminates eyepiece wobble and protects your equipment from scratches.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe RotoLock Advantage: Secure, Self-Centering 1.25\" Grip\u003c\/h3\u003e\n\u003cp\u003eThe core of this adapter is the William Optics RotoLock system. A simple twist of the knurled locking ring activates an internal compression band that applies even, concentric pressure around the entire 1.25\" barrel of your eyepiece or camera nosepiece. This design guarantees your accessory is held perfectly on the optical axis, a critical factor for maintaining sharp, coma-free views and achieving precise collimation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDual-Input Versatility: 2\" Push-in and M48 Threading\u003c\/h3\u003e\n\u003cp\u003eThis adapter is engineered for maximum compatibility with your existing gear. The light-in side features both a standard 2\" male barrel for push-in connection to any 2\" focuser or diagonal, and internal M48 female threads. This threaded connection allows you to securely attach the RotoLock directly to field flatteners, reducers, or other accessories that use the common 2\" filter thread standard, creating a solid, flex-free imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eRotoLock vs. Thumbscrew Adapters: A Difference in Precision\u003c\/h3\u003e\n\u003cp\u003eA standard thumbscrew adapter pushes an eyepiece barrel off-center and can easily mar its surface with repeated use. The RotoLock system solves both problems definitively.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerfect Centering:\u003c\/strong\u003e Thumbscrews introduce tilt by pushing from a single point. The RotoLock's 360° compression ring ensures your eyepiece is always aligned with the optical axis, preserving the view quality of your telescope.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Barrel Damage:\u003c\/strong\u003e The soft, uniform grip of the compression ring will not scratch, dent, or leave set-screw marks on your expensive eyepiece barrels, preserving their condition and resale value.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Hold:\u003c\/strong\u003e The RotoLock provides a far more secure hold than a single thumbscrew, preventing heavy eyepieces or cameras from shifting or rotating unexpectedly as you move the telescope.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main benefit of the William Optics RotoLock over a standard 1.25\" adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary benefit is \u003cstrong\u003eperfectly centered, secure clamping\u003c\/strong\u003e. Unlike thumbscrew adapters that push eyepieces off-axis and can cause them to wobble, the RotoLock's internal compression ring grips the barrel from all sides simultaneously, ensuring perfect optical alignment and a much stronger hold without marring the barrel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the M48 thread on the William Optics RotoLock adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe female M48 (48mm x 0.75mm) thread is located inside the 2\" barrel. You can thread the adapter directly onto accessories like field flatteners or reducers that have a male M48 thread. This creates a more rigid and secure connection than a simple push-fit adapter, which is ideal for astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 38mm optical length of the William Optics RotoLock cause focusing issues?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor most telescopes, the 38 mm optical length is easily accommodated by the focuser's travel range. However, if your telescope has very limited back focus, particularly in an imaging setup with multiple accessories, you should measure your available focus travel to ensure you can reach infinity focus with this adapter in the optical train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the William Optics RotoLock adapter with my 2\" diagonal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Simply insert the RotoLock's 2\" barrel into your diagonal's eyepiece holder, just as you would with a 2\" eyepiece. This instantly upgrades your diagonal to a premium, self-centering 1.25\" holder, which is especially useful for high-magnification planetary viewing where precise centering is critical.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the RotoLock mechanism wear out over time?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe William Optics RotoLock is a robust mechanical system designed for longevity. With normal use, the internal compression mechanism is highly durable and will provide years of reliable, trouble-free operation without any significant wear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the William Optics RotoLock adapter difficult to use in the dark or with gloves?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it's often easier than fumbling with small thumbscrews. The large, knurled locking ring is easy to grip and turn, even with light gloves on. A short, intuitive twist is all that's needed to lock or unlock an eyepiece, making it a very field-friendly upgrade.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Connection\u003c\/td\u003e\n\u003ctd\u003e2\" Push-in (male) \/ M48x0.75 (female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" Push-in with RotoLock (female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e38 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics 2\"-1.25\" RotoLock Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Gold","offer_id":44967237255453,"sku":"WO-F-ROTO-A2-125GDII","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"Red","offer_id":44967237288221,"sku":"WO-F-ROTO-A2-125RDII","price":80.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-2-inch-1-25-inch-RotoLock-Visual-Back-Adapter-F-ROTO-A2-125-1__18533.1596133290.1280.1280.jpg?v=1684339282"},{"product_id":"william-optics-1-25-rotolock-visual-back-adapter-sct","title":"William Optics 1.25\" RotoLock Visual Back Adapter - SCT","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eSecurely holds 1.25\" eyepieces and accessories\u003c\/li\u003e\n\u003cli\u003eRotoLock system provides self-centering, even grip\u003c\/li\u003e\n\u003cli\u003eAttaches to standard SCT rear threads (M50.8 female input)\u003c\/li\u003e\n\u003cli\u003eAdds 50.7 mm of optical length\u003c\/li\u003e\n\u003cli\u003eReplaces standard visual backs with a non-marring design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics 1.25\" RotoLock Visual Back Adapter - SCT\u003c\/h2\u003e\n\u003cp\u003eThe William Optics 1.25\" RotoLock Visual Back Adapter replaces your telescope's standard visual back with a secure, self-centering mechanism that adds just 50.7 mm of optical length. Its M50.8 female input and 1.25\" female output create a solid, single-twist connection for your eyepieces and accessories, designed for standard Schmidt-Cassegrain Telescope threads.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe 50.7mm RotoLock System: One Twist for Perfect 1.25\" Centering\u003c\/h3\u003e\n\u003cp\u003eThe core of this adapter is the innovative RotoLock mechanism. A simple twist of the red, knurled ring activates an internal compression band that closes evenly around your 1.25\" eyepiece or camera nosepiece. This ensures your accessory is held perfectly on the optical axis, eliminating the tilt and sag common with single-thumbscrew designs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA Secure 1.25\" Grip: Eliminating Thumbscrew Wobble and Scratches\u003c\/h3\u003e\n\u003cp\u003eStandard visual backs rely on one or two thumbscrews that push an accessory barrel off-center and can easily scratch or mar its surface. The RotoLock adapter solves both problems by applying uniform pressure around the entire circumference. This not only provides a more secure and stable connection but also protects your investment in high-quality eyepieces and cameras from damage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main benefit of the William Optics 1.25\" RotoLock Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary benefit is its \u003cstrong\u003eself-centering, non-marring grip\u003c\/strong\u003e. Unlike thumbscrews that push an eyepiece to one side and can scratch the barrel, the RotoLock system provides a secure, perfectly aligned hold with a simple twist, protecting your gear and ensuring optimal optical alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the William Optics RotoLock SCT Adapter work on my Celestron 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This adapter is designed to thread directly onto the standard rear cell threads found on most Schmidt-Cassegrain telescopes, including popular models from Celestron and Meade.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much back focus does the William Optics RotoLock SCT Adapter use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter adds \u003cstrong\u003e50.7 mm of optical length\u003c\/strong\u003e to your imaging or visual train. You should ensure you have sufficient back focus available, particularly if you plan to use it with other accessories like a focal reducer or filter wheel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the William Optics 1.25\" RotoLock Adapter secure enough for a small camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The even, compressive grip of the RotoLock system is significantly more secure than a single thumbscrew, making it an excellent choice for lightweight 1.25\" planetary cameras and guide cameras. It prevents flexure and ensures the camera sensor remains stable and aligned.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the William Optics RotoLock Adapter damage my eyepiece barrels?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The adapter uses an internal compression ring that distributes pressure evenly around the barrel's surface. This design avoids the focused pressure point of a metal thumbscrew, which is the primary cause of scratches and scoring on eyepiece barrels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the William Optics RotoLock Adapter improve imaging of Jupiter with a 1.25\" camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor high-resolution planetary imaging of targets like Jupiter or Saturn, maintaining perfect optical alignment is critical. The RotoLock adapter ensures your 1.25\" camera sensor is held perfectly parallel to the focal plane, preventing any tilt that could soften one side of the image. This leads to consistently sharper results across the entire planetary disk.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Connection\u003c\/td\u003e\n\u003ctd\u003eM50.8 (female) - SCT Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" RotoLock (female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e50.7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25\" RotoLock Visual Back Adapter for SCT\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967237386525,"sku":"WO-F-ROTO-A2-125-SCT-TA","price":135.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-1-25-inch-RotoLock-SCT-F-ROTO-A2-125GDII-D-SCT-TA-1__15415.1596133291.1280.1280.jpg?v=1684339289"},{"product_id":"william-optics-3-5-2-rotolock-visual-back-adapter","title":"William Optics 3.5\"-2\" RotoLock Visual Back Adapter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts 3.5\" William Optics focusers to a 2\" receiver\u003c\/li\u003e\n\u003cli\u003eFeatures the secure, self-centering RotoLock mechanism\u003c\/li\u003e\n\u003cli\u003eConnects via M92 x 1 male threads\u003c\/li\u003e\n\u003cli\u003eAdds only 25 mm to the optical path\u003c\/li\u003e\n\u003cli\u003eCNC-machined from high-grade aluminum\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics 3.5\"-2\" RotoLock Visual Back Adapter\u003c\/h2\u003e\n\u003cp\u003eThe William Optics 3.5\"-2\" RotoLock Visual Back Adapter converts the M92 x 1 male thread of a 3.5\" William Optics focuser into a secure, self-centering 2\" female receiver. This precision-machined adapter adds just 25 mm of optical length, creating a mar-free grip on your most valuable eyepieces and accessories without the hassle of traditional thumbscrews.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe 2\" RotoLock System: A Secure, Self-Centering Grip\u003c\/h3\u003e\n\u003cp\u003eThe RotoLock system replaces conventional thumbscrews with a simple, intuitive rotating collar. A gentle twist of the knurled ring engages an internal compression band, applying uniform pressure around the barrel of your 2\" diagonal, eyepiece, or camera nosepiece. This design ensures your accessories are perfectly centered on the optical axis, preventing tilt and maintaining sharp focus from edge to edge.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo More Scratches:\u003c\/strong\u003e The compression band provides a firm hold without gouging or marring the finish on your accessory barrels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerfect Axial Alignment:\u003c\/strong\u003e By applying even pressure, the RotoLock automatically centers the accessory in the drawtube, which is critical for imaging and high-power visual observation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Handed Operation:\u003c\/strong\u003e The large, knurled ring is easy to operate even with gloves on, and there are no small thumbscrews to drop or lose in the dark.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM92 Threads for 3.5\" William Optics FLT Focusers\u003c\/h3\u003e\n\u003cp\u003eThis adapter is engineered specifically as an upgrade for William Optics refractors equipped with their robust 3.5\" rack-and-pinion focuser. The male M92 x 1 threads ensure a rigid, direct connection to the focuser drawtube, eliminating any potential for flexure. Consuming only 25 mm of optical length, the RotoLock is an efficient solution for visual observers and imagers who require a solid 2\" connection without sacrificing significant back focus. Available in multiple anodized colors, it allows you to match the aesthetic trim of your William Optics telescope for a seamless, integrated look.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this William Optics RotoLock adapter fit a non-William Optics telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is designed specifically for the \u003cstrong\u003eM92 x 1 male thread\u003c\/strong\u003e found on William Optics 3.5\" focusers, typically included with their FLT series refractors. It is not compatible with standard SCT threads or other focuser brands.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the RotoLock system on this 3.5\"-2\" adapter work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe RotoLock adapter uses a rotating collar that tightens an internal, split compression ring. As you twist the collar, the ring gently and evenly squeezes the barrel of your 2\" accessory. This provides a secure, self-centering grip that is superior to the single-point pressure of a thumbscrew.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of the RotoLock adapter over a standard 2\" visual back?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantages are:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Centering:\u003c\/strong\u003e Ensures perfect alignment of your diagonal or camera with the telescope's optical axis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Marring:\u003c\/strong\u003e It will not leave scratches or gouges on your eyepiece and accessory barrels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Grip:\u003c\/strong\u003e Provides a stronger, more reliable hold on heavy accessories, preventing sag or wobble.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI use a William Optics FLT132 for imaging. How does this RotoLock adapter affect my 25 mm optical path?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter's \u003cstrong\u003e25 mm optical length\u003c\/strong\u003e must be factored into your total back focus calculation. You must subtract this 25 mm from the available back focus of your telescope and flattener combination to determine the remaining distance for your camera and other accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the RotoLock adapter with a heavy 2\" diagonal on my William Optics FLT refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The RotoLock mechanism is ideal for heavy accessories like 2\" dielectric diagonals loaded with large eyepieces. The uniform grip provides a much more secure and stable connection than a single thumbscrew, significantly reducing the risk of wobble or accidental slippage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the William Optics M92 RotoLock adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is straightforward. Simply unthread the existing visual back or adapter from the end of your 3.5\" focuser's drawtube and carefully thread the M92 RotoLock adapter on in its place until it is snug.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser-Side Connection\u003c\/td\u003e\n\u003ctd\u003eM92 x 1 Male Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessory-Side Connection\u003c\/td\u003e\n\u003ctd\u003e2\" RotoLock Receiver (Female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Path Length\u003c\/td\u003e\n\u003ctd\u003e25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics 3.5\"-2\" RotoLock Visual Back Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Gold","offer_id":44967237419293,"sku":"WO-F-ROTO-A3.5-2GD","price":315.0,"currency_code":"CAD","in_stock":true},{"title":"Blue","offer_id":44967237452061,"sku":"WO-F-ROTO-A3.5-2BU","price":315.0,"currency_code":"CAD","in_stock":true},{"title":"Red","offer_id":44967237484829,"sku":"WO-F-ROTO-A3.5-2RD","price":315.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-3-5-inch-2-inch-RotoLock-Visual-Back-Adapter-F-ROTO-A3.5-2-1__00187.1596133292.1280.1280.jpg?v=1684339296"},{"product_id":"william-optics-2-rotolock-m63","title":"William Optics 2\" RotoLock - M63","description":"\u003cul\u003e\n    \u003cli\u003e\n        2\" RotoLock adapter designed for M63 threads\n    \u003c\/li\u003e\n    \u003cli\u003e\n        Ensures a secure and precise connection for 2\" accessories\n    \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n    \u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n    \u003cli class=\"active\"\u003e\n        \u003cp\u003e\n            The William Optics 2\" RotoLock - M63 is a high-quality adapter designed to provide a secure and precise connection for 2\" accessories to M63 threaded focusers. This innovative RotoLock design ensures a tight grip, minimizing any unwanted movement or flex, and making it an essential accessory for astrophotographers and visual observers seeking optimal performance.\n        \u003c\/p\u003e\n        \u003cdiv class=\"warning\"\u003e\n            \u003cimg alt=\"Disclaimer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/warning-logo.svg?v=1714663206\" width=\"25px\"\u003e\n            \u003cp\u003e\n                Telescopes and accessories sold separately.\n            \u003c\/p\u003e\n        \u003c\/div\u003e\n        \n        \u003cdiv\u003e\n            \u003ch3\u003e\n                Features\n            \u003c\/h3\u003e\n            \u003chr\u003e\n            \u003cdiv class=\"two-columns-section\"\u003e\n                \u003cdiv class=\"text-side-2\"\u003e\n                    \u003cp\u003e\n                        Designed to fit M63 threaded focusers, ensuring compatibility with a wide range of telescopes.\n                    \u003c\/p\u003e\n                    \u003cp\u003e\n                        Provides a secure and precise connection for 2\" accessories, enhancing stability and performance.\n                    \u003c\/p\u003e\n                \u003c\/div\u003e\n                \u003cdiv class=\"image-side-2\" style=\"text-align: start;\"\u003e\n                    \u003cimg alt=\"William Optics 2\\\" rotolock m63 src=\"https:\/\/davidastro.com\/cdn\/shop\/files\/William-Optics-2-inch-RotoLock-M63-F-ROTO-A63SL-2__64123.1596133293.1280.1280_832x832.jpg?v=1684339300\"\u003e\n                \u003c\/div\u003e\n            \u003c\/div\u003e\n\n            \u003cdiv style=\"background-color: #0a0001; border-radius: 5px;\"\u003e\n                \u003ch3 style=\"color: white!important;\"\u003e\n                    High-Quality Construction\n                \u003c\/h3\u003e\n                \u003chr\u003e\n                \u003cdiv class=\"two-columns-section\"\u003e\n                    \u003cdiv class=\"image-side-2\" style=\"text-align: start;\"\u003e\n                        \u003cimg alt=\"William Optics 2\\\" rotolock m63 src=\"https:\/\/davidastro.com\/cdn\/shop\/files\/William-Optics-2-inch-RotoLock-M63-F-ROTO-A63SL-1__85254.1596133293.1280.1280_832x832.jpg?v=1684339298\"\u003e\n                    \u003c\/div\u003e\n                    \u003cdiv class=\"text-side-2\"\u003e\n                        \u003cp style=\"color: white!important;\"\u003e\n                            Made from durable materials to ensure longevity and reliable performance in various astrophotography setups.\n                        \u003c\/p\u003e\n                    \u003c\/div\u003e\n                \u003c\/div\u003e\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003ch3\u003e\n            Ease of Use\n        \u003c\/h3\u003e\n        \u003chr\u003e\n        \u003cp\u003e\n            Simple to attach and detach, with the RotoLock mechanism providing quick and secure adjustments.\n        \u003c\/p\u003e\n\n    \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967237550365,"sku":"WO-F-ROTO-A63SL","price":127.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/William-Optics-2-inch-RotoLock-M63-F-ROTO-A63SL-1__85254.1596133293.1280.1280.jpg?v=1684339298"},{"product_id":"william-optics-m48-push-in-nosepiece-for-wo-2-diagonals-uniguide-scope","title":"William Optics M48 Push-in Nosepiece for WO 2\" Diagonals \u0026 UniGuide Scope","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M48 Threaded Accessories to 2\" Push-in Focusers\u003c\/li\u003e\n\u003cli\u003eFemale M48 Threads for 2\" Filter Attachment\u003c\/li\u003e\n\u003cli\u003eAdds a Fixed 36 mm of Optical Length\u003c\/li\u003e\n\u003cli\u003eMale M48 Threads on Camera Side\u003c\/li\u003e\n\u003cli\u003eDesigned for William Optics 2\" Diagonals \u0026amp; UniGuide Scope\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eWilliam Optics M48 Push-in Nosepiece for WO 2\" Diagonals \u0026amp; UniGuide Scope\u003c\/h2\u003e\n      \u003cp\u003eThe William Optics M48 Push-in Nosepiece creates a secure, all-threaded connection between your M48-format imaging gear and a standard 2\" diagonal or focuser, adding a precise 36 mm to your optical path. This adapter eliminates the potential for tilt from compression rings or set screws by providing a rigid M48 male thread for your camera and a standard 2\" push-in barrel for your telescope.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eSecure M48 Threading for 2\" Diagonals and UniGuide Scopes\u003c\/h3\u003e\n      \u003cp\u003eThis nosepiece is engineered to solve a common flexure point in imaging trains. Instead of relying on a simple slip-fit nosepiece, you can thread your camera or filter wheel directly onto the adapter's M48 male threads for a solid, orthogonal connection. The female M48 threads on the telescope side also allow you to mount a 2\" filter inside the barrel, placing it at the front of your imaging train.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eA Fixed 36mm Optical Path for Back Focus Calculations\u003c\/h3\u003e\n      \u003cp\u003eFor astrophotographers, every millimeter of the optical path counts. This nosepiece adds a known, fixed optical length of 36 mm, a critical value for achieving correct spacing with field flatteners and focal reducers. This precision removes the guesswork associated with variable-length adapters, ensuring you can accurately calculate and maintain your required back focus distance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the primary use for the William Optics M48 Push-in Nosepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIts main purpose is to attach an accessory with M48 female threads, like a camera or filter wheel, to a standard 2\" push-in focuser or diagonal. It replaces standard smooth-sided nosepieces with a more secure threaded connection, which is especially important for preventing tilt with heavier imaging equipment.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 36mm optical length of this M48 nosepiece affect my imaging train?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe \u003cstrong\u003e36 mm optical length\u003c\/strong\u003e must be included in your total back focus calculation. If your focal reducer or flattener requires 55 mm of back focus, this adapter will consume 36 mm of that distance, leaving you with 19 mm for any remaining spacers and your camera's sensor depth.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I attach 2\" filters to this William Optics nosepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. The light-in side of the adapter features \u003cstrong\u003eM48 (female) threads\u003c\/strong\u003e, which is the standard threading for 2\" astronomy filters. You can thread a filter directly into the barrel before inserting it into your diagonal or focuser.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this M48 nosepiece work with my non-William Optics 2\" diagonal?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, most likely. While it is specifically designed for William Optics diagonals and the UniGuide scope, the male \u003cstrong\u003e2\" push-in barrel\u003c\/strong\u003e is a standard size and should fit any focuser or diagonal that accepts standard 2\" eyepieces and accessories.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of this M48 threaded nosepiece over a standard 2\" smooth-sided nosepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eA threaded connection provides superior security and alignment. Key advantages include:\u003c\/p\u003e\n    \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eReduced Tilt:\u003c\/strong\u003e Eliminates the possibility of sensor tilt that can be introduced by set screws or unevenly tightened compression rings.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSecurity:\u003c\/strong\u003e Prevents your expensive camera or filter wheel from accidentally slipping out of the focuser.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs this William Optics adapter suitable for connecting my DSLR to my SCT's 2\" diagonal?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, this is an excellent application. You would need an M48 T-ring for your specific DSLR model. The signal path would be: SCT -\u0026gt; 2\" Diagonal -\u0026gt; This M48 Push-in Nosepiece -\u0026gt; M48 T-Ring -\u0026gt; DSLR Body. Just be sure that your SCT has enough inward focus travel to accommodate the \u003cstrong\u003e36 mm\u003c\/strong\u003e path length of the adapter plus your other components.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eWO-WD-DIG2A\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eLight-In Side (Telescope)\u003c\/td\u003e\n\u003ctd\u003eM48 (female) \/ 2\" Push-in (male)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eLight-Out Side (Camera)\u003c\/td\u003e\n\u003ctd\u003eM48 (male)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e36 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eM48 Push-in Nosepiece for WO 2\" Diagonals \u0026amp; UniGuide Scope\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967238041885,"sku":"WO-WD-DIG2A","price":54.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-M48-Push-in-Nosepiece-for-WO-2-inch-Diagonals-UniGuide-Scope-WD-DIG2A-1__59747.1596133331.1280.1280.jpg?v=1684339332"},{"product_id":"william-optics-m63-female-to-2-push-in-adapter-for-p-flat6aiii","title":"William Optics M63 Female to 2\" Push-in Adapter for P-FLAT6AIII","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects P-FLAT6AIII Flattener to 2\" Focuser\u003c\/li\u003e\n\u003cli\u003eFemale M63 Threads for Flattener Connection\u003c\/li\u003e\n\u003cli\u003eMale 2\" Push-in Barrel for Focuser\u003c\/li\u003e\n\u003cli\u003eInternal M48 Female Threads for 2\" Filters\u003c\/li\u003e\n\u003cli\u003eProvides 46.6 mm of Optical Length\u003c\/li\u003e\n\u003cli\u003eCondition: Used\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics M63 Female to 2\" Push-in Adapter for P-FLAT6AIII - Used\u003c\/h2\u003e\n\u003cp\u003eThis used William Optics adapter provides the critical mechanical connection between your P-FLAT6AIII field flattener and any standard 2\" telescope focuser. It features a female M63 thread on the flattener side and contributes a precise optical length of 46.6 mm, ensuring you can achieve the correct back focus for a flat field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSecure Your P-FLAT6AIII with 46.6mm of Spacing\u003c\/h3\u003e\n\u003cp\u003eEngineered for a perfect fit, this adapter allows you to integrate the powerful P-FLAT6AIII flattener into an imaging train that terminates in a 2\" focuser. The female M63 threads attach directly to the flattener, while the male 2\" nosepiece slides securely into your telescope's drawtube. The adapter's body provides a fixed 46.6 mm of optical path length, a key distance for correct spacing.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Filter Threads:\u003c\/strong\u003e The light-in side of the adapter features standard M48 female threads, allowing you to mount 2\" filters inside the optical path, directly in front of the flattener.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility Warning:\u003c\/strong\u003e This adapter is not compatible with William Optics \"Twenty Years Anniversary Edition\" telescopes. Please confirm your telescope model is not an Anniversary Edition before purchasing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUsed Condition:\u003c\/strong\u003e This is a pre-owned item. It is fully functional but may show minor cosmetic signs of use, such as small marks on the barrel from focuser set screws.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the William Optics M63 to 2\" adapter for P-FLAT6AIII?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter allows you to connect the \u003cstrong\u003eWilliam Optics P-FLAT6AIII\u003c\/strong\u003e field flattener, which has an M63 male thread, to a standard \u003cstrong\u003e2\" telescope focuser\u003c\/strong\u003e. It also provides a specific \u003cstrong\u003e46.6 mm\u003c\/strong\u003e of optical length required for proper spacing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this adapter with my William Optics GT81 Twenty Years Anniversary Edition telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eNo.\u003c\/strong\u003e This adapter is explicitly not compatible with any of the \"Twenty Years Anniversary Edition\" telescopes from William Optics. You will need a different adapter for those specific models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the 46.6 mm optical length of this M63 adapter account for the full back focus?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the 46.6 mm is the contribution of this adapter alone. The P-FLAT6AIII has a total back focus requirement (typically 55 mm) that must be achieved by adding this adapter plus any other necessary spacers and camera adapters to reach the sensor plane.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 2\" filters with this William Optics M63 to 2\" adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The adapter is equipped with standard \u003cstrong\u003eM48 female threads\u003c\/strong\u003e on the telescope side (inside the 2\" barrel), allowing you to securely mount any standard 2\" astronomy filter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install this adapter between my William Optics Zenithstar 103 and the P-FLAT6AIII?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, thread the female M63 end of the adapter onto the male M63 threads of your P-FLAT6AIII flattener until it is snug. Then, slide the 2\" male barrel of the adapter assembly into your Zenithstar 103's 2\" focuser and lock it in place with the focuser's set screws.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does \"Used\" condition mean for this WO-YE-M63F-2IN-PI adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\"Used\" means the adapter is fully functional but is pre-owned and will likely show cosmetic signs of previous use. This may include minor scratches or scuffs on the black anodizing or marks on the 2\" barrel from being inserted into a focuser. The threads will be clean and fully operational.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Code\u003c\/td\u003e\n\u003ctd\u003eWO-YE-M63F-2IN-PI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eUsed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eWilliam Optics P-FLAT6AIII Flattener\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncompatible With\u003c\/td\u003e\n\u003ctd\u003eWilliam Optics Twenty Years Anniversary Edition Telescopes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight-In Side Connection\u003c\/td\u003e\n\u003ctd\u003e2\" Push-in (male) with internal M48 (female) filter threads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight-Out Side Connection\u003c\/td\u003e\n\u003ctd\u003eM63 (female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e46.6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics M63 Female to 2\" Push-in Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967238304029,"sku":"WO-YE-M63F-2IN-PI","price":66.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-M63-Female-to-2-inch-Push-in-Adapter-for-P-FLAT6AIII-YE-M63F-2IN-PI-1__95761.1596133299.1280.1280.jpg?v=1684339348"},{"product_id":"starlight-instruments-eyepiece-adapter-for-leica-eyepiece","title":"Starlight Instruments Eyepiece Adapter for Leica Eyepiece","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts select Leica eyepieces for astronomical use\u003c\/li\u003e\n\u003cli\u003ePrecision-machined by Starlight Instruments for a secure fit\u003c\/li\u003e\n\u003cli\u003eEnables use of premium spotting scope optics on telescopes\u003c\/li\u003e\n\u003cli\u003eDesigned to integrate into a standard astronomy focuser\u003c\/li\u003e\n\u003cli\u003eDurable, high-grade construction for long-term reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eStarlight Instruments Eyepiece Adapter for Leica Eyepiece\u003c\/h2\u003e\n\u003cp\u003eThis Starlight Instruments Eyepiece Adapter bridges the gap between world-class terrestrial optics and astronomical observing. It allows you to connect specific Leica eyepieces, renowned for their exceptional sharpness and contrast, directly to your telescope's focuser. This custom-machined component provides a secure, perfectly aligned optical path, enabling you to leverage your investment in premium Leica glass for celestial viewing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUnlocking Leica Eyepieces for Astronomical Use\u003c\/h3\u003e\n\u003cp\u003eLeica eyepieces, often designed for their high-end spotting scopes, feature proprietary mounting systems incompatible with standard 1.25\" or 2\" telescope focusers. This adapter solves that problem. Machined with the same precision as their Feather Touch focusers, Starlight Instruments ensures a zero-flexure connection that maintains the optical alignment critical for high-magnification views of planets and the Moon.\u003c\/p\u003e\n\u003cp\u003eBy using this adapter, you can experience the high-contrast, color-pure views of a Leica eyepiece across the night sky. The build quality reflects Starlight Instruments' reputation, featuring robust materials and a design that protects your valuable eyepiece while holding it securely in the optical train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the primary purpose of the Starlight Instruments Adapter for Leica Eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed to connect a Leica eyepiece, typically from a high-end spotting scope, to a standard telescope focuser. It allows observers who own premium Leica optics to use them for astronomical viewing, leveraging their exceptional optical quality on celestial objects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow would using a Leica eyepiece with this adapter affect views of the Moon or Jupiter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eLeica optics are known for their outstanding sharpness, contrast, and neutral color transmission. When properly adapted to a quality telescope, you can expect to see extremely fine details, such as subtle banding on Jupiter's cloud tops or minute features within lunar craters. The adapter's precise machining ensures the optical quality is maintained.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a Leica APO-Televid spotting scope. Can I use its eyepiece on my Takahashi refractor with this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed for specific Leica eyepiece models. You must first confirm the exact mount type of your APO-Televid eyepiece and verify that it matches this adapter's intended connection. Secondly, you must ensure the adapter's barrel size (typically 2\") is compatible with your Takahashi's focuser. Compatibility must be verified for both the eyepiece and the telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat focuser size does the Starlight Instruments Leica Adapter fit into?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile specifications are not provided, Starlight Instruments typically designs high-end accessories for \u003cstrong\u003e2-inch focusers\u003c\/strong\u003e to ensure maximum stability and compatibility with their own product lines. We strongly recommend confirming the barrel size of the adapter and your focuser before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy should I trust a Starlight Instruments adapter with my expensive Leica eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eStarlight Instruments is a world-renowned manufacturer of high-precision astronomical equipment, most notably their Feather Touch focusers. Their products are machined in-house in the USA to extremely high tolerances. This adapter is built to the same standard, ensuring a secure, non-marring fit that protects your investment while providing a rigid optical connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill adapting a spotting scope eyepiece affect optical performance on a telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile Leica eyepieces are optically superb, they are designed for a specific optical system (a spotting scope). While they generally perform very well in telescopes, there can sometimes be minor edge-of-field aberrations depending on the telescope's focal ratio. However, the on-axis sharpness and contrast are typically exceptional.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eStarlight Instruments 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Starlight Instruments","offers":[{"title":"Default Title","offer_id":44967260356893,"sku":"SI-EA20-EP2-L-37","price":378.0,"currency_code":"CAD","in_stock":true}]},{"product_id":"starlight-instruments-eyepiece-adapter-flush-mount-w-compression-ring-fits-1-25-eyepieces","title":"Starlight Instruments Eyepiece Adapter Flush Mount w\/ Compression Ring (Fits 1.25\" Eyepieces)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts 2-inch focusers and diagonals to accept 1.25-inch eyepieces\u003c\/li\u003e\n\u003cli\u003eFlush-mount design provides a minimal profile for focus-critical setups\u003c\/li\u003e\n\u003cli\u003eBrass compression ring ensures a secure, non-marring grip on eyepiece barrels\u003c\/li\u003e\n\u003cli\u003eMachined by Starlight Instruments for precision and durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eStarlight Instruments Eyepiece Adapter Flush Mount w\/ Compression Ring (Fits 1.25\" Eyepieces)\u003c\/h2\u003e\n\u003cp\u003eThe Starlight Instruments Eyepiece Adapter securely converts any 2-inch focuser or diagonal to accept standard 1.25-inch eyepieces. This flush-mount adapter is engineered to the same high standards as Feather Touch focusers, providing a solid, perfectly centered connection that protects your optical investment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 1.25\" Non-Marring Hold for Your 2\" Focuser\u003c\/h3\u003e\n\u003cp\u003eUnlike basic adapters that use a single thumbscrew to dig into your eyepiece barrels, this Starlight Instruments adapter uses a soft brass compression ring. As you tighten the thumbscrew, the internal ring gently and uniformly closes around the eyepiece, preventing scratches, centering it perfectly in the optical axis, and providing a much more secure hold.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eLow-Profile Design for Critical Focus Travel\u003c\/h3\u003e\n\u003cp\u003eThe \"flush mount\" design minimizes the adapter's profile, consuming the least possible amount of precious back focus. This is a critical advantage for instruments like Newtonian reflectors or telescopes equipped with focal reducers, where achieving focus with certain eyepiece combinations can be a challenge. By sitting lower in the drawtube, this adapter gives you the extra in-travel you need.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy use the Starlight Instruments adapter instead of the one that came with my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eMost stock adapters use a simple set screw that can scratch and dent the barrels of your eyepieces over time. The \u003cstrong\u003eStarlight Instruments adapter\u003c\/strong\u003e uses a brass compression ring that provides a firm, 360-degree grip without causing any cosmetic damage, while also ensuring better optical alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the \"compression ring\" on this 1.25\" adapter do?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe compression ring is a thin band of soft brass inside the adapter. When you tighten the thumbscrew, it squeezes this ring evenly around the eyepiece barrel. This mechanism offers two key benefits:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Damage:\u003c\/strong\u003e It prevents the thumbscrew from directly marking or scratching your eyepieces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Centering:\u003c\/strong\u003e It holds the eyepiece perfectly on-axis with the telescope's light path, which is critical for sharp, high-magnification views.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Starlight Instruments adapter help me reach focus with my 8\" f\/4 Newtonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is an excellent choice for that setup. Fast Newtonians often have limited focuser in-travel. The \u003cstrong\u003eflush-mount, low-profile design\u003c\/strong\u003e of this adapter takes up less space in the optical path compared to taller adapters, increasing your chances of reaching a sharp focus with all your 1.25\" eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Starlight Instruments 2\" to 1.25\" adapter compatible with all focusers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed to fit any standard 2-inch focuser, diagonal, or Barlow lens. Its flush-mount design ensures it will seat fully and securely in any 2-inch receptacle that uses either a compression ring or set-screw locking mechanism.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the flush mount design of this adapter benefit visual observing of the Orion Nebula (M42)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen observing large objects like the Orion Nebula (M42) with certain wide-field 1.25\" eyepieces and a coma corrector, focus travel can be very tight. The \u003cstrong\u003elow profile\u003c\/strong\u003e of this adapter can provide the crucial few millimeters of in-travel needed to bring the entire field to a sharp focus, ensuring you see the full extent of the nebulosity and the crisp stars of the Trapezium cluster.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this adapter add any optical elements to the light path?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The Starlight Instruments Eyepiece Adapter is a purely mechanical component. It contains no lenses or glass and will not alter the magnification, focal length, or optical characteristics of your telescope and eyepiece combination.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapter Type\u003c\/td\u003e\n\u003ctd\u003e2-inch to 1.25-inch Reducer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Barrel Diameter\u003c\/td\u003e\n\u003ctd\u003e2-inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Barrel Diameter\u003c\/td\u003e\n\u003ctd\u003e1.25-inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocking Mechanism\u003c\/td\u003e\n\u003ctd\u003eBrass Compression Ring with Thumbscrew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesign Profile\u003c\/td\u003e\n\u003ctd\u003eFlush Mount (Low Profile)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2\" to 1.25\" Flush Mount Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eStarlight Instruments 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Starlight Instruments","offers":[{"title":"Default Title","offer_id":44967260455197,"sku":"SI-EA20-205LP","price":112.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-Eyepiece-Adapter-Flush-Mount-Compression-Ring-Fits-1-25-inch-Eyepieces-EA20-205LP-1__47956.1596313972.1280.1280.gif?v=1684339562"},{"product_id":"starlight-instruments-eyepiece-adapter-easy-grip-w-compression-ring-fits-1-25-eyepieces","title":"Starlight Instruments Eyepiece Adapter \"Easy Grip\" w\/ Compression Ring (Fits 1.25\" Eyepieces)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts 2\" focusers and diagonals to use 1.25\" eyepieces\u003c\/li\u003e\n\u003cli\u003e\"Easy Grip\" knurled exterior for secure handling, even with gloves\u003c\/li\u003e\n\u003cli\u003eNon-marring brass compression ring protects eyepiece barrels\u003c\/li\u003e\n\u003cli\u003ePrecision-machined by Starlight Instruments for perfect alignment\u003c\/li\u003e\n\u003cli\u003eLow-profile design helps maintain focus travel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eStarlight Instruments Eyepiece Adapter \"Easy Grip\" w\/ Compression Ring (Fits 1.25\" Eyepieces)\u003c\/h2\u003e\n      \u003cp\u003eThe Starlight Instruments Easy Grip Eyepiece Adapter seamlessly converts any 2-inch focuser or diagonal to securely hold 1.25-inch eyepieces and accessories. This precision-machined adapter is built to the same exacting standards as Feather Touch focusers, ensuring your 1.25-inch eyepieces maintain perfect optical alignment within the larger 2-inch format.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eThe Perfect Step-Down: From a 2\" Focuser to 1.25\" Eyepieces\u003c\/h3\u003e\n      \u003cp\u003eWhile 2-inch focusers offer access to wide-field views, many of the highest-magnification planetary and specialty eyepieces exist only in the 1.25-inch format. This Starlight Instruments adapter bridges that gap without compromising the integrity of your optical train. Unlike stock adapters that can introduce slop and tilt, this component is machined for a perfect fit, guaranteeing that your 1.25\" eyepiece is held as rigidly and accurately as a 2\" eyepiece would be.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003e\"Easy Grip\" Exterior: Secure Handling for the 2-Inch Format\u003c\/h3\u003e\n      \u003cp\u003eThe \"Easy Grip\" design is a functional upgrade for real-world observing conditions. A deep, tactile knurling around the 2-inch barrel provides a confident grip, making it easy to insert, tighten, and remove the adapter even while wearing gloves on a cold night. This thoughtful ergonomic detail prevents fumbling and potential drops when changing eyepieces in the dark.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n    \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eBrass Compression Ring: Mar-Free Security for Your 1.25\" Collection\u003c\/h3\u003e\n      \u003cp\u003eProtect your investment in premium 1.25\" eyepieces. Instead of a single thumbscrew that can scratch and dent the eyepiece barrel, this adapter uses a soft brass compression ring. When you tighten the thumbscrew, the ring gently and uniformly clamps around the eyepiece, providing a more secure, centered grip while leaving the barrel pristine.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy upgrade to the Starlight Instruments 2\" to 1.25\" Easy Grip adapter from a standard one?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe Starlight Instruments adapter offers superior mechanical precision. Stock adapters can have loose tolerances, leading to eyepiece tilt and degraded optical performance. This adapter is machined to the same high standards as Feather Touch focusers, ensuring \u003cstrong\u003eperfect centering and alignment\u003c\/strong\u003e. The \"Easy Grip\" knurling and brass compression ring are also significant ergonomic and safety upgrades.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the brass compression ring on the Starlight Instruments adapter protect my eyepieces?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eA standard adapter uses the tip of a metal thumbscrew to directly press against your eyepiece barrel, creating a \"witness mark\" or scratch over time. The \u003cstrong\u003ebrass compression ring\u003c\/strong\u003e is a soft metal band inside the adapter that tightens around the entire circumference of the eyepiece. This distributes the pressure evenly, holds the eyepiece more securely, and never allows the hard screw to touch your eyepiece barrel, keeping it in new condition.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the benefit of the \"Easy Grip\" design on this 2\" to 1.25\" adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe \"Easy Grip\" refers to the deep, machined knurling on the exterior of the adapter. It provides a much more secure gripping surface than a smooth-sided adapter, which is especially useful in cold weather when you might be \u003cstrong\u003ewearing gloves\u003c\/strong\u003e or when your fingers are cold. It makes inserting, removing, and securing the adapter a more confident and less clumsy process in the dark.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Starlight Instruments adapter introduce any tilt when using 1.25\" eyepieces in my Dobsonian's 2\" focuser?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, preventing tilt is a primary reason to choose this adapter. It is precision-machined for a snug fit in any quality 2\" focuser or diagonal. The combination of tight tolerances and the uniform grip of the compression ring ensures that your 1.25\" eyepiece is held perfectly parallel to the optical axis, maintaining the sharp, collimated views your Dobsonian is capable of producing.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I confidently use a heavy 1.25\" eyepiece, like a Tele Vue Delos, with the Starlight Instruments Easy Grip adapter for high-power views of Jupiter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, absolutely. The brass compression ring provides a very strong, uniform grip around the entire 1.25\" barrel, which is ideal for heavier eyepieces like those in the Tele Vue Delos line. You can lock the eyepiece in place securely without fear of it shifting as the telescope moves, ensuring your view of Jupiter remains perfectly centered and focused.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Starlight Instruments 2\" to 1.25\" adapter threaded for 2\" filters?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, the barrel of the adapter that inserts into the focuser is typically threaded to accept standard 2-inch (M48x0.75) filters. This allows you to use your 2\" nebula or light pollution filters with your 1.25\" eyepieces, which is a significant advantage.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFocuser Side Barrel\u003c\/td\u003e\n\u003ctd\u003e2.0\"\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eEyepiece Side Barrel\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eLocking Mechanism\u003c\/td\u003e\n\u003ctd\u003eBrass Compression Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eExterior\u003c\/td\u003e\n\u003ctd\u003e\"Easy Grip\" Knurled Finish\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003e2\" to 1.25\" Easy Grip Eyepiece Adapter\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eStarlight Instruments 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Starlight Instruments","offers":[{"title":"Default Title","offer_id":44967260651805,"sku":"SI-EA20-205EG","price":112.0,"currency_code":"CAD","in_stock":true}]},{"product_id":"baader-2-locking-ring-for-scts-8-9-25-11-14","title":"Baader 2\" Locking Ring for SCTs 8\"\/9.25\"\/11\"\/14\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDirect-threads to the rear cell of Schmidt-Cassegrain telescopes\u003c\/li\u003e\n\u003cli\u003eCompatible with 8\", 9.25\", 11\", and 14\" SCT models\u003c\/li\u003e\n\u003cli\u003eDesigned for Baader 2\" zenith prisms and mirrors\u003c\/li\u003e\n\u003cli\u003eLow-profile, space-saving design to conserve back focus\u003c\/li\u003e\n\u003cli\u003eCreates a rigid, non-flexing connection for imaging\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader 2\" Locking Ring for SCTs 8\"\/9.25\"\/11\"\/14\"\u003c\/h2\u003e\n\u003cp\u003eThe Baader 2\" Locking Ring replaces the standard visual back on 8\", 9.25\", 11\", and 14\" Schmidt-Cassegrain telescopes, creating a direct-thread connection for Baader 2\" zenith prisms and mirrors. This space-efficient design minimizes the optical path length, which is critical for achieving focus with accessories that require significant back focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA Secure, Low-Profile Connection for 2\" Baader Accessories\u003c\/h3\u003e\n\u003cp\u003eBy threading directly onto your telescope's rear cell, this locking ring establishes a solid, metal-on-metal junction between the telescope and your 2\" Baader diagonal or other accessory. This configuration increases rigidity and eliminates the potential for tilt or play that can be introduced by standard thumbscrew-based visual backs, ensuring your optical train remains perfectly aligned.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBaader Locking Ring vs. Standard SCT Visual Back: Why Direct Threading Matters\u003c\/h3\u003e\n\u003cp\u003eA standard SCT visual back offers the convenience of quick accessory changes, but its slip-fit design can be a source of flexure, especially with heavy 2\" eyepieces or imaging cameras. The Baader 2\" Locking Ring prioritizes stability over convenience. The direct-thread attachment creates a single, rigid unit with the telescope tube, preventing image shift and preserving the tight collimation required for high-resolution planetary imaging and deep-sky astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main advantage of the Baader 2\" Locking Ring for SCTs?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary advantage is creating a \u003cstrong\u003erigid, low-profile connection\u003c\/strong\u003e for Baader 2\" accessories. By threading directly onto the SCT's rear port, it eliminates the flex and tilt common with standard slip-fit visual backs, while also saving valuable back focus distance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Baader 2\" Locking Ring help me reach focus with a binoviewer on my Celestron EdgeHD 11\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a key application. Binoviewers often require a large amount of inward focus travel that SCTs cannot provide with a standard diagonal. The space-efficient design of the Baader 2\" Locking Ring shortens the overall light path, often providing the critical millimeters needed to bring a binoviewer to focus on an 11\" SCT without a Barlow or optical corrector.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this Baader locking ring compatible with non-Celestron SCTs like Meade models?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis ring is designed for the standard 2\" male thread found on the rear cell of Celestron 8\", 9.25\", 11\", and 14\" SCTs. While many Meade SCTs use a similar thread, compatibility is not guaranteed. It is best to confirm the thread specification of your specific telescope model before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm imaging the Andromeda Galaxy (M31) with a focal reducer on my 9.25\" SCT. How does this ring help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen using a focal reducer, maintaining the precise back focus distance to the camera sensor is critical for a flat field. The Baader 2\" Locking Ring provides a short, solid connection that helps you stay within that tolerance. More importantly, its rigidity prevents any tilt in the imaging train, which would otherwise result in elongated stars in the corners of your images of M31.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Baader 2\" Locking Ring secure the accessory?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ring itself threads onto the back of the telescope. You then thread your Baader 2\" accessory (like a ClickLock diagonal) into the ring. This creates a fully threaded, secure system with no thumbscrews or compression rings involved in the primary connection to the telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the trade-off of using the Baader 2\" Locking Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe main trade-off is convenience. Unlike a standard visual back where you can quickly swap accessories with a thumbscrew, this system requires you to thread and unthread your diagonal. It is designed for observers and imagers who prioritize mechanical stability for a dedicated setup over the ability to rapidly change configurations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.04\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eUNC, Celestron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e97\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eSame-Thread Adapter, Variable Focusing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003e2\"\/SCT Thread (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003e2\"\/SCT Thread (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdaptable to\u003c\/td\u003e\n\u003ctd\u003eCelestron SC's 8\"\/9.25\"\/11\"\/14\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader 2\" Locking Ring for SCTs 8\"\/9.25\"\/11\"\/14\"\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Star_Diagonals_T-2_and_2in_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Star Diagonals T-2 and 2in Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967300792605,"sku":"BAA-2458270","price":70.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-2-inch-Locking-Ring-for-SCTs-8-inch-9-25-inch-11-inch-14-inch-1__92111.1597110542.1280.1280.jpg?v=1684340051"},{"product_id":"baader-m55-m68-adapter-for-2-baader-mirrors-prisms","title":"Baader M55\/M68 Adapter for 2\" Baader Mirrors \u0026 Prisms","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConverts Baader 2\" diagonals to a rigid M68 threaded connection\u003c\/li\u003e\n\u003cli\u003eAttaches to the M55 female thread on the diagonal body\u003c\/li\u003e\n\u003cli\u003eProvides a standard M68 x 1 male thread for accessories\u003c\/li\u003e\n\u003cli\u003eReplaces the original 2\" nosepiece and eyepiece holder\u003c\/li\u003e\n\u003cli\u003eEliminates flexure and tilt in demanding imaging setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader M55\/M68 Adapter for 2\" Baader Mirrors \u0026amp; Prisms\u003c\/h2\u003e\n\u003cp\u003eThe Baader M55\/M68 Adapter transforms your Baader 2\" diagonal from a standard slip-fit eyepiece holder into a rigid, fully threaded M68 connection point for serious imaging. This single component replaces both the 2\" nosepiece and eyepiece clamp, attaching directly to the diagonal's M55 housing thread to create an uninterrupted, secure optical train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA Fully Threaded Connection: From M55 to the M68 System\u003c\/h3\u003e\n\u003cp\u003eFor astrophotography, any source of tilt or flexure can degrade image quality, especially with heavy cameras or complex filter wheels. This adapter solves that problem by eliminating the 2\" slip-fit compression ring mechanism entirely. By converting the diagonal's native M55 thread to the large-format M68 (Zeiss) standard, you can directly attach correctors, reducers, and off-axis guiders for a connection that will not sag or shift during an exposure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eInstallation on Baader 2\" Diagonals\u003c\/h3\u003e\n\u003cp\u003eThis adapter is designed specifically for Baader's 2\" mirror and prism diagonals. Installation is straightforward: simply unthread and remove the original 2\" nosepiece (or ClickLock clamp) and the M55\/2\"\/S58 ring from the diagonal's body. The M55\/M68 adapter then screws directly into the exposed female M55 thread on the diagonal housing, providing a robust M68 male thread ready for your imaging accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy should I replace my Baader 2\" ClickLock with this M55\/M68 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the \u003cstrong\u003eBaader ClickLock\u003c\/strong\u003e is excellent for fast and secure visual use, a fully threaded connection is superior for astrophotography. The M55\/M68 adapter creates a rigid, non-flexing link between your diagonal and imaging equipment, which is critical for preventing tilt when using heavy cameras or long accessory trains.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Baader M55\/M68 adapter work with my Celestron or other brand 2\" diagonal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is designed specifically for the M55 thread size and flange distance found on \u003cstrong\u003eBaader Planetarium 2\" diagonals\u003c\/strong\u003e. It is not compatible with diagonals from other manufacturers, which use different threading or have non-removable eyepiece holders.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat accessories can I connect to the Baader M55\/M68 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter provides a standard \u003cstrong\u003eM68 x 1 male thread\u003c\/strong\u003e. This allows you to connect any component from the Baader M68 system, including extension tubes, reducers, and adapters for specific cameras or coma correctors, creating a versatile and robust imaging setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes installing the Baader M55\/M68 adapter change the optical path length?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, replacing the original eyepiece holder with this adapter will alter the optical path length. You will need to account for this change when calculating back focus for your specific reducer or corrector. Refer to the Baader M68 system charts to determine the precise path length of your new configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow can I use the Baader M55\/M68 adapter to attach my M48 filter wheel to my SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou would thread this adapter onto your Baader 2\" diagonal, which is attached to your SCT. This gives you an M68 male thread. From there, you would use a Baader M68 to M48 adapter (sold separately) to connect your filter wheel, ensuring a secure, all-threaded connection from the telescope to your camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Baader M55\/M68 adapter on both sides of the diagonal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, if you have a Baader 2\" diagonal with removable, threaded adapters on both the telescope and eyepiece side, you can use two of these M55\/M68 adapters to create a full M68-to-M68 \"pass-through\" diagonal for specialized imaging applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium, Zeiss\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e50.8 (2\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eExpanding Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eM55\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM68 x 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapters Family\u003c\/td\u003e\n\u003ctd\u003eM68 System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Star_Diagonals_T-2_and_2in_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Star Diagonals T-2 and 2in Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967301185821,"sku":"BAA-2956110","price":76.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-M55-M68-Adapter-for-2-inch-Baader-Mirrors-Prisms-1__80263.1597110548.1280.1280.jpg?v=1684340197"},{"product_id":"baader-hyperion-extension-ring-sp54-sp54-11mm-long","title":"Baader Hyperion Extension Ring - SP54\/SP54 11mm Long","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdds a precise 11mm of optical path length\u003c\/li\u003e\n\u003cli\u003eFeatures male and female SP54 threads\u003c\/li\u003e\n\u003cli\u003eIntegrates with the Baader Hyperion eyepiece system\u003c\/li\u003e\n\u003cli\u003eEnables precise back focus adjustment for imaging\u003c\/li\u003e\n\u003cli\u003eMatte black interior finish to prevent internal reflections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Hyperion Extension Ring - SP54\/SP54 11mm Long\u003c\/h2\u003e\n\u003cp\u003eThe Baader Hyperion SP54\/SP54 Extension Ring provides a precise 11mm of spacing, a critical component for achieving exact back focus distances in astrophotography setups using the Hyperion system. This ring ensures your camera sensor is positioned at the optimal focal plane of your coma corrector, flattener, or reducer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAchieving 11mm of Critical Spacing with SP54 Threads\u003c\/h3\u003e\n\u003cp\u003eEngineered for the Baader Hyperion system, this ring features male and female SP54 threads for a secure, direct connection. When the standard 55mm back focus cannot be reached with your existing adapters, adding this 11mm ring allows you to fine-tune the optical path length. Its rigid construction prevents flexure, maintaining optical alignment even with heavier cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main purpose of the Baader Hyperion 11mm Extension Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis ring's primary function is to \u003cstrong\u003eadd exactly 11mm of length\u003c\/strong\u003e to an optical train. This is crucial for astrophotography when you need to achieve the precise back focus distance specified by an optical corrector, such as a field flattener or coma corrector.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy Baader MPCC coma corrector needs 55mm of back focus. How does this 11mm ring help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou use this 11mm ring to fill a gap in your imaging train. First, you add up the optical path length of your camera, T-ring, and any other adapters. If the total is, for example, 44mm, you would add this \u003cstrong\u003e11mm extension ring\u003c\/strong\u003e to reach the required 55mm distance for optimal coma correction.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat accessories use the SP54 thread on the Baader Hyperion Extension Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eSP54 thread\u003c\/strong\u003e is the native system thread on Baader Hyperion eyepieces (revealed when the barrels are removed) and is used across their adapter system. This 11mm ring is designed to connect directly to these eyepieces for projection imaging or to other Baader SP54 accessories and T-rings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I stack this 11mm Baader ring with other extension rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the Baader system is modular, and you can stack multiple SP54 rings to create custom lengths. However, for maximum rigidity and to avoid potential tilt, it is always recommended to use a single extension ring that is closest to your required length rather than stacking many smaller ones.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this 11mm ring work with non-Baader equipment?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it will thread onto any astronomy accessory that has a matching male or female \u003cstrong\u003eSP54 thread\u003c\/strong\u003e. While designed for the Baader system, the standardized threading allows for cross-brand compatibility where SP54 is used.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Baader Hyperion 11mm ring better for visual observing or astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis ring is almost exclusively for \u003cstrong\u003eastrophotography\u003c\/strong\u003e. Its purpose is to precisely set sensor distance, which is not a concern for standard visual observing. An exception would be for eyepiece projection photography, where this ring would be used to set the distance between a Hyperion eyepiece and a camera sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eExtension Length\u003c\/td\u003e\n\u003ctd\u003e11mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Type (Male)\u003c\/td\u003e\n\u003ctd\u003eSP54\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Type (Female)\u003c\/td\u003e\n\u003ctd\u003eSP54\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eBaader Hyperion System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e57\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsage\u003c\/td\u003e\n\u003ctd\u003efor the DSLR 2\" filter holder and direct connection on all Hyperion 68° eyepieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdaptable to\u003c\/td\u003e\n\u003ctd\u003eDTAdapter II\u0026amp;III and Hyperion eyepieces. Fits also onto Morpheus® 76° eyepieces (in combination with #2408040 and #2958080)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Hyperion_Eyepieces_Application_Examples.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Hyperion Eyepieces Application Examples\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Digiscoping_Camera_Adaptations_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Digiscoping Camera Adaptations Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967307477277,"sku":"BAA-2958090","price":31.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Hyperion-Extension-Ring-SP54-SP54-11mm-Long-1__20305.1597110591.1280.1280.jpg?v=1684340342"},{"product_id":"baader-hyperion-zoom-adapter-m43-m54","title":"Baader Hyperion Zoom Adapter - M43\/M54","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Hyperion Zoom Mark III Eyepiece to a camera lens\u003c\/li\u003e\n\u003cli\u003eEnables afocal projection photography and digiscoping\u003c\/li\u003e\n\u003cli\u003eProvides M43 female thread for eyepiece connection\u003c\/li\u003e\n\u003cli\u003eProvides M54 male thread for Baader DT-Ring system\u003c\/li\u003e\n\u003cli\u003eCore component of the Hyperion DT-Ring system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Hyperion Zoom Adapter - M43\/M54\u003c\/h2\u003e\n\u003cp\u003eThe Baader Hyperion Zoom Adapter - M43\/M54 is the dedicated component for afocal projection, creating a direct M43 to M54 threaded link between your Hyperion Zoom Mark III eyepiece and a camera lens system. This single, precision-machined adapter is the key to unlocking the full digiscoping potential of your Hyperion Zoom eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eConnect Your Hyperion Zoom Mark III with M43\/M54 Threads\u003c\/h3\u003e\n\u003cp\u003eThis adapter is the essential bridge in Baader's Hyperion Digital T-Ring (DT-Ring) system. It threads securely onto the native M43 thread of the Hyperion Zoom Mark III eyepiece, presenting a standard male M54 thread on the camera side. This M54 interface allows for a rigid, secure connection to the appropriate Baader SP54 adapter ring that matches your camera lens's filter thread.\u003c\/p\u003e\n\u003cp\u003eBy coupling your camera and eyepiece this way, you create an \"afocal projective system.\" This technique uses the high-quality optics of both your camera lens and the Hyperion Zoom to capture images, offering variable magnification simply by adjusting the zoom setting on the eyepiece. It effectively turns your telescope or spotting scope into a powerful, variable-focal-length telephoto lens for both celestial and terrestrial photography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow can I use the Baader M43\/M54 adapter for birdwatching photography with my Hyperion Zoom?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter lets you connect your camera (with its lens) to the Hyperion Zoom, turning your spotting scope or telescope into a powerful telephoto system. This afocal setup is excellent for high-magnification terrestrial photography, like birdwatching, allowing you to zoom in on distant subjects with optical clarity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich eyepiece is the Baader M43\/M54 adapter compatible with?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed for the \u003cstrong\u003eBaader Hyperion Zoom Mark III eyepiece\u003c\/strong\u003e. It is engineered to attach directly to that eyepiece's M43 thread.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I connect my camera lens to the Baader M43\/M54 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe M54 thread on this adapter connects to a Baader SP54 adapter ring (sold separately). You must choose the specific SP54 adapter that matches the filter thread diameter of your camera lens (e.g., 58mm, 72mm, etc.) to complete the connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Baader M43\/M54 adapter to image the Moon with my DSLR and Hyperion Zoom?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an ideal application. By creating an afocal system with this adapter, you can use the zoom functionality of the Hyperion eyepiece to frame the entire lunar disc or zoom in on specific craters and mountain ranges, all while using your standard DSLR or mirrorless camera and lens.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Baader M43\/M54 adapter part of a larger system?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a core component of the \u003cstrong\u003eBaader Hyperion DT-Ring system\u003c\/strong\u003e. It serves as the primary link between the Hyperion Zoom eyepiece and the various SP54 threaded rings that adapt to different camera lenses, ensuring a secure and perfectly aligned optical train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Baader M43\/M54 adapter for prime-focus astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is designed exclusively for \u003cstrong\u003eafocal projection\u003c\/strong\u003e, where a camera with its lens attached images the view through an eyepiece. It is not intended for prime-focus imaging, where the camera body attaches directly to the telescope's focuser without a camera lens or eyepiece in the path.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium, Zeiss\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e57\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eExpanding Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eM43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eSP54\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdaptable to\u003c\/td\u003e\n\u003ctd\u003eHyperion Zoom Mark III. Not suitable for Morpheus® 76° eyepieces (Morpheus-Version under preparation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapters Family\u003c\/td\u003e\n\u003ctd\u003eSP54 System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Digiscoping_Camera_Adaptations_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Digiscoping Camera Adaptations Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty Policy\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967307510045,"sku":"BAA-2958086","price":50.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Hyperion-Zoom-Adapter-M43-M54-1__49484.1597110592.1280.1280.jpg?v=1684340347"},{"product_id":"baader-morpheus-adapter-m43-m54","title":"Baader Morpheus Adapter - M43\/M54","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts Morpheus M43 thread to M54\u003c\/li\u003e\n\u003cli\u003eEnables direct connection of Baader HDT-Rings\u003c\/li\u003e\n\u003cli\u003eCreates a rigid, non-flexing imaging train\u003c\/li\u003e\n\u003cli\u003eDesigned for afocal photography and digiscoping\u003c\/li\u003e\n\u003cli\u003eAll-metal construction for secure coupling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Morpheus Adapter - M43\/M54\u003c\/h2\u003e\n\u003cp\u003eThe Baader Morpheus M43\/M54 Adapter provides a direct, secure threaded connection between Baader's Hyperion Digital T-Rings (HDT) and the native M43 thread on Morpheus eyepieces. This dedicated adapter converts the eyepiece's M43 female thread to a larger M54 male thread, enabling a rigid, flex-free imaging train for high-resolution afocal photography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBaader M43\/M54 Adapter: Direct Connection for HDT Rings\u003c\/h3\u003e\n\u003cp\u003eFor afocal imaging, any tilt or sag between the eyepiece and the camera sensor can ruin an image. This adapter bypasses standard compression rings or thumbscrew holders, replacing them with a solid, threaded mechanical link. This ensures the camera remains perfectly parallel to the focal plane, a critical requirement for sharp stars across the entire field.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero Flexure:\u003c\/strong\u003e By threading directly onto the Morpheus eyepiece body and the HDT ring, the adapter eliminates the potential for camera movement or tilt that plagues less secure connection methods.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Centering:\u003c\/strong\u003e A threaded connection guarantees the camera sensor is perfectly centered on the eyepiece's optical axis, maximizing image illumination and minimizing optical aberrations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Integration:\u003c\/strong\u003e This component is the key to integrating the premium optics of a Morpheus eyepiece into a robust Baader T-2 or M68 imaging system for digiscoping or afocal projection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the primary function of the Baader Morpheus M43\/M54 Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed for a single purpose: to connect a Baader Hyperion Digital T-Ring (HDT-Ring) directly to the M43 thread on a Baader Morpheus eyepiece. This creates an extremely rigid connection for attaching a camera for afocal astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the Morpheus M43\/M54 Adapter to attach my DSLR to a Morpheus eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, remove the rubber eyeguard from your Morpheus eyepiece to reveal the M43 thread. Screw the M43\/M54 adapter onto the eyepiece. Then, attach the appropriate Baader HDT-Ring to the adapter's M54 thread. Finally, connect your camera-specific T-Ring and DSLR body to the HDT-Ring to complete the imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhere do I find the M43 thread on my Morpheus eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe M43 female thread is located on the main body of the Morpheus eyepiece, directly underneath the removable rubber eyecup. Simply un-fold or pull the eyecup off to access the thread.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy use the threaded Morpheus M43\/M54 Adapter instead of a standard eyepiece holder?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA standard holder that uses thumbscrews or a compression ring can allow for slight camera tilt or sag, which reduces image sharpness, especially at the edges of the field. A fully threaded connection, like the one this adapter provides, ensures the camera and eyepiece are perfectly aligned and locked together, eliminating flexure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Baader Morpheus M43\/M54 Adapter compatible with other eyepiece brands?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This adapter is specifically machined to match the proprietary M43 thread on Baader Morpheus 76° eyepieces. It is not compatible with eyepieces from other manufacturers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this Morpheus M43\/M54 adapter for visual observing with my 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is exclusively for photographic and imaging applications. For visual use, you should use the standard 1.25\" or 2\" barrels that come included with your Morpheus eyepiece, as they are required to place the eyepiece in your telescope's focuser or diagonal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Side Thread\u003c\/td\u003e\n\u003ctd\u003eM43 (Female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessory Side Thread\u003c\/td\u003e\n\u003ctd\u003eM54 (Male)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Eyepieces\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium Morpheus 76° Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Accessories\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium Hyperion Digital T-Rings (HDT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium, Zeiss\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e57\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eExpanding Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdaptable to\u003c\/td\u003e\n\u003ctd\u003eMorpheus® 76° eyepieces (not suitable for Hyperion 68° or Hyperion Zoom eyepieces)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eMorpheus M43\/M54 Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Digiscoping_Camera_Adaptations_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Digiscoping Camera Adaptations Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Morpheus_Eyepieces_Information_and_Applications.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Morpheus Eyepieces Information and Applications\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967308263709,"sku":"BAA-2954251","price":46.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Morpheus-Adapter-M43-M54-1__27320.1597110596.1280.1280.jpg?v=1684340363"},{"product_id":"baader-hyperion-finetuning-ring-14mm-m48-m48","title":"Baader Hyperion Finetuning-Ring -  14mm M48\/M48","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e14mm Extension Length\u003c\/li\u003e\n\u003cli\u003eM48 Male and Female Threads\u003c\/li\u003e\n\u003cli\u003eCompatible with Baader Hyperion Modular Eyepieces\u003c\/li\u003e\n\u003cli\u003eIncreases Eyepiece Magnification\u003c\/li\u003e\n\u003cli\u003eMaintains Optical Alignment and Quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Hyperion Finetuning-Ring - 14mm M48\/M48\u003c\/h2\u003e\n\u003cp\u003eThe Baader Hyperion 14mm Finetuning-Ring threads directly between the main body and the front lens assembly of a Hyperion eyepiece, using its M48 threads to precisely increase magnification. This 14mm extension alters the eyepiece's focal length without adding new optical elements, preserving the original design's image quality while giving you more power from a single eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eModify Hyperion Eyepiece Focal Length with the 14mm Finetuning Ring\u003c\/h3\u003e\n\u003cp\u003eThe Baader Hyperion eyepiece system is modular, allowing you to change its effective focal length by adding Finetuning Rings. This 14mm ring threads via its M48 connections between the main eyepiece body and the front negative lens group. By increasing the spacing between lens groups, the ring reduces the eyepiece's overall focal length, providing a significant boost in magnification.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintain Optical Quality:\u003c\/strong\u003e Because you are only adding a precision-machined spacer, not glass, the high-contrast, sharp-to-the-edge view of the Hyperion eyepiece is preserved.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCost-Effective Magnification:\u003c\/strong\u003e Instead of buying a completely new eyepiece, this single ring gives you another focal length option from your existing Hyperion collection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure M48 Threads:\u003c\/strong\u003e The M48 filter threading provides a secure, non-flexing connection that maintains perfect optical alignment between the lens groups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e14mm vs. 28mm Finetuning Rings: Choosing Your Magnification Step\u003c\/h3\u003e\n\u003cp\u003eBaader offers two primary Finetuning Rings for the Hyperion series: this 14mm version and a longer 28mm version. The choice depends on how large a magnification jump you need for your observing targets. The rings can also be stacked to achieve a maximum effect.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e14mm Ring:\u003c\/strong\u003e Provides a moderate increase in magnification, ideal for splitting tight double stars or resolving more detail on planetary disks when seeing conditions are good.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e28mm Ring:\u003c\/strong\u003e Offers a more substantial jump in power, useful for examining small planetary nebulae or when you need the highest possible magnification your telescope can support.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStacked (42mm):\u003c\/strong\u003e Combining the 14mm and 28mm rings produces the largest magnification increase, a configuration best reserved for nights of excellent atmospheric stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the Baader Hyperion 14mm Finetuning Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is straightforward. First, unscrew the front barrel assembly (the section containing the 1.25\" chrome barrel) from the main body of your Hyperion eyepiece. Thread the 14mm Finetuning Ring onto the main body's exposed M48 threads, then re-attach the front barrel assembly to the other side of the ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich Baader eyepieces are compatible with the 14mm Finetuning Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eBaader Hyperion 14mm Finetuning Ring\u003c\/strong\u003e is designed for the Baader Hyperion modular eyepieces (such as the 5mm, 8mm, 10mm, 13mm, 17mm, 21mm, and 24mm models) and the Hyperion Aspheric eyepieces. It is not compatible with the Hyperion Zoom eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the 14mm Finetuning Ring affect views of Jupiter through my 13mm Hyperion eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAdding the \u003cstrong\u003eBaader Hyperion 14mm Finetuning Ring\u003c\/strong\u003e to a 13mm Hyperion eyepiece significantly reduces its focal length, thereby increasing magnification. This higher power makes it easier to resolve fine details like the individual cloud bands, the Great Red Spot, and transits of Jupiter's Galilean moons. It effectively turns your mid-power eyepiece into a dedicated planetary eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I stack the Baader Hyperion 14mm Finetuning Ring with the 28mm ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the rings are designed to be stackable. You can thread the 14mm and 28mm rings together for a total extension of 42mm. This will produce the highest possible magnification from your Hyperion eyepiece, though it will also cause the most significant reduction in eye relief.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill using the Baader Hyperion 14mm Finetuning Ring affect eye relief?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, as a general rule, reducing an eyepiece's focal length by adding extension rings will also reduce its eye relief. The effect is moderate with the 14mm ring but becomes more noticeable with longer extensions. Observers who do not require glasses may find it perfectly comfortable, but it is an important trade-off to be aware of.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Baader Hyperion 14mm Finetuning Ring useful for viewing large objects like the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this accessory is designed to \u003cstrong\u003eincrease\u003c\/strong\u003e magnification and narrow the field of view for smaller targets. To view large objects like the Andromeda Galaxy (M31), you need low magnification to fit the entire object in the field. For that, you would use a long focal length eyepiece like the 24mm Hyperion with no Finetuning Rings attached.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eEyepiece Finetuning Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExtension Length\u003c\/td\u003e\n\u003ctd\u003e14mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThreads\u003c\/td\u003e\n\u003ctd\u003eM48 x 0.75 (Male and Female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eBaader Hyperion and Hyperion Aspheric Eyepieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e45\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e2\" (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eø 2\" (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eø 2\" (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdaptable to\u003c\/td\u003e\n\u003ctd\u003eNot suitable for Morpheus® 76° eyepieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Hyperion Finetuning-Ring - 14mm\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Hyperion_Eyepieces_Application_Examples.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Hyperion Eyepieces Application Examples\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Hyperion_Eyepieces_Opening_for_Focal_Length_Extension_Note.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Hyperion Eyepieces Opening for Focal Length Extension Note\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967316914461,"sku":"BAA-2958214","price":25.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Hyperion-Finetuning-Ring-14mm-M48-M48-1__86689.1597110685.1280.1280.jpg?v=1684340508"},{"product_id":"baader-hyperion-finetuning-ring-28mm-m48-m48","title":"Baader Hyperion Finetuning-Ring - 28mm M48\/M48","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e28mm Optical Extension\u003c\/li\u003e\n\u003cli\u003eM48 Male and Female Threads\u003c\/li\u003e\n\u003cli\u003eModifies Eyepiece Focal Length\u003c\/li\u003e\n\u003cli\u003eCompatible with Baader Hyperion Eyepieces\u003c\/li\u003e\n\u003cli\u003eMaintains Optical Alignment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Hyperion Finetuning-Ring - 28mm M48\/M48\u003c\/h2\u003e\n\u003cp\u003eThe Baader Hyperion Finetuning-Ring - 28mm M48\/M48 is a precision-machined optical extension tube designed to shorten the focal length of Baader Hyperion eyepieces. By adding 28mm of spacing between the eyepiece's main body and its modular 1.25\"\/2\" barrel assembly, this M48-threaded ring creates a new, higher-magnification focal length without compromising the original optical design's quality.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Hyperion Finetuning-Ring: A Modular Approach to Magnification\u003c\/h3\u003e\n\u003cp\u003eThis ring installs between the front negative lens group and the main body of a compatible Hyperion eyepiece. This increased optical path shortens the effective focal length, boosting magnification for more detailed views of planets, the Moon, and tight double stars. The M48 threads on both ends ensure a secure, tilt-free connection, maintaining the optical alignment of the eyepiece.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncreased Magnification:\u003c\/strong\u003e Transforms a lower-power Hyperion into a higher-power one, expanding the utility of a single eyepiece to cover multiple magnification steps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintained Eye Relief:\u003c\/strong\u003e Because the core optical group is unchanged, the eyepiece retains much of its original comfortable eye relief, a significant advantage over using a traditional Barlow lens.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCost-Effective System:\u003c\/strong\u003e Allows you to create new focal lengths from your existing Hyperion eyepieces, effectively expanding your collection for a fraction of the cost of a new eyepiece.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThis 28mm Ring vs. Shorter Rings: Choosing Your Magnification Jump\u003c\/h3\u003e\n\u003cp\u003eBaader offers Finetuning Rings in different lengths to provide varying degrees of focal length reduction. This 28mm ring is one of the longer options, providing a more significant change in focal length and a larger jump in magnification compared to the shorter 14mm ring in the series.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e28mm Finetuning Ring:\u003c\/strong\u003e Best for making a substantial change to an eyepiece's focal length. It is ideal for turning a mid-power eyepiece into a dedicated high-power planetary eyepiece.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e14mm Finetuning Ring:\u003c\/strong\u003e Offers a more subtle adjustment, perfect for creating \"in-between\" magnifications that fill a specific gap in your eyepiece set for double star or planetary imaging.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the 28mm Baader Hyperion Finetuning-Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is straightforward. First, unscrew the chrome 1.25\" or 2\" barrel assembly from the main black body of your Hyperion eyepiece. Thread the 28mm Finetuning-Ring onto the M48 threads of the main body, then thread the barrel assembly onto the other side of the ring. The connection should be firm but not overtightened.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 28mm Hyperion Finetuning-Ring work with non-Baader eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This ring is designed specifically for the modular construction and M48 thread system of the Baader Hyperion series eyepieces (excluding the Hyperion Zoom). It will not fit or function correctly with eyepieces from other manufacturers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes using the 28mm Hyperion Finetuning-Ring degrade the image quality?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it is designed as an integral part of the Hyperion optical system. The manufacturer states it transforms the focal length with no loss of quality. Unlike a generic extension tube, its length is calculated to work with the Hyperion's negative lens group to produce a sharp, well-corrected image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich Hyperion eyepieces are compatible with the 28mm Finetuning-Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ring is compatible with the fixed focal length Baader Hyperion eyepieces that feature a removable barrel section. This includes the following models: 5mm, 8mm, 10mm, 13mm, 17mm, 21mm, and 24mm. It is not compatible with the Baader Hyperion Zoom eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow would the 28mm Baader Hyperion Finetuning-Ring help when observing Jupiter with a Hyperion 17mm in my 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn a typical 8\" f\/10 SCT (2032mm focal length), a 17mm eyepiece gives 120x magnification. Adding the 28mm ring would significantly increase this magnification, pushing it closer to 180-200x. This higher power would make it much easier to resolve fine details like the Great Red Spot, individual cloud bands, and transits of Jupiter's moons, assuming atmospheric seeing is steady.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIf I use the 28mm Baader Hyperion Finetuning-Ring on my 24mm Hyperion for viewing the Orion Nebula (M42), what changes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eUsing the ring will increase your magnification and narrow your field of view. While a standard 24mm Hyperion provides a wide, expansive view perfect for framing the entire Orion Nebula, adding the 28mm ring would create a higher-power configuration. This would be useful for focusing in on the Trapezium star cluster at the heart of the nebula but would prevent you from seeing the full extent of the nebulosity in a single view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eFinetuning Ring \/ Eyepiece Extension Tube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExtension Length\u003c\/td\u003e\n\u003ctd\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThreads\u003c\/td\u003e\n\u003ctd\u003eM48 x 0.75 (Male and Female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium Hyperion Eyepieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e45\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e2\" (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eø 2\" (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eø 2\" (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdaptable to\u003c\/td\u003e\n\u003ctd\u003eNot suitable for Morpheus® 76° eyepieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Hyperion 28mm Finetuning-Ring\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Hyperion_Eyepieces_Application_Examples.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Hyperion Eyepieces Application Examples\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Hyperion_Eyepieces_Opening_for_Focal_Length_Extension_Note.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Hyperion Eyepieces Opening for Focal Length Extension Note\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967316979997,"sku":"BAA-2958228","price":30.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Hyperion-Finetuning-Ring-28mm-M48-M48-1__45637.1597110685.1280.1280.jpg?v=1684340512"},{"product_id":"baader-hyperion-morpheus-extension-m43","title":"Baader Hyperion \/ Morpheus Extension - M43","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCustomizes eyecup height for optimal eye placement\u003c\/li\u003e\n\u003cli\u003eProvides a secure clamping surface for smartphone adapters\u003c\/li\u003e\n\u003cli\u003eStackable design for eyepiece projection spacing\u003c\/li\u003e\n\u003cli\u003eM43 threads for direct compatibility with Baader Hyperion and Morpheus eyepieces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eBaader Hyperion \/ Morpheus Extension - M43\u003c\/h2\u003e\n      \u003cp\u003eThe Baader Hyperion \/ Morpheus M43 Extension is a threaded spacer ring designed to customize the ergonomics and imaging capabilities of Baader's premier eyepiece lines. This simple component allows you to precisely set the eyecup height for maximum visual comfort and provides the critical spacing needed for stable smartphone digiscoping and afocal eyepiece projection. By threading directly onto the M43 threads of Hyperion and Morpheus eyepieces, it integrates seamlessly into your optical train.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eFine-Tune Eyecup Height for Hyperion \u0026amp; Morpheus Eyepieces\u003c\/h3\u003e\n      \u003cp\u003eAchieving the perfect eye position is critical for comfortable viewing, especially during long sessions. This M43 extension ring threads between the eyepiece body and the eyecup, allowing you to fine-tune the height of the foldable or winged rubber eyecups found on Hyperion and Morpheus models. This adjustment helps you maintain the correct eye relief, block stray light, and create a more stable and immersive viewing experience.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eOptimize Spacing for Smartphone Adapters and Eyepiece Projection\u003c\/h3\u003e\n      \u003cp\u003eThis extension ring enhances stability for afocal imaging. It creates a more substantial surface for smartphone holders to clamp onto, ensuring your device remains firmly attached to the eyepiece. For more advanced eyepiece projection with a dedicated camera, multiple M43 extension rings can be stacked to achieve the exact distance required between the eyepiece and your camera's sensor for a sharp, fully illuminated image.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the primary purpose of the Baader M43 Extension for Hyperion\/Morpheus eyepieces?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe Baader M43 Extension serves two main functions: it allows you to \u003cstrong\u003ecustomize the height of the eyecup\u003c\/strong\u003e for better visual ergonomics, and it provides \u003cstrong\u003eadditional spacing and a secure surface\u003c\/strong\u003e for attaching smartphone adapters or setting up for eyepiece projection photography.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this M43 Extension improve visual observing with my Baader Morpheus eyepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eBy raising the eyecup, the extension helps you consistently place your eye at the correct distance from the eye lens. This is particularly useful with the winged eyecups on \u003cstrong\u003eBaader Morpheus eyepieces\u003c\/strong\u003e, as it helps block ambient light and reduces eye fatigue, allowing you to more easily perceive faint details on objects like the spiral arms of the Whirlpool Galaxy (M51).\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI'm trying to use a smartphone adapter with my Baader Hyperion eyepiece. Will this M43 extension help?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. Many smartphone adapters struggle to get a secure grip on the tapered top of an eyepiece. The \u003cstrong\u003eBaader M43 Extension\u003c\/strong\u003e provides a straight, cylindrical surface that allows the clamp to hold the phone much more securely, preventing slippage and ensuring better alignment for your photos of the Moon or planets.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I stack multiple Baader M43 Extension rings?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, these extension rings are designed to be stackable. You can thread multiple rings together to achieve a specific, longer extension distance. This is most commonly done for eyepiece projection photography, where precise spacing is critical to achieving focus and a good image scale.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy would I stack multiple M43 Extension rings for eyepiece projection with a DSLR?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eFor eyepiece projection, the distance between the eyepiece and the camera sensor determines the final magnification and image sharpness. Stacking \u003cstrong\u003eBaader M43 Extension rings\u003c\/strong\u003e allows you to incrementally adjust this projection distance to find the optimal spacing for your specific telescope and camera setup, giving you fine control over the final image scale of planetary targets like Jupiter or Saturn.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs this Baader M43 Extension compatible with other eyepiece brands?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis extension is specifically designed with \u003cstrong\u003eM43 threads\u003c\/strong\u003e to match Baader's Hyperion and Morpheus eyepiece lines. It is generally not compatible with other brands, which typically use different thread sizes or do not have removable eyecups.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e45\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eExtension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eM43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapters Family\u003c\/td\u003e\n\u003ctd\u003eM68 System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967317012765,"sku":"BAA-2954250","price":30.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Hyperion-Morpheus-Extension-M43-1__67566.1597110686.1280.1280.jpg?v=1684340487"},{"product_id":"baader-hyperion-2-finetuning-stopring-w-brass-clampring","title":"Baader Hyperion 2\" Finetuning Stopring w\/Brass Clampring","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eMakes 2-inch Baader Hyperion eyepieces parfocal\u003c\/li\u003e\n\u003cli\u003eSets a precise, repeatable focus position for each eyepiece\u003c\/li\u003e\n\u003cli\u003eIntegrated brass clamp ring prevents scratching or marring barrels\u003c\/li\u003e\n\u003cli\u003eSecurely locks with a side screw\u003c\/li\u003e\n\u003cli\u003eDesigned for 2-inch eyepiece barrels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Hyperion 2\" Finetuning Stopring w\/Brass Clampring\u003c\/h2\u003e\n\u003cp\u003eThe Baader Hyperion 2\" Finetuning Stopring is an essential accessory for making your 2-inch Hyperion eyepieces parfocal, saving valuable time at the telescope. By locking the ring at a precise height on your 2-inch eyepiece barrel, it ensures a consistent focus position and eliminates the need to refocus when switching between different focal lengths in the series.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAchieve Parfocality Across Your Baader Hyperion Eyepiece Set\u003c\/h3\u003e\n\u003cp\u003eThis ring allows you to calibrate your entire set of 2-inch Baader Hyperion eyepieces to come to focus at the same point. Once you determine the correct position for each eyepiece and lock the ring in place, you can swap between them without significant refocusing. This is critical for quickly comparing views at different magnifications or for outreach sessions where multiple people are observing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eMar-Free Clamping with an Integrated Brass Ring\u003c\/h3\u003e\n\u003cp\u003eUnlike simple stop rings that use a steel set screw to bite directly into your eyepiece, the Baader Finetuning Stopring features an integrated brass compression ring. When you tighten the lock screw, this soft brass ring gently and evenly squeezes the eyepiece barrel. This design provides a firm, secure grip that won't slip, while completely preventing the scratches and gouges that can devalue your optics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main purpose of the Baader Hyperion 2\" Finetuning Stopring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary purpose is to make a set of 2-inch Baader Hyperion eyepieces \u003cstrong\u003eparfocal\u003c\/strong\u003e. This means that once set, each eyepiece will reach focus at nearly the identical position, eliminating the need for major refocusing when you switch between them.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the brass clamp ring on this Baader stop ring protect my eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ring uses a \u003cstrong\u003ebrass compression mechanism\u003c\/strong\u003e. Brass is a softer metal than the anodized aluminum of an eyepiece barrel. When tightened, the brass ring clamps down securely without digging into or scratching the barrel's surface, preserving the finish and value of your eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Baader Hyperion 2\" Finetuning Stopring with non-Hyperion eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this stop ring will fit on any standard 2-inch eyepiece barrel. While it is designed to help parfocalize the Baader Hyperion series, it can be used with any 2-inch accessory where you need to set a consistent, repeatable insertion depth in a focuser or diagonal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I set up the Baader Hyperion 2\" Finetuning Stopring to make my eyepieces parfocal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eStart with the eyepiece in your set that requires the most \"out-focus\" travel. Focus on a star, then slide the ring down the barrel until it rests on top of your focuser or diagonal and lock it. Then, for each subsequent eyepiece, insert it, focus on the same star, and lock its ring in the same way. All eyepieces will now share a common focus point.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm observing Jupiter with my SCT and want to quickly switch between my 2\" Hyperion eyepieces. How does this stop ring help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen observing planets like Jupiter, seeing conditions can change in seconds. Having your eyepieces parfocalized with the Baader Hyperion 2\" Finetuning Stopring allows you to switch from a low-power overview to high-power detail in an instant, without losing focus. This ensures you can capitalize on moments of steady air without wasting time finding focus again.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen imaging with a camera, I use a 2\" Hyperion eyepiece to center the object. Will this ring help maintain focus?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. This is a perfect use case. You can place a Baader Hyperion 2\" Finetuning Stopring on both your centering eyepiece and your 2-inch camera nosepiece to make them parfocal. After centering the object with the eyepiece, you can swap it for your camera, and the object will be perfectly in focus, saving significant time and effort.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eBaader 2\" Hyperion Eyepieces \u0026amp; other 2\" accessories\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocking Mechanism\u003c\/td\u003e\n\u003ctd\u003eBrass Compression Ring with side lock screw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScrew Type\u003c\/td\u003e\n\u003ctd\u003e2x M3 clamping screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eUNC, Baader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping System\u003c\/td\u003e\n\u003ctd\u003eScrew clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e50.8 (2\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eVariable Focusing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eø 2\" (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eø 2\" (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdaptable to\u003c\/td\u003e\n\u003ctd\u003eFits also onto Morpheus® 76° eyepieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eHyperion 2\" Finetuning Stopring\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Hyperion_Eyepieces_Application_Examples.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Hyperion Eyepieces Application Examples\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Morpheus_Eyepieces_Information_and_Applications.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Morpheus Eyepieces Information and Applications\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967317143837,"sku":"BAA-2958027","price":35.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Hyperion-2-inch-Finetuning-Stopring-withBrass-Clampring-1__05512.1597110692.1280.1280.jpg?v=1684340519"},{"product_id":"baader-2-four-in-one-clamp-adapter-m68-zeiss-2-7-a-p-m60-vixen-m56-synta","title":"Baader 2\" Four-in-One Clamp Adapter M68 (Zeiss)\/2.7\" (A.P.)\/M60 (Vixen)\/M56 (Synta)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts four major large-format focusers to a 2\" clamp\u003c\/li\u003e\n\u003cli\u003eFemale threads: M68 (Zeiss), 2.7\" (Astro-Physics)\u003c\/li\u003e\n\u003cli\u003eFemale threads: M60 (Vixen), M56 (Synta\/Sky-Watcher)\u003c\/li\u003e\n\u003cli\u003eSecurely holds 2\" eyepieces and accessories\u003c\/li\u003e\n\u003cli\u003eReplaces the need for four separate adapters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eBaader 2\" Four-in-One Clamp Adapter M68\/2.7\"\/M60\/M56\u003c\/h2\u003e\n      \u003cp\u003eThe Baader 2\" Four-in-One Clamp Adapter solves a common equipment problem by creating a secure 2\" visual back for focusers with M68 (Zeiss), 2.7\" (Astro-Physics), M60 (Vixen), or M56 (Synta) male threads. This single, precision-machined component replaces the need for multiple brand-specific adapters, allowing you to use your 2\" eyepieces and accessories across a wide range of premium telescopes. It consolidates four separate connections—M68, 2.7\", M60, and M56—into one robust unit, simplifying your setup.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eA Universal 2\" Visual Back for M68, 2.7\", M60, and M56 Focusers\u003c\/h3\u003e\n      \u003cp\u003eThis adapter is designed for astronomers who own multiple telescopes or want a future-proof solution for connecting high-end accessories. By incorporating four of the most common large-format focuser threads into a single component, it ensures broad compatibility with equipment from leading manufacturers.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eM68 x 1mm Thread:\u003c\/strong\u003e The standard for Zeiss, and used on many Baader Planetarium components, including Steeltrack focusers and correcting optics.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e2.7\" Thread:\u003c\/strong\u003e The signature thread for Astro-Physics focusers, found on their legendary line of refracting telescopes.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eM60 Thread:\u003c\/strong\u003e Common on Vixen telescopes, particularly their larger refractors and reflectors like the VMC series.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eM56 x 1mm Thread:\u003c\/strong\u003e Widely used by Synta, the parent company of Sky-Watcher and Celestron, on many of their popular Esprit and EvoStar refractors.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \n    \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eThis Adapter vs. Four Separate Adapters: Consolidate Your Gear\u003c\/h3\u003e\n      \u003cp\u003eThe primary alternative to this component is to purchase four individual adapters. The Baader Four-in-One design offers distinct advantages by consolidating your kit, reducing the number of potential flexure points in your optical train, and ensuring a consistent connection method across all your telescopes. Instead of tracking multiple small parts, you have one reliable solution for all your 2\" accessory needs.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Baader Four-in-One Clamp Adapter attach to my telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe adapter features four sets of internal female threads. You simply screw the adapter directly onto the corresponding male thread on your telescope's focuser drawtube. For example, if you have a Vixen telescope with an M60 male thread, you would use the M60 portion of the adapter to connect it.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Baader adapter work with my Sky-Watcher Esprit refractor?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. Many Sky-Watcher Esprit models use an \u003cstrong\u003eM56 female thread\u003c\/strong\u003e on the focuser drawtube. This adapter is designed to connect to focusers with an M56 male thread, making it a perfect match for adding a secure 2\" visual back to those telescopes.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of the Baader Four-in-One clamp over a simple thumbscrew?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe Baader clamp uses a compression ring mechanism. When you tighten the thumbscrews, a soft metal ring tightens evenly around the barrel of your eyepiece or accessory. This provides three key benefits over a simple thumbscrew:\u003c\/p\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSecurity:\u003c\/strong\u003e It offers a much more secure, 360-degree grip, reducing the risk of heavy accessories slipping.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCentering:\u003c\/strong\u003e It keeps your eyepiece perfectly centered on the optical axis.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eProtection:\u003c\/strong\u003e It prevents the thumbscrew from directly marring or scratching the barrel of your expensive eyepieces.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Baader Four-in-One Clamp Adapter for astrophotography?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, this adapter is robust enough for astrophotography. Its one-piece design and secure compression clamp provide a solid, flex-free connection for camera noses, field flatteners, and other imaging accessories that use a standard 2\" barrel. The direct-thread connection to the focuser is much more rigid than stacked adapters.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI have an Astro-Physics refractor with a 2.7\" focuser. Is this the right adapter for my 2\" accessories?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, absolutely. The adapter includes the specific \u003cstrong\u003e2.7\" thread\u003c\/strong\u003e used by Astro-Physics focusers. It will thread directly onto your focuser, giving you a secure Baader 2\" clamp for all your diagonals, eyepieces, and other visual or imaging accessories.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Baader Four-in-One adapter add significant length to my optical path?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eWhile any adapter adds some length, this component is designed to be as mechanically short as possible. However, the exact optical path length is not specified. If you are using it with accessories that have critical backfocus requirements, like a reducer or flattener, you should confirm you have enough focuser in-travel to reach focus.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.19\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScrew Type\u003c\/td\u003e\n\u003ctd\u003e2x M4 clamping screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eUNC, Astro Physics, Baader Planetarium, Celestron, Skywatcher, Vixen, Zeiss\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping System\u003c\/td\u003e\n\u003ctd\u003eScrew clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e50.8 (2\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eEyepiece Clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e19, 13, 24, 31\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eø 2\" (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eM68 x 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM56 x 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM60 x 0.75, M68 x 1, 2.7\" Thread (68.5 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967326449949,"sku":"BAA-2458190","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-2-inch-Four-in-One-Clamp-Adapter-M68-Zeiss-2-7-inch-A-P-M60-Vixen-M56-Synta-1__73966.1597110763.1280.1280.jpg?v=1684340614"},{"product_id":"baader-four-in-one-adapter-m68-zeiss-2-7-a-p-m60-vixen-m56-synta-t-2","title":"Baader Four-In-One adapter M68 (Zeiss)\/2.7\" (A.P.)\/M60 (Vixen)\/M56 (Synta)\/T-2","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts M68 (Zeiss) accessories to multiple telescope focuser threads\u003c\/li\u003e\n\u003cli\u003eProvides native connection for 2.7\" (Astro-Physics) focusers\u003c\/li\u003e\n\u003cli\u003eProvides native connection for M60 (Vixen) focusers\u003c\/li\u003e\n\u003cli\u003eProvides native connection for M56 (Synta\/Sky-Watcher) focusers\u003c\/li\u003e\n\u003cli\u003eTerminates in a standard T-2 (M42x0.75) thread for cameras and accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eBaader Four-In-One adapter M68\/2.7\"\/M60\/M56\/T-2\u003c\/h2\u003e\n      \u003cp\u003eThe Baader Four-In-One adapter establishes a rigid, all-threaded connection between the professional M68 (Zeiss) system and telescopes using 2.7\" (Astro-Physics), M60 (Vixen), or M56 (Synta) focuser threads. By terminating in a universal T-2 thread, this single component creates a flexure-free imaging train that eliminates the tilt and sag inherent in slip-fit adapters, which is critical for professional-level photography and spectroscopy.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eThe M68 System: A Zero-Flexure Connection Standard\u003c\/h3\u003e\n      \u003cp\u003eFor advanced imaging, especially with heavy cameras or long accessories like telecentric systems, any amount of flexure can render results unusable. The Baader M68 system, based on the standard used in large Zeiss instruments, provides a large-diameter, fully-threaded connection point that serves as the foundation for a rock-solid optical train. This adapter is a key component for integrating that stability with a wide range of popular telescopes.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eFour Telescope Connections: From 2.7\" AP to M56 Synta\u003c\/h3\u003e\n      \u003cp\u003eInstead of relying on unstable, single-screw 2\" nosepieces, this adapter provides four distinct male threads to directly couple your M68 accessories to the telescope's focuser drawtube. This direct, threaded attachment is the most secure method for mounting heavy equipment, ensuring perfect alignment from the focuser to the sensor.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003e2.7\" Thread:\u003c\/strong\u003e For direct connection to Astro-Physics focusers.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eM68 Thread:\u003c\/strong\u003e The native Zeiss standard for Baader's Tele-Compendium and other professional accessories.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eM60 Thread:\u003c\/strong\u003e For Vixen telescopes and focusers.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eM56 Thread:\u003c\/strong\u003e For Synta-made focusers, commonly found on Sky-Watcher telescopes.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eT-2 Output Thread:\u003c\/strong\u003e Provides a secure connection point for cameras, filter wheels, and T-2 based accessories like a Baader FFC or Telecentric System.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat problem does the Baader Four-In-One adapter solve?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIt solves the problem of \u003cstrong\u003emechanical flexure\u003c\/strong\u003e in an astrophotography setup. Standard 2\" slip-fit adapters can tilt or sag under the weight of a camera and accessories, causing distorted stars and poor image quality. The Baader Four-In-One adapter creates a rigid, fully threaded connection from the telescope focuser to the camera, eliminating this source of error.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhich focusers is the Baader Four-In-One adapter compatible with?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter is designed to thread directly onto focusers that use one of four common standards:\u003c\/p\u003e\n    \u003cul\u003e\n     \u003cli\u003e\n\u003cstrong\u003e2.7\"\u003c\/strong\u003e (Common on Astro-Physics telescopes)\u003c\/li\u003e\n     \u003cli\u003e\n\u003cstrong\u003eM68x1\u003c\/strong\u003e (The Zeiss standard used by Baader)\u003c\/li\u003e\n     \u003cli\u003e\n\u003cstrong\u003eM60\u003c\/strong\u003e (Common on Vixen telescopes)\u003c\/li\u003e\n     \u003cli\u003e\n\u003cstrong\u003eM56\u003c\/strong\u003e (Common on Synta\/Sky-Watcher telescopes)\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cp\u003eAlways verify the thread specification of your specific focuser before purchasing.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I connect my Sky-Watcher telescope to a Baader M68 Tele-Compendium with this adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYou would thread the \u003cstrong\u003eM56 (Synta)\u003c\/strong\u003e side of the adapter directly onto your Sky-Watcher focuser's drawtube. The other side of the adapter provides the M68 thread needed to begin building your Baader Tele-Compendium system, ensuring a secure, flexure-free foundation.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this Baader adapter to connect my ZWO camera to an Astro-Physics focuser?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. You would thread the \u003cstrong\u003e2.7\"\u003c\/strong\u003e side of the adapter into your Astro-Physics focuser. The adapter's output is a standard \u003cstrong\u003eT-2 thread\u003c\/strong\u003e (M42x0.75), which is the native thread on most ZWO cameras. This provides a direct, rigid connection without any 1.25\" or 2\" nosepieces.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Baader Four-In-One adapter necessary for visual observing?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this adapter is specifically designed for astrophotography where rigidity is critical. For visual observing, a standard high-quality 2\" eyepiece holder or diagonal is perfectly sufficient and much more convenient for swapping eyepieces.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the M68 thread system?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe M68x1 thread is a large-diameter connection standard originally used by Zeiss on their professional instruments. Baader Planetarium adopted it for their modular accessory systems, like the Tele-Compendium, because its large, clear aperture and robust threads prevent both vignetting and mechanical flexure with heavy imaging equipment.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Side Threads\u003c\/td\u003e\n\u003ctd\u003eM68x1 (Zeiss), 2.7\" (Astro-Physics), M60 (Vixen), M56 (Synta)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessory Side Thread\u003c\/td\u003e\n\u003ctd\u003eT-2 (M42x0.75)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eUNC, Astro Physics, Baader Planetarium, Celestron, Skywatcher, Vixen, Zeiss\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e39\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e74\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eExpanding Adapter, Reducing Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsage\u003c\/td\u003e\n\u003ctd\u003eConnection for eyepiece projection with miniature and middle-format cameras\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75 (T-2), 2\"\/SCT Thread (50.8mm), M68 x 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM56 x 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM60 x 0.75, M68 x 1, 2.7\" Thread (68.5 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapters Family\u003c\/td\u003e\n\u003ctd\u003eM68 System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967326515485,"sku":"BAA-2458225","price":148.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Four-In-One-adapter-M68-Zeiss-2-7-inch-A-P-M60-Vixen-M56-Synta-T-2-1__50648.1597110764.1280.1280.jpg?v=1684340616"},{"product_id":"baader-clicklock-eyepiece-clamps-from-t-2-to-4-1","title":"Baader ClickLock Eyepiece Clamps - from T-2 to 4.1\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eReplaces standard thumbscrew holders with a secure twist-lock mechanism\u003c\/li\u003e\n\u003cli\u003eEnsures perfect axial alignment for eyepieces and cameras\u003c\/li\u003e\n\u003cli\u003eProvides a solid, non-marring grip on 1.25\" and 2\" barrels\u003c\/li\u003e\n\u003cli\u003eHeavy-duty design securely holds heavy accessories without slippage\u003c\/li\u003e\n\u003cli\u003eAvailable in dozens of thread options from T-2 (M42x0.75) to 4.1\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader ClickLock Eyepiece Clamps - from T-2 to 4.1\"\u003c\/h2\u003e\n\u003cp\u003eThe Baader ClickLock Eyepiece Clamps replace inadequate thumbscrew holders with a precision-engineered locking system, available in formats from the M42x0.75 T-2 thread to massive 4.1\" UNF threads for Feather Touch focusers. This system secures heavy 2\" eyepieces and imaging cameras with a simple, gentle twist of the outer ring, locking them onto the optical axis with perfect centering. With models available for nearly every major telescope and focuser—including adapters for 2\" SCT threads and M68 threads for Zeiss focusers—the ClickLock is a definitive upgrade for visual observers and imagers seeking mechanical perfection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe 2-Inch ClickLock Mechanism: A Gentle Twist for Perfect Centering\u003c\/h3\u003e\n\u003cp\u003eThe core of the ClickLock system is its innovative cam-lever mechanism. A light twist of the rubberized outer ring activates a three-point clamp that grips the eyepiece barrel evenly around its circumference. This concentric pressure distribution guarantees your accessory is perfectly centered and held rigidly, eliminating the possibility of tilt or wobble, even with heavy diagonals, cameras, or ultra-widefield eyepieces.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-Marring Grip:\u003c\/strong\u003e Unlike the focused pressure of a thumbscrew that can scratch and dent your eyepiece barrels, the ClickLock's distributed force holds accessories securely without causing cosmetic damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTactile Lock Confirmation:\u003c\/strong\u003e The mechanism provides clear acoustic and tactile feedback when locked, so you can be confident your equipment is secure, even when operating in complete darkness or with gloves on.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy Payload Security:\u003c\/strong\u003e The robust internal components are designed to hold significant weight. You can trust the ClickLock to support a full imaging train or a heavy 2\" eyepiece and Barlow combination without slipping.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUniversal Compatibility: Models for T-2, SCT, and Focusers up to 4.1\"\u003c\/h3\u003e\n\u003cp\u003eBaader offers an extensive range of ClickLock clamps to integrate with virtually any amateur telescope setup. Whether you are upgrading a standard SCT, a high-end refractor, or a custom-built Newtonian, there is a ClickLock model designed for a direct fit. This allows you to standardize your eyepiece holders across different instruments for a consistent, reliable user experience.\u003c\/p\u003e\n\u003cp\u003eThe system includes direct-thread adapters for focusers from Astro-Physics, Takahashi, Feather Touch (2.5\", 3.0\", and 3.5\"), Vixen, Zeiss, and Explore Scientific. Specific models are available for the common 2\" and 3.3\" SCT threads found on Celestron and Meade telescopes, as well as M56 and S57 ring-dovetails for Sky-Watcher and Celestron Newtonians, and the universal M42x0.75 T-2 thread for custom imaging trains.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eClickLock vs. Thumbscrews: Eliminating Tilt with 2-Inch Accessories\u003c\/h3\u003e\n\u003cp\u003eA standard thumbscrew holder is the weakest link in most optical trains. By applying pressure from a single point, it inherently pushes the eyepiece or camera barrel off-axis, introducing tilt. This misalignment degrades optical corrections, harms edge-of-field sharpness, and can make precise collimation impossible. For imaging, this tilt is a primary cause of elongated stars in the corners of the frame.\u003c\/p\u003e\n\u003cp\u003eThe Baader ClickLock system solves this problem completely. Its concentric clamping action ensures the accessory's barrel is held perfectly parallel to the focuser drawtube. This maintains the integrity of your telescope's optical axis from the objective all the way to the sensor or your eye, preserving the full sharpness and contrast your telescope is designed to deliver.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich Baader ClickLock clamp do I need for my Celestron 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor most Celestron 5\", 6\", and 8\" Schmidt-Cassegrain and EdgeHD telescopes, you will need the Baader ClickLock model with the standard \u003cstrong\u003e2\" SCT (Female) Thread\u003c\/strong\u003e. This clamp screws directly onto the rear cell of the telescope in place of the standard visual back.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Baader ClickLock prevent my eyepieces from getting scratched?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA traditional thumbscrew applies a high amount of pressure to a very small point, which can easily mar the soft aluminum of an eyepiece barrel. The \u003cstrong\u003eBaader ClickLock\u003c\/strong\u003e distributes the clamping force evenly around the entire circumference of the barrel. This firm but gentle grip holds the accessory securely without creating the dents and scratches common with thumbscrew designs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Baader ClickLock clamp for astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The Baader ClickLock is highly recommended for astrophotography. Its primary advantage is ensuring \u003cstrong\u003eperfect axial alignment\u003c\/strong\u003e, which eliminates sensor tilt—a major cause of poor star shapes in the corners of an image. The strong, reliable grip also prevents any movement or sagging within the imaging train, even with heavier cameras and filter wheels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill a Baader ClickLock clamp solve imaging train tilt with my Takahashi refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA Baader ClickLock can eliminate the tilt specifically occurring at the point where your 2\" accessory slides into the focuser. Baader makes several models, such as the \u003cstrong\u003eM72x1(M)\u003c\/strong\u003e and \u003cstrong\u003eM64x0.75(M)\u003c\/strong\u003e, that thread directly onto Takahashi focusers. While it ensures a perfectly aligned eyepiece holder, you should still check the rest of your imaging train for other potential sources of tilt, such as threaded adapters or the camera's mounting flange.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo Baader ClickLock clamps add length to the optical path?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, every eyepiece clamp adds some optical length. The exact amount varies by model. For telescopes with limited back focus, such as some Newtonians, it's important to verify you have enough focuser in-travel to accommodate the clamp. Baader also offers dedicated \u003cstrong\u003e37mm and 47mm ClickLock extensions\u003c\/strong\u003e for when you need to increase, rather than minimize, the optical path length.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Baader ClickLock clamp difficult to use with gloves on?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it is designed for field use. The outer locking ring is wide and has a rubberized, high-friction grip, making it easy to operate even with thick gloves in cold weather. The short, gentle twist required to lock or unlock an accessory is much easier to manage than fumbling with small thumbscrews.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable Options\u003c\/td\u003e\n\u003ctd\u003e1.25\" to 2\" (incl. 1.25\" barrel), 2.7\"(M) UNF\/24G (Astro-Physics), M68x0.75(F) (Hex Focuser from Explore Scientific), M63x1(M) (Feather Touch 2.5\"), M75x1(M) (Feather Touch 3.0\"), 4.1\" UNF\/24G(F) (Feather Touch 3.5\"), M48x0.75(F) Filter Thread, M84x1(M) (Pentax), 2\" SCT(F) Thread (5\" SCT, 6\" SCT\/HD, 8\" SCT\/HD, 9.25\" SCT), 3.3\" Large SCT Thread (9.25\" HD, 11\" SCT\/HD, 14\" SCT\/HD), M64x0.75(M) (Takahashi), M56x1(F) (Celestron \u0026amp; SkyWatcher), M74x1(F) (Sky-Watcher Esprit, TS-Optics, Omegon), M54x1(M) (Celestron, Sky-Watcher, Orion), M54x0.75(F) (Bresser, Orion, ES), M54(M) x 0.75 for TS-Optics \/ Skywatcher, S57\/Newton Ring-Dovetail (Celestron \u0026amp; Sky-Watcher), M42x0.75(F) (T-2), M72x1(M) (Takahashi), M56x0.75(F) (Takahashi), M60x0.75(M) (Vixen), M68x1(M) (Zeiss), S58 (Baader Diamond Steeltrack), 37mm Extension, 47mm Extension.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.20 (1.25\" to 2\" (incl. 1.25\" barrel), M75x1(M) (Feather Touch 3.0\"), M74x1(F) (Sky-Watcher Esprit, TS-Optics, Omegon), 47mm Extension)\u003cbr\u003e0.16 (2.7\"(M) UNF\/24G (Astro-Physics), M68x1(M) (Zeiss), 37mm Extension)\u003cbr\u003e0.18 (M68x0.75(F) (Hex Focuser from Explore Scientific), M63x1(M) (Feather Touch 2.5\"))\u003cbr\u003e0.32 (4.1\" UNF\/24G(F) (Feather Touch 3.5\"))\u003cbr\u003e0.15 (M48x0.75(F) Filter Thread, M42x0.75(F) (T-2))\u003cbr\u003e0.25 (M84x1(M) (Pentax))\u003cbr\u003e0.17 (2\" SCT(F) Thread (5\" SCT, 6\" SCT\/HD, 8\" SCT\/HD, 9.25\" SCT))\u003cbr\u003e0.22 (3.3\" Large SCT Thread (9.25\" HD, 11\" SCT\/HD, 14\" SCT\/HD), M72x1(M) (Takahashi))\u003cbr\u003e0.19 (M64x0.75(M) (Takahashi))\u003cbr\u003e0.14 (M56x1(F) (Celestron \u0026amp; SkyWatcher), M54x0.75(F) (Bresser, Orion, ES), M54(M) x 0.75 for TS-Optics \/ Skywatcher, S57\/Newton Ring-Dovetail (Celestron \u0026amp; Sky-Watcher), M60x0.75(M) (Vixen), S58 (Baader Diamond Steeltrack))\u003cbr\u003e0.12 (M54x1(M) (Celestron, Sky-Watcher, Orion))\u003cbr\u003e0.13 (M56x0.75(F) (Takahashi))\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium, Celestron, Meade, Skywatcher (1.25\" to 2\" (incl. 1.25\" barrel))\u003cbr\u003eAstro Physics, Feathertouch, TEC (2.7\"(M) UNF\/24G (Astro-Physics))\u003cbr\u003eZeiss (M68x0.75(F) (Hex Focuser from Explore Scientific), M63x1(M) (Feather Touch 2.5\"), M75x1(M) (Feather Touch 3.0\"), M74x1(F) (Sky-Watcher Esprit, TS-Optics, Omegon), M68x1(M) (Zeiss))\u003cbr\u003eSkywatcher (4.1\" UNF\/24G(F) (Feather Touch 3.5\"), M48x0.75(F) Filter Thread, M54x1(M) (Celestron, Sky-Watcher, Orion), M42x0.75(F) (T-2), 37mm Extension)\u003cbr\u003ePentax (M84x1(M) (Pentax))\u003cbr\u003eBaader Planetarium, Celestron, Zeiss (2\" SCT(F) Thread (5\" SCT, 6\" SCT\/HD, 8\" SCT\/HD, 9.25\" SCT))\u003cbr\u003eCelestron (3.3\" Large SCT Thread (9.25\" HD, 11\" SCT\/HD, 14\" SCT\/HD))\u003cbr\u003eTakahashi (M64x0.75(M) (Takahashi), M72x1(M) (Takahashi), M56x0.75(F) (Takahashi))\u003cbr\u003eCelestron, Meade, Skywatcher (M56x1(F) (Celestron \u0026amp; SkyWatcher), S57\/Newton Ring-Dovetail (Celestron \u0026amp; Sky-Watcher))\u003cbr\u003eBresser, Explore Scientific, Omegon (M54x0.75(F) (Bresser, Orion, ES))\u003cbr\u003eBaader Planetarium, Skywatcher, TS-Optics (M54(M) x 0.75 for TS-Optics \/ Skywatcher)\u003cbr\u003eVixen (M60x0.75(M) (Vixen))\u003cbr\u003eBaader Planetarium (S58 (Baader Diamond Steeltrack))\u003cbr\u003eAll Telescopes in given Tube sizes (47mm Extension)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping System\u003c\/td\u003e\n\u003ctd\u003eClickLock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e28 (1.25\" to 2\" (incl. 1.25\" barrel))\u003cbr\u003e50.8 (2\") (2.7\"(M) UNF\/24G (Astro-Physics), M68x0.75(F) (Hex Focuser from Explore Scientific), M63x1(M) (Feather Touch 2.5\"), M75x1(M) (Feather Touch 3.0\"), 4.1\" UNF\/24G(F) (Feather Touch 3.5\"), M84x1(M) (Pentax), 2\" SCT(F) Thread (5\" SCT, 6\" SCT\/HD, 8\" SCT\/HD, 9.25\" SCT), 3.3\" Large SCT Thread (9.25\" HD, 11\" SCT\/HD, 14\" SCT\/HD), M64x0.75(M) (Takahashi), M56x1(F) (Celestron \u0026amp; SkyWatcher), M74x1(F) (Sky-Watcher Esprit, TS-Optics, Omegon), M54x1(M) (Celestron, Sky-Watcher, Orion), M54x0.75(F) (Bresser, Orion, ES), M54(M) x 0.75 for TS-Optics \/ Skywatcher, S57\/Newton Ring-Dovetail (Celestron \u0026amp; Sky-Watcher), M72x1(M) (Takahashi), M56x0.75(F) (Takahashi), M60x0.75(M) (Vixen), M68x1(M) (Zeiss), S58 (Baader Diamond Steeltrack), 37mm Extension, 47mm Extension)\u003cbr\u003e48 (M48x0.75(F) Filter Thread)\u003cbr\u003e42 (M42x0.75(F) (T-2))\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e68 (1.25\" to 2\" (incl. 1.25\" barrel), M68x0.75(F) (Hex Focuser from Explore Scientific), M48x0.75(F) Filter Thread, 2\" SCT(F) Thread (5\" SCT, 6\" SCT\/HD, 8\" SCT\/HD, 9.25\" SCT), M64x0.75(M) (Takahashi), M56x1(F) (Celestron \u0026amp; SkyWatcher), M54x1(M) (Celestron, Sky-Watcher, Orion), M54x0.75(F) (Bresser, Orion, ES), M54(M) x 0.75 for TS-Optics \/ Skywatcher, S57\/Newton Ring-Dovetail (Celestron \u0026amp; Sky-Watcher), M42x0.75(F) (T-2), M56x0.75(F) (Takahashi), M60x0.75(M) (Vixen), M68x1(M) (Zeiss), S58 (Baader Diamond Steeltrack), 37mm Extension, 47mm Extension)\u003cbr\u003e84.5 (2.7\"(M) UNF\/24G (Astro-Physics), M72x1(M) (Takahashi))\u003cbr\u003e112 (4.1\" UNF\/24G(F) (Feather Touch 3.5\"))\u003cbr\u003e94 (M84x1(M) (Pentax))\u003cbr\u003e89.5 (3.3\" Large SCT Thread (9.25\" HD, 11\" SCT\/HD, 14\" SCT\/HD))\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eNosepiece, Expanding Adapter, Eyepiece Clamp (1.25\" to 2\" (incl. 1.25\" barrel))\u003cbr\u003eEyepiece Clamp (2.7\"(M) UNF\/24G (Astro-Physics), M68x0.75(F) (Hex Focuser from Explore Scientific), M63x1(M) (Feather Touch 2.5\"), M75x1(M) (Feather Touch 3.0\"), 4.1\" UNF\/24G(F) (Feather Touch 3.5\"), M48x0.75(F) Filter Thread, M84x1(M) (Pentax), 2\" SCT(F) Thread (5\" SCT, 6\" SCT\/HD, 8\" SCT\/HD, 9.25\" SCT), 3.3\" Large SCT Thread (9.25\" HD, 11\" SCT\/HD, 14\" SCT\/HD), M64x0.75(M) (Takahashi), M56x1(F) (Celestron \u0026amp; SkyWatcher), M74x1(F) (Sky-Watcher Esprit, TS-Optics, Omegon), M54x1(M) (Celestron, Sky-Watcher, Orion), M54x0.75(F) (Bresser, Orion, ES), M54(M) x 0.75 for TS-Optics \/ Skywatcher, S57\/Newton Ring-Dovetail (Celestron \u0026amp; Sky-Watcher), M42x0.75(F) (T-2), M72x1(M) (Takahashi), M56x0.75(F) (Takahashi), M60x0.75(M) (Vixen), M68x1(M) (Zeiss), S58 (Baader Diamond Steeltrack))\u003cbr\u003eNosepiece, Extension, Eyepiece Clamp (37mm Extension, 47mm Extension)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e47 (1.25\" to 2\" (incl. 1.25\" barrel), 2\" SCT(F) Thread (5\" SCT, 6\" SCT\/HD, 8\" SCT\/HD, 9.25\" SCT), 47mm Extension)\u003cbr\u003e31 (2.7\"(M) UNF\/24G (Astro-Physics), M68x1(M) (Zeiss))\u003cbr\u003e37 (M68x0.75(F) (Hex Focuser from Explore Scientific), 37mm Extension)\u003cbr\u003e39 (M63x1(M) (Feather Touch 2.5\"))\u003cbr\u003e39.5 (M75x1(M) (Feather Touch 3.0\"))\u003cbr\u003e30 (4.1\" UNF\/24G(F) (Feather Touch 3.5\"), M54x1(M) (Celestron, Sky-Watcher, Orion), M54x0.75(F) (Bresser, Orion, ES), S57\/Newton Ring-Dovetail (Celestron \u0026amp; Sky-Watcher), M56x0.75(F) (Takahashi), M60x0.75(M) (Vixen))\u003cbr\u003e36.6 (M48x0.75(F) Filter Thread, M42x0.75(F) (T-2))\u003cbr\u003e40 (M84x1(M) (Pentax), 3.3\" Large SCT Thread (9.25\" HD, 11\" SCT\/HD, 14\" SCT\/HD), M64x0.75(M) (Takahashi))\u003cbr\u003e30 mm (M56x1(F) (Celestron \u0026amp; SkyWatcher), S58 (Baader Diamond Steeltrack))\u003cbr\u003e44 (M74x1(F) (Sky-Watcher Esprit, TS-Optics, Omegon))\u003cbr\u003e35 (M54(M) x 0.75 for TS-Optics \/ Skywatcher)\u003cbr\u003e41 (M72x1(M) (Takahashi))\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eø 2\" (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM28.5 (1.25\" to 2\" (incl. 1.25\" barrel))\u003cbr\u003eM68 x 0.75 (M68x0.75(F) (Hex Focuser from Explore Scientific))\u003cbr\u003e4.1\" Thread (104.1 mm) (4.1\" UNF\/24G(F) (Feather Touch 3.5\"))\u003cbr\u003eM48 (M48x0.75(F) Filter Thread, 47mm Extension)\u003cbr\u003e2\"\/SCT Thread (50.8mm) (2\" SCT(F) Thread (5\" SCT, 6\" SCT\/HD, 8\" SCT\/HD, 9.25\" SCT))\u003cbr\u003e3.3\"\/SCT Thread (84.2 mm) (3.3\" Large SCT Thread (9.25\" HD, 11\" SCT\/HD, 14\" SCT\/HD))\u003cbr\u003eM56 x 1 (M56x1(F) (Celestron \u0026amp; SkyWatcher))\u003cbr\u003eM74 x 1 (M74x1(F) (Sky-Watcher Esprit, TS-Optics, Omegon))\u003cbr\u003eM54 x 0.75 (M54x0.75(F) (Bresser, Orion, ES))\u003cbr\u003eM42 x 0.75 (T-2) (M42x0.75(F) (T-2))\u003cbr\u003eM56 x 0.75 (M56x0.75(F) (Takahashi))\u003cbr\u003eS52 (37mm Extension)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eø 1¼\" (31.75 mm) (1.25\" to 2\" (incl. 1.25\" barrel))\u003cbr\u003e2.7\" Thread (68.5 mm) (2.7\"(M) UNF\/24G (Astro-Physics))\u003cbr\u003eM63 x 1 (M63x1(M) (Feather Touch 2.5\"))\u003cbr\u003eM75 x 1 (M75x1(M) (Feather Touch 3.0\"))\u003cbr\u003eM84 x 1 (M84x1(M) (Pentax))\u003cbr\u003eM64 x 0.75 (M64x0.75(M) (Takahashi))\u003cbr\u003eM54 x 1 (M54x1(M) (Celestron, Sky-Watcher, Orion))\u003cbr\u003eM54 x 0.75 (M54(M) x 0.75 for TS-Optics \/ Skywatcher)\u003cbr\u003eS57 (S57\/Newton Ring-Dovetail (Celestron \u0026amp; Sky-Watcher))\u003cbr\u003eM60 x 0.75 (M60x0.75(M) (Vixen))\u003cbr\u003eM68 x 1 (M68x1(M) (Zeiss))\u003cbr\u003eS58 (S58 (Baader Diamond Steeltrack))\u003cbr\u003eø 2\" (50.8mm) (37mm Extension, 47mm Extension)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader ClickLock Clamp (Selected Model)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_ClickLock_Lever_Adjustment_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium ClickLock Lever Adjustment Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_ClickLock_Clamps_Product_Information.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium ClickLock Clamps Product Information\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_2in_ClickLock_System_Overview.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium 2in ClickLock System Overview\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"1.25\" to 2\" (incl. 1.25\" barrel)","offer_id":44967326646557,"sku":"BAA-2956215","price":139.0,"currency_code":"CAD","in_stock":true},{"title":"2.7\"(M) UNF\/24G (Astro-Physics)","offer_id":44967326679325,"sku":"BAA-2956227","price":137.0,"currency_code":"CAD","in_stock":true},{"title":"M68x0.75(F) (Hex Focuser from Explore Scientific)","offer_id":44967326712093,"sku":"BAA-2956269","price":145.0,"currency_code":"CAD","in_stock":true},{"title":"M63x1(M) (Feather Touch 2.5\")","offer_id":44967326744861,"sku":"BAA-2956263","price":188.0,"currency_code":"CAD","in_stock":true},{"title":"M75x1(M) (Feather Touch 3.0\")","offer_id":44967326777629,"sku":"BAA-2956275","price":231.0,"currency_code":"CAD","in_stock":true},{"title":"4.1\" UNF\/24G(F) (Feather Touch 3.5\")","offer_id":44967326810397,"sku":"BAA-2956241","price":271.0,"currency_code":"CAD","in_stock":true},{"title":"M48x0.75(F) Filter Thread","offer_id":44967326843165,"sku":"BAA-2956248","price":137.0,"currency_code":"CAD","in_stock":true},{"title":"M84x1(M) (Pentax)","offer_id":44967326875933,"sku":"BAA-2956284","price":178.0,"currency_code":"CAD","in_stock":true},{"title":"2\" SCT(F) Thread (5\" SCT, 6\" SCT\/HD, 8\" SCT\/HD, 9.25\" SCT)","offer_id":44967326908701,"sku":"BAA-2956220","price":129.0,"currency_code":"CAD","in_stock":true},{"title":"3.3\" Large SCT Thread (9.25\" HD, 11\" SCT\/HD, 14\" SCT\/HD)","offer_id":44967326941469,"sku":"BAA-2956233","price":148.0,"currency_code":"CAD","in_stock":true},{"title":"M64x0.75(M) (Takahashi)","offer_id":44967326974237,"sku":"BAA-2956264","price":152.0,"currency_code":"CAD","in_stock":true},{"title":"M56x1(F) (Celestron \u0026 SkyWatcher)","offer_id":44967327007005,"sku":"BAA-2956256","price":126.0,"currency_code":"CAD","in_stock":true},{"title":"M74x1(F) (Sky-Watcher Esprit, TS-Optics, Omegon)","offer_id":44967327039773,"sku":"BAA-2956274","price":162.0,"currency_code":"CAD","in_stock":true},{"title":"M54x1(M) (Celestron, Sky-Watcher, Orion)","offer_id":44967327072541,"sku":"BAA-2956254","price":129.0,"currency_code":"CAD","in_stock":true},{"title":"M54x0.75(F) (Bresser, Orion, ES)","offer_id":44967327105309,"sku":"BAA-2956253","price":118.0,"currency_code":"CAD","in_stock":true},{"title":"M54(M) x 0.75 for TS-Optics \/ Skywatcher","offer_id":49365659615517,"sku":"BAA-2956251","price":140.0,"currency_code":"CAD","in_stock":true},{"title":"S57\/Newton Ring-Dovetail (Celestron \u0026 Sky-Watcher)","offer_id":44967327138077,"sku":"BAA-2956257","price":130.0,"currency_code":"CAD","in_stock":true},{"title":"M42x0.75(F) (T-2)","offer_id":44967327170845,"sku":"BAA-2956242","price":146.0,"currency_code":"CAD","in_stock":true},{"title":"M72x1(M) (Takahashi)","offer_id":44967327203613,"sku":"BAA-2956272","price":166.0,"currency_code":"CAD","in_stock":true},{"title":"M56x0.75(F) (Takahashi)","offer_id":44967327236381,"sku":"BAA-2956255","price":116.0,"currency_code":"CAD","in_stock":true},{"title":"M60x0.75(M) (Vixen)","offer_id":44967327269149,"sku":"BAA-2956260","price":134.0,"currency_code":"CAD","in_stock":true},{"title":"M68x1(M) (Zeiss)","offer_id":44967327301917,"sku":"BAA-2956268","price":134.0,"currency_code":"CAD","in_stock":true},{"title":"S58 (Baader Diamond Steeltrack)","offer_id":44967327334685,"sku":"BAA-2956258","price":124.0,"currency_code":"CAD","in_stock":true},{"title":"37mm Extension","offer_id":44967327367453,"sku":"BAA-2956237","price":130.0,"currency_code":"CAD","in_stock":true},{"title":"47mm Extension","offer_id":44967327400221,"sku":"BAA-2956247","price":132.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader-ClickLock-Eyepiece-Clamps-from-T-2-to-4-1-inch-1__07330.1597110772.1280.1280.jpg?v=1684340868"},{"product_id":"baader-diascope-bayonet-eyepiece-adapter-1-25","title":"Baader Diascope Bayonet Eyepiece Adapter - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts Zeiss Diascope Bayonet to a standard 1.25\" eyepiece holder\u003c\/li\u003e\n\u003cli\u003eUnlocks access to the entire 1.25\" astronomical eyepiece market\u003c\/li\u003e\n\u003cli\u003eEnables use of specialized planetary, wide-field, and filtered eyepieces\u003c\/li\u003e\n\u003cli\u003ePrecision-machined for a secure, stable connection to the spotting scope\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Diascope Bayonet Eyepiece Adapter - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe Baader Diascope Bayonet Eyepiece Adapter bridges the gap between world-class Zeiss spotting scope optics and the universal 1.25\" astronomical eyepiece standard. This simple, robust adapter converts the proprietary Zeiss bayonet mount, allowing you to pair your scope with an extensive range of high-performance eyepieces from any manufacturer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAccess the Astronomical 1.25\" Eyepiece Ecosystem\u003c\/h3\u003e\n\u003cp\u003eWhile Zeiss eyepieces are excellent, their proprietary nature limits your options. This Baader adapter fundamentally changes that, opening your Diascope to the vast market of 1.25\" eyepieces. You can now select the perfect ocular for any situation, from high-magnification planetary eyepieces for detailed observation to ultra-wide-field designs for immersive, sweeping views of landscapes or star fields.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSecure Bayonet Design: Proper Use and Installation\u003c\/h3\u003e\n\u003cp\u003eThe adapter is engineered for a precise and secure fit within the Zeiss bayonet. To ensure correct operation, it is critical to insert a 1.25\" eyepiece into the adapter *before* attaching it to the spotting scope. Installing the adapter by itself results in insufficient grip for later removal, creating a risk of it becoming stuck in the scope's body.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the Baader Diascope Bayonet Eyepiece Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter allows you to use standard 1.25\" astronomical eyepieces on Zeiss spotting scopes that feature the proprietary Diascope bayonet mount, greatly expanding your choice of magnifications and fields of view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use a Tele Vue Nagler eyepiece with my Zeiss Diascope 85 T* FL using this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. If your Tele Vue Nagler eyepiece has a standard 1.25\" barrel, this adapter will allow you to connect it securely to the Zeiss Diascope's bayonet mount, unlocking its wide-field views for your spotting scope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI want wider views for birdwatching with my Zeiss Diascope. Will this adapter help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This adapter gives you access to a wide variety of 1.25\" astronomical eyepieces, including many wide-field designs that may offer a more expansive view than standard Zeiss options, which can be ideal for tracking birds in flight.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is it important to install the Baader Diascope Adapter with an eyepiece already in it?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter is designed for a very snug fit. Without an eyepiece inserted, there is not enough surface area to grip the adapter for removal. Installing it with an eyepiece provides the necessary leverage to both attach and detach it safely from the spotting scope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter compatible with all spotting scopes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This adapter is specifically designed only for \u003cstrong\u003eZeiss spotting scopes\u003c\/strong\u003e that use the proprietary \u003cstrong\u003eDiascope bayonet mount\u003c\/strong\u003e. It will not work with other brands or other Zeiss models that do not use this specific connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main advantage of using the Baader Diascope Adapter over standard Zeiss eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is \u003cstrong\u003echoice\u003c\/strong\u003e. It opens up your premium Zeiss optics to the entire ecosystem of 1.25\" astronomical eyepieces, allowing you to select eyepieces optimized for specific targets, magnifications, or apparent fields of view that may not be available from Zeiss directly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapter Type\u003c\/td\u003e\n\u003ctd\u003eBayonet to 1.25\" Receptacle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScope-Side Connection\u003c\/td\u003e\n\u003ctd\u003eZeiss Diascope Bayonet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece-Side Connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" Eyepiece Holder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Compatibility\u003c\/td\u003e\n\u003ctd\u003eZeiss Diascope Spotting Scopes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eZeiss, Mixed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping System\u003c\/td\u003e\n\u003ctd\u003eScrew clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e31.75 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e41 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eø 1¼\" (31.75 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdaptable to\u003c\/td\u003e\n\u003ctd\u003eZeiss Fluorit-Diascope\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Diascope Bayonet Eyepiece Adapter - 1.25\"\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Special_Eyepieces_for_Zeiss_FL_Diascope_Spotting_Scopes_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Special Eyepieces for Zeiss FL Diascope Spotting Scopes Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Bayonet_Adapter_for_Zeiss_Diascopes_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Bayonet Adapter for Zeiss Diascopes Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967327531293,"sku":"BAA-2454500","price":89.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader-Diascope-Bayonet-Eyepiece-Adapter-1-25-inch-1__72916.1597110781.1280.1280.jpg?v=1684340972"},{"product_id":"baader-diascope-bayonet-eyepiece-adapter-2","title":"Baader Diascope Bayonet Eyepiece Adapter - 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts Zeiss Diascope eyepieces to a standard 2\" focuser\u003c\/li\u003e\n\u003cli\u003eFeatures the proprietary Zeiss bayonet mount\u003c\/li\u003e\n\u003cli\u003ePrecision-machined for a secure, non-marring connection\u003c\/li\u003e\n\u003cli\u003eUnlocks world-class terrestrial optics for astronomical observation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Diascope Bayonet Eyepiece Adapter - 2\"\u003c\/h2\u003e\n\u003cp\u003eThe Baader Diascope Bayonet Eyepiece Adapter bridges the gap between world-class terrestrial optics and astronomy, allowing you to use any Zeiss Diascope eyepiece in a standard 2-inch telescope focuser. This simple, robust adapter unlocks the legendary optical quality of Zeiss spotting scope eyepieces for observing the night sky.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAdapt Premium Zeiss Optics for 2-Inch Astronomical Focusers\u003c\/h3\u003e\n\u003cp\u003eMany observers already own or have access to superb Zeiss Diascope eyepieces, known for their exceptional sharpness and contrast in high-end spotting scopes. This adapter provides the specific bayonet connection required by these eyepieces on one side and a standard 2-inch barrel on the other, opening up a new range of high-end oculars for your astronomical telescope.\u003c\/p\u003e\n\u003cp\u003eThe adapter is precisely machined to ensure a secure, perfectly centered fit, maintaining the optical alignment critical for high-magnification viewing. While terrestrial eyepieces may not always be optimized for the fast focal ratios of some astronomical telescopes, their on-axis definition is often unparalleled, making them an excellent choice for planetary, lunar, and double-star observation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the Baader Diascope Bayonet Adapter - 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter allows you to connect eyepieces made for \u003cstrong\u003eZeiss Diascope spotting scopes\u003c\/strong\u003e, which use a proprietary bayonet mount, to any astronomical telescope that accepts standard \u003cstrong\u003e2-inch eyepieces\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich eyepieces are compatible with this Baader adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed to fit all Zeiss-made Diascope eyepieces that feature the bayonet connection. It is not compatible with standard 1.25\" or 2\" eyepieces from other manufacturers or eyepieces that use threaded connections.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this Baader adapter in my 8\" SCT's 2-inch diagonal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. If your 8\" Schmidt-Cassegrain Telescope is equipped with a 2-inch visual back and a 2-inch star diagonal, this adapter will fit perfectly. This combination allows you to leverage the high-contrast views of Zeiss optics for planetary and lunar observing with your SCT.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy would I use a Zeiss spotting scope eyepiece in my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eZeiss has a long-standing reputation for producing some of the finest optics in the world. Their Diascope eyepieces are prized for their sharpness, high contrast, and excellent color correction. If you already own these for birding or nature viewing, this adapter lets you use that same optical excellence for astronomy without buying a new set of dedicated eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Baader adapter introduce any optical issues when viewing the Moon?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the adapter itself is purely a mechanical component and contains no optical elements. It is designed to hold the eyepiece securely and in precise alignment with the telescope's optical axis. The view of the Moon will be determined entirely by the quality of your telescope and the attached Zeiss Diascope eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Baader Diascope Bayonet Adapter add significant length to the optical path?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAs a simple mechanical adapter, it adds a minimal amount of length. Most telescopes, particularly Schmidt-Cassegrains and refractors, have sufficient focuser travel to easily accommodate this adapter and reach focus without any issues.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.05\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eZeiss\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e37 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e54 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eEyepiece Clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75 (T-2), M48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eø 2\" (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75 (T-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM44\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Diascope Bayonet to 2\" Eyepiece Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967327564061,"sku":"BAA-2454502","price":107.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Diascope-Bayonet-Eyepiece-Adapter-2-inch-1__38513.1597110783.1280.1280.jpg?v=1684341000"},{"product_id":"baader-budget-eyepiece-clamp-1-25-t-2","title":"Baader Budget Eyepiece Clamp -1.25\"\/T-2","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts T-2 (M42x0.75) Threads to a 1.25\" Eyepiece Holder\u003c\/li\u003e\n\u003cli\u003eProvides a Standard 1.25\" Receptacle for Eyepieces and Accessories\u003c\/li\u003e\n\u003cli\u003ePart of the Baader Astro T-2 System\u003c\/li\u003e\n\u003cli\u003eCost-Effective and Compact Design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eBaader Budget Eyepiece Clamp - 1.25\"\/T-2\u003c\/h2\u003e\n      \u003cp\u003eThe Baader Budget Eyepiece Clamp provides a direct and reliable mechanical connection between any component of the Baader T-2 system and a standard 1.25\" eyepiece or accessory. It is the most straightforward way to terminate a T-2 threaded accessory, like a diagonal or filter wheel, with a secure holder for visual observation. This clamp is engineered for simplicity and function, offering a compact and cost-effective solution for integrating 1.25\" format accessories into your T-2 setup.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eThe Essential T-2 to 1.25\" Connection\u003c\/h3\u003e\n      \u003cp\u003eThis eyepiece clamp serves a fundamental role within the modular Baader Astro T-2 System. Its female T-2 threads allow it to attach directly to T-2 diagonals, extension tubes, off-axis guiders, and other components, converting them to accept 1.25\" eyepieces. This makes it an indispensable part for creating custom visual-backs or adding a simple eyepiece port to an imaging train for alignment and centering.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eBudget Clamp vs. ClickLock: Simplicity and Trade-Offs\u003c\/h3\u003e\n      \u003cp\u003eWhile Baader's premium ClickLock clamps offer a self-centering, twist-lock mechanism that prevents marring eyepiece barrels, the Budget Eyepiece Clamp prioritizes simplicity and affordability. The primary trade-off is the locking mechanism; this clamp uses a traditional method that is effective but lacks the convenience and uniform pressure of the ClickLock system. For observers who need a lightweight, low-profile, and economical T-2 to 1.25\" adapter for a dedicated setup, the Budget Clamp is the practical choice.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the primary function of the Baader Budget Eyepiece Clamp?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe primary function of this Baader clamp is to adapt any accessory with a male \u003cstrong\u003eT-2 (M42x0.75) thread\u003c\/strong\u003e into a female \u003cstrong\u003e1.25\" receptacle\u003c\/strong\u003e. This allows you to insert standard 1.25\" eyepieces, Barlows, or other visual accessories into a T-2 threaded component like a diagonal or filter wheel.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Baader Budget Clamp differ from the Baader ClickLock eyepiece clamp?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe main difference is the locking mechanism. The \u003cstrong\u003eBudget Clamp\u003c\/strong\u003e uses a simple, direct locking method. The \u003cstrong\u003eClickLock clamp\u003c\/strong\u003e features a more advanced twist-to-lock system that provides perfectly centered, uniform pressure without marking your eyepiece barrels. The Budget Clamp is a more compact and economical solution, while the ClickLock offers superior ergonomics and security.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Baader Budget Eyepiece Clamp with a T-2 Prism Star Diagonal?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, absolutely. The Baader T-2 Prism Star Diagonal is a perfect application for this clamp. You can thread the Budget Clamp directly onto the eyepiece-side T-2 thread of the diagonal to create a simple and secure 1.25\" visual back.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Baader clamp add significant length to my optical path?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe Baader Budget Eyepiece Clamp is designed to be a low-profile adapter. While it does add some optical length, it is one of the more compact ways to convert a T-2 thread to a 1.25\" holder, making it a good choice for systems with limited back focus. For a precise value, you would need to consult the Baader T-2 system chart for its exact optical length.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of accessories can I connect this Baader clamp to?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYou can connect it to any accessory that features a male T-2 thread. This includes a wide range of components from the Baader Astro T-2 System, such as:\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003eT-2 Star Diagonals (Prism or Mirror)\u003c\/li\u003e\n      \u003cli\u003eT-2 Extension Tubes\u003c\/li\u003e\n      \u003cli\u003eThe eyepiece port on some Off-Axis Guiders\u003c\/li\u003e\n      \u003cli\u003eT-2 compatible Filter Wheels or Drawers\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Baader Budget Clamp suitable for holding a heavy camera?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this clamp is designed specifically for holding relatively lightweight 1.25\" visual accessories like eyepieces and Barlow lenses. It is not recommended for securing heavier items like DSLRs or dedicated astronomy cameras, which require a more robust, threaded connection to prevent flexure and ensure safety.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScrew Type\u003c\/td\u003e\n\u003ctd\u003eM4 clamping screw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eAstro T-2, UNC, Baader Planetarium, Celestron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping System\u003c\/td\u003e\n\u003ctd\u003eScrew clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e31.75 (1¼\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e45\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eEyepiece Clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e23.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsage\u003c\/td\u003e\n\u003ctd\u003efor rotation clamping\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eø 1¼\" (31.75 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75 (T-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Astro_T-2_System_Connections_Overview.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Astro T-2 System Connections Overview\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Astro_T-2_System_Parts_List.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Astro T-2 System Parts List\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967327629597,"sku":"BAA-2458120","price":30.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Budget-Eyepiece-Clamp-1-25-inch-T-2-1__91568.1597110784.1280.1280.jpg?v=1684341005"},{"product_id":"baader-ultrashort-clamp-1-25-t-2","title":"Baader  Ultrashort Clamp - 1.25\"\/T-2","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects 1.25\" accessories to T-2 threads\u003c\/li\u003e\n\u003cli\u003eUltrashort design minimizes optical path length\u003c\/li\u003e\n\u003cli\u003eIdeal for complex imaging trains with limited back focus\u003c\/li\u003e\n\u003cli\u003eSecurely holds eyepieces and camera nosepieces\u003c\/li\u003e\n\u003cli\u003ePrevents marring of accessory barrels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Ultrashort Clamp - 1.25\"\/T-2\u003c\/h2\u003e\n\u003cp\u003eThe Baader Ultrashort 1.25\"\/T-2 Clamp is an essential component for astrophotographers building precise imaging trains where every millimeter of back focus is critical. It provides a secure, self-centering connection for any 1.25\" accessory to a standard T-2 (M42x0.75) thread while consuming the absolute minimum optical path length. This adapter is the solution for achieving focus when integrating accessories like filter wheels, off-axis guiders, or adaptive optics into a system with strict back-focus requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBaader Ultrashort Clamp: Solving Back-Focus in T-2 Systems\u003c\/h3\u003e\n\u003cp\u003eModern imaging systems, especially those using field flatteners or focal reducers, have a fixed and often very limited back-focus distance. The Baader Ultrashort Clamp is engineered specifically to address this constraint. By eliminating unnecessary length, it allows you to fit more components into the optical path without preventing the system from reaching a sharp focus.\u003c\/p\u003e\n\u003cp\u003eThis makes it indispensable for connecting guide cameras, planetary cameras with 1.25\" nosepieces, or eyepieces for parfocal alignment within a T-2 threaded setup. Where a standard adapter would consume too much of your available focus travel, the Ultrashort Clamp ensures you have the room needed for your critical accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSecure, Non-Marring Grip for 1.25\" Accessories\u003c\/h3\u003e\n\u003cp\u003eUnlike basic adapters that rely on simple thumbscrews, a high-quality clamp provides a more secure and gentle grip on your valuable accessories. This mechanism ensures that your camera nosepiece or eyepiece is held perfectly concentric with the optical axis, which is vital for maintaining collimation and achieving sharp, round stars across the field.\u003c\/p\u003e\n\u003cp\u003eThe clamping action distributes pressure evenly around the barrel, preventing the scratches and gouges that thumbscrews can cause. This not only preserves the cosmetic condition of your equipment but also provides a more stable connection that is less likely to shift or tilt during an imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the primary use for the Baader Ultrashort Clamp?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary use is to connect a 1.25\" accessory (like a camera nosepiece or eyepiece) to a T-2 threaded component (like a filter wheel or off-axis guider) while using the smallest possible amount of optical path. It's a problem-solver for astrophotographers with limited back focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Baader Ultrashort Clamp help with accessories on my SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen using a focal reducer on a Schmidt-Cassegrain Telescope (SCT), you have a specific back-focus distance you must maintain for optimal correction. The Baader Ultrashort Clamp allows you to insert 1.25\" accessories into your T-2 threaded imaging train without exceeding that critical distance, ensuring your field remains flat and stars are sharp to the edge.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this clamp hold my 1.25\" accessories securely without wobble?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The clamp design is inherently more secure than a simple thumbscrew adapter. It provides a positive, self-centering grip around the entire barrel of your accessory, preventing tilt and ensuring a rigid connection to your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Baader Ultrashort Clamp for connecting a guide camera to an off-axis guider?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis is an excellent application for the clamp. If your off-axis guider (OAG) has a T-2 threaded port for the guide camera and your guide camera uses a 1.25\" nosepiece, this clamp provides the tight, low-profile connection needed to reach focus on the guide star, which often requires precise spacing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are T-2 threads on the Baader Ultrashort Clamp?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eT-2 threads\u003c\/strong\u003e (also known as M42x0.75) are a universal standard in astronomy for connecting accessories. This clamp features female T-2 threads, allowing it to screw directly onto a wide range of flatteners, reducers, filter wheels, and other T-2 compatible equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Baader Ultrashort Clamp just for imaging, or can I use it for visual observing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile designed with imaging in mind, it is perfectly suitable for visual use. If you have a T-2 diagonal or other T-2 accessory and need to use a 1.25\" eyepiece, this provides a very secure, high-quality connection that is superior to basic adapters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.05\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping System\u003c\/td\u003e\n\u003ctd\u003eScrew clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e1.25\" (31.75mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eEyepiece Clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eT-2 Part #\u003c\/td\u003e\n\u003ctd\u003e8C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eø 1¼\" (31.75 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75 (T-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdaptable to\u003c\/td\u003e\n\u003ctd\u003eGuiding Cameras\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Star_Diagonals_T-2_and_2in_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Star Diagonals T-2 and 2in Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967327695133,"sku":"BAA-2458121","price":46.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/ultrashort-1-1-4-t-2-clamp-379__42585.1642101902.1280.1280.jpg?v=1684341007"},{"product_id":"baader-focusing-eyepiece-holder-1-25-t-2","title":"Baader Focusing Eyepiece Holder - 1.25\"\/T-2","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdds precise helical focusing to any T-2 thread\u003c\/li\u003e\n\u003cli\u003eAccepts standard 1.25\" eyepieces and accessories\u003c\/li\u003e\n\u003cli\u003eDual clampscrews for a balanced, secure hold\u003c\/li\u003e\n\u003cli\u003eInternal brass compression ring prevents marring barrels\u003c\/li\u003e\n\u003cli\u003eIntegrates seamlessly with the Baader Astro T-2 System\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Focusing Eyepiece Holder - 1.25\"\/T-2\u003c\/h2\u003e\n\u003cp\u003eThe Baader 1.25\" \/ T-2 Focusing Eyepiece Holder adds precise helical focus adjustment to any standard T-2 thread in your optical train. Its internal compression ring and dual clampscrews provide a secure, non-marring grip on any 1.25\" eyepiece, guide camera, or accessory, making it an essential component for fine-tuning focus independently of your main telescope focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePrecise, Independent Focus Adjustment for 1.25\" Accessories\u003c\/h3\u003e\n\u003cp\u003eThis holder solves the common problem of achieving perfect, independent focus for a guide camera or a reticle eyepiece. By rotating the knurled ring, you can make minute focus adjustments without disturbing the main focuser, which is critical when it's locked down for imaging. It's an indispensable tool for turning a simple finder scope into a capable guide scope or for perfectly sharpening the crosshairs of a centering eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSecure, Non-Marring Grip: Dual Clampscrews and Compression Ring\u003c\/h3\u003e\n\u003cp\u003eUnlike basic holders that use a single screw to bite directly into your accessories, the Baader Focusing Eyepiece Holder employs a more robust and safer system. The dual clampscrews apply balanced pressure, while the internal brass compression ring distributes the force evenly around the barrel. This design ensures your 1.25\" eyepiece or camera is held perfectly centered and rigid, without leaving the scratches and gouges caused by single-screw designs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main purpose of the Baader 1.25\"\/T-2 Focusing Eyepiece Holder?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary purpose is to provide fine, independent focus control for a 1.25\" accessory within a T-2 threaded system. This is especially useful for achieving sharp focus on a guide camera in an off-axis guider (OAG) or guide scope, or for focusing a reticle eyepiece, without altering the main telescope's focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow can I use this Baader holder to focus a guide camera on my finder scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIf your finder scope has a T-2 thread output, you can attach this holder directly. After achieving rough focus with the finder's main focuser, you insert your 1.25\" guide camera into the Baader holder. You can then use the smooth helical mechanism to make very fine adjustments until your guide stars are perfectly sharp, turning a basic finder into a high-precision guide scope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Baader Focusing Eyepiece Holder damage my eyepiece barrels?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This holder is specifically designed to prevent damage. It uses an internal \u003cstrong\u003ebrass compression ring\u003c\/strong\u003e that tightens uniformly around the eyepiece barrel. This avoids the scratches and gouges often caused by simple thumbscrews that press directly onto the barrel's surface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of the dual clampscrews on this Baader T-2 holder?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe dual clampscrews, positioned opposite each other, provide a more balanced and secure grip than a single screw. This ensures the eyepiece or camera is held perfectly centered in the optical axis, preventing tilt that can degrade guiding or viewing accuracy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Baader Focusing Eyepiece Holder add significant length to the optical path?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, like any accessory, it adds to the overall length of your optical train. While the exact length depends on the focus position, you must ensure your telescope has sufficient back focus to accommodate it. This is a critical consideration for systems with limited back focus, such as some Newtonian reflectors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this Baader holder integrate with other T-2 system components?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Baader T-2 system is a modular set of rings, adapters, and spacers. This focusing holder features standard T-2 (M42x0.75) female threads on the telescope side, allowing it to connect to any other T-2 male thread, such as those on off-axis guiders, filter wheels, or extension tubes. This allows for building custom, rigid imaging trains.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.05\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScrew Type\u003c\/td\u003e\n\u003ctd\u003e3x M3 clamping screws and M3 Rotations-Feststellschraube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eAstro T-2, UNC, Baader Planetarium, Celestron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping System\u003c\/td\u003e\n\u003ctd\u003eScrew clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e31.75 (1¼\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e47\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eEyepiece Clamp, Variable Focusing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e29 – 35.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eT-2 Part #\u003c\/td\u003e\n\u003ctd\u003e08A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eø 1¼\" (31.75 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75 (T-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Astro_T-2_System_Connections_Overview.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Astro T-2 System Connections Overview\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Star_Diagonals_T-2_and_2in_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Star Diagonals T-2 and 2in Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Digiscoping_Camera_Adaptations_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Digiscoping Camera Adaptations Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_MPCC_Mark_III_Coma_Corrector_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium MPCC Mark III Coma Corrector Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Astro_T-2_System_Parts_List.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Astro T-2 System Parts List\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967327727901,"sku":"BAA-2458125","price":67.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Focusing-Eyepiece-Holder-1-25-inch-T-2-1__01526.1597110788.1280.1280.jpg?v=1684341015"},{"product_id":"baader-focusing-eyepiece-holder-1-25-m36-4m","title":"Baader Focusing Eyepiece Holder - 1.25\"\/M36.4(M)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdds precise focusing to 1.25\" eyepieces or accessories\u003c\/li\u003e\n\u003cli\u003eConnects to female M36.4 Vixen-style threads\u003c\/li\u003e\n\u003cli\u003eIdeal for finderscopes, guidescopes, and other fixed-focus systems\u003c\/li\u003e\n\u003cli\u003eDurable, all-metal construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Focusing Eyepiece Holder - 1.25\"\/M36.4(M)\u003c\/h2\u003e\n\u003cp\u003eThe Baader Focusing Eyepiece Holder provides a precise focusing mechanism for any 1.25\" eyepiece, adapting it for use with hardware featuring the female M36.4 Vixen-style thread. This component solves the common problem of achieving sharp focus in optical systems that lack their own fine-adjustment focuser, such as many stock finderscopes and guidescopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFine-Tune Focus for 1.25\" Eyepieces on M36.4 Vixen Threads\u003c\/h3\u003e\n\u003cp\u003eThis adapter is a simple but critical tool for anyone needing to add independent focus control to their imaging or observing train. By rotating the barrel, you can make minute adjustments to achieve perfect focus without disturbing the main telescope focuser, which is essential for parfocalizing eyepieces or focusing a guide camera.\u003c\/p\u003e\n\u003cp\u003eIt's an essential upgrade for turning a basic Vixen-threaded guidescope into a high-functioning finder when paired with a reticle eyepiece. The adapter's smooth action allows you to bring both the guide stars and the crosshairs into simultaneous, sharp focus.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Focus Control:\u003c\/strong\u003e Allows for fine adjustments, critical for achieving sharp focus with guide cameras or making a set of eyepieces parfocal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVixen M36.4 Standard:\u003c\/strong\u003e The male M36.4 thread connects directly to many Vixen finderscopes and other accessories, expanding their utility with standard 1.25\" eyepieces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Clamping:\u003c\/strong\u003e Firmly holds any 1.25\" eyepiece or accessory, ensuring no slippage or tilt during focusing or observation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the Baader M36.4 Focusing Eyepiece Holder primarily used for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis holder is designed to solve two problems at once: it adapts standard \u003cstrong\u003e1.25\" eyepieces\u003c\/strong\u003e and accessories to equipment with a female \u003cstrong\u003eM36.4 Vixen thread\u003c\/strong\u003e, and it adds a \u003cstrong\u003efine-focusing mechanism\u003c\/strong\u003e. This is ideal for guidescopes or finderscopes that lack their own precise focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this Baader holder to turn my Vixen guidescope into a crosshair finder?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a perfect application. By inserting a 1.25\" reticle eyepiece into the holder, you can use the focusing mechanism to achieve a sharp view of both the background stars and the eyepiece's crosshairs, turning a simple guidescope into a fully functional finder.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the M36.4 Vixen thread?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe M36.4 thread is a specific metric thread standard used by Vixen on the eyepiece side of many of their finderscopes and other small optical accessories. This Baader adapter allows you to connect the vast ecosystem of 1.25\" eyepieces and cameras to these Vixen products.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Baader Focusing Eyepiece Holder add length to the optical path?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, like any adapter or focuser, it adds optical length. You must ensure your telescope or guidescope has sufficient back focus (or \"in-focus\") travel to accommodate this additional length and still reach a sharp focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I focus my guide camera with the Baader M36.4 holder?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSimply insert the 1.25\" nosepiece of your guide camera into the holder and secure it. Then, while viewing the camera's live feed, rotate the holder's barrel to make fine adjustments until your target guide star is a sharp, tight point of light. This allows you to focus the guider independently of the main imaging camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this Baader holder secure the eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe holder uses a secure clamping mechanism, typically one or more non-marring thumbscrews or a compression ring, to hold the 1.25\" barrel of an eyepiece or camera firmly in place. This prevents wobble and maintains optical alignment as you focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.07\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScrew Type\u003c\/td\u003e\n\u003ctd\u003e3x M3 clamping screws and M3 Rotations-Feststellschraube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eAstro T-2, Baader Planetarium, Takahashi, Vixen, Other\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping System\u003c\/td\u003e\n\u003ctd\u003eScrew clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e31.75 (1¼\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e47\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eEyepiece Clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e29 – 35.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eT-2 Part #\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsage\u003c\/td\u003e\n\u003ctd\u003eholds 1¼\" eyepieces on Vixen M36.4 threads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eø 1¼\" (31.75 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM36.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Astro_T-2_System_Connections_Overview.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Astro T-2 System Connections Overview\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Astro_T-2_System_Parts_List.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Astro T-2 System Parts List\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967327826205,"sku":"BAA-2408195","price":70.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Focusing-Eyepiece-Holder-1-25-inch-M36-4-M-1__90381.1597110789.1280.1280.jpg?v=1684340619"},{"product_id":"baader-hyperion-zoom-mark-iv-to-m54-kowa-tsn-770-880","title":"Baader Hyperion Zoom Mark IV to M54 Kowa TSN 770\/880","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Baader Hyperion Zoom Mark IV to Kowa spotting scopes\u003c\/li\u003e\n\u003cli\u003eDesigned for Kowa TSN 770 and TSN 880 series\u003c\/li\u003e\n\u003cli\u003eUtilizes the scope's native M54 male thread\u003c\/li\u003e\n\u003cli\u003eReplaces the standard Kowa eyepiece for astronomical-grade viewing\u003c\/li\u003e\n\u003cli\u003ePrecision-machined for a secure, no-flex connection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Hyperion Zoom Mark IV to M54 Kowa TSN 770\/880 Adapter\u003c\/h2\u003e\n\u003cp\u003eThis Baader adapter ring directly connects your Hyperion Zoom Mark IV eyepiece to the M54\/M53 thread on Kowa's premium TSN 770 and TSN 880 series spotting scopes. By replacing the stock eyepiece, you can leverage the renowned optical quality and click-stop zoom mechanism of a dedicated astronomical eyepiece for both terrestrial and celestial observation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM54 Adapter: Pair the Hyperion Zoom Mark IV with Kowa TSN 770\/880 Scopes\u003c\/h3\u003e\n\u003cp\u003eThis connecting ring is engineered for a single purpose: to create a seamless, secure link between two exceptional optical systems. It threads directly onto the M54 male thread revealed when you remove the standard eyepiece from your Kowa TSN 770 or 880 spotter, providing the correct interface for the Baader Hyperion Zoom Mark IV. This opens up new possibilities for high-magnification nature observation, digiscoping, and casual astronomical viewing with your spotting scope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the Baader Hyperion M54 adapter on my Kowa TSN 880 scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is straightforward. First, carefully unthread and remove the stock eyepiece from your \u003cstrong\u003eKowa TSN 770 or 880\u003c\/strong\u003e spotting scope. This will expose the male M54 thread on the body of the scope. Then, simply thread the Baader M54 adapter ring onto this exposed thread until it is snug. Finally, thread your \u003cstrong\u003eBaader Hyperion Zoom Mark IV\u003c\/strong\u003e eyepiece into the adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of using the Hyperion Zoom Mark IV on a Kowa spotting scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Baader Hyperion Zoom Mark IV is a premium astronomical eyepiece known for its sharp optics, comfortable eye relief, and distinct, tactile click-stops at multiple focal lengths. Using it on a Kowa spotting scope allows you to bring this level of optical refinement and ergonomic feedback to terrestrial viewing, which can be a significant upgrade over standard spotting scope eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Baader adapter work with Kowa scopes other than the TSN 770 and 880?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed for the M54 male thread found on the \u003cstrong\u003eKowa TSN 770 and TSN 880 series\u003c\/strong\u003e. While it may physically thread onto other Kowa models that share this exact thread, correct focus and optical performance are only guaranteed for the specified models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this M54 adapter to attach other astronomical eyepieces to my Kowa scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is purpose-built to connect the \u003cstrong\u003eBaader Hyperion Zoom Mark IV\u003c\/strong\u003e eyepiece only. It will not work with standard 1.25\" or 2\" astronomical eyepieces, which require a different type of adapter (a diagonal or eyepiece holder).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Baader Hyperion Zoom Mark IV adapter affect the scope's waterproof rating?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eReplacing the original manufacturer's eyepiece with any third-party adapter and eyepiece combination may compromise the instrument's original weather sealing or waterproofing. It is best to assume the setup is no longer fully waterproof and take precautions in wet or dusty environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter required for digiscoping with the Hyperion Zoom on a Kowa TSN 770?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. To use the Baader Hyperion Zoom Mark IV for any purpose—visual or photographic—on a Kowa TSN 770 or 880 scope, this adapter is the essential mechanical link. Once the eyepiece is attached using this ring, you can then add camera adapters to the eyepiece itself for digiscoping.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eAdapter Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Connection\u003c\/td\u003e\n\u003ctd\u003eBaader Hyperion Universal Zoom Mark IV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003eM54 \/ M53 Female Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eKowa TSN 770\/880 Spotting Scopes (and others with M54 male thread)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eExpanding Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e4.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM54 x 0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eHyperion Zoom Mark IV to Kowa M54 Adapter Ring\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967327858973,"sku":"BAA-2454836","price":49.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader-Hyperion-Zoom-Mark-IV-to-M54-Kowa-TSN-770-880-1__77435.1597110792.1280.1280.jpg?v=1684340621"},{"product_id":"baader-zero-optical-length-adapter-2-sctm-m41-5x1f-zoom-mark-iv-to-spotting-scopes","title":"Baader Zero Optical Length Adapter - 2\" SCT(M)-M41.5x1(F) Zoom Mark IV to Spotting Scopes","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Baader Hyperion Zoom Mark IV to select spotting scopes\u003c\/li\u003e\n\u003cli\u003eMale Thread: 2\" SCT (Schmidt-Cassegrain)\u003c\/li\u003e\n\u003cli\u003eFemale Thread: M41.5x1\u003c\/li\u003e\n\u003cli\u003eCompatible Brands: Bausch \u0026amp; Lomb, Opticron, Kowa\u003c\/li\u003e\n\u003cli\u003eZero optical length design prevents focus issues\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Zero Optical Length Adapter - 2\" SCT(M)-M41.5x1(F) Zoom Mark IV to Spotting Scopes\u003c\/h2\u003e\n\u003cp\u003eThe Baader Zero Optical Length Adapter provides a direct, secure connection between the Baader Hyperion Zoom Mark IV eyepiece and spotting scopes using an M41.5x1 external thread. Its precision \"zero-length\" design adds 0mm to the optical path, ensuring you can reliably reach infinity focus with compatible scopes from Bausch \u0026amp; Lomb, Opticron, and Kowa. This adapter features a male 2\" SCT thread on the eyepiece side and the specific female M41.5x1 thread required by these spotting scope bodies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e0mm Optical Length: Maintain Critical Focuser Travel\u003c\/h3\u003e\n\u003cp\u003eSpotting scopes are designed with very limited back focus, meaning there is little tolerance for accessories that extend the eyepiece outward. This adapter is engineered to be as thin as possible, consuming 0mm of optical path length. This ensures that the focal plane remains within the travel range of your spotter's focuser, preventing the frustrating inability to achieve a sharp image at infinity that can occur with generic, bulkier adapters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM41.5x1 Thread for Bausch \u0026amp; Lomb, Opticron, and Kowa\u003c\/h3\u003e\n\u003cp\u003eThis is not a universal adapter; it is a dedicated solution for attaching the Hyperion Zoom Mark IV to spotting scopes that feature a male M41.5x1 thread on their eyepiece port. By threading directly onto the scope's body, you create a rigid, perfectly centered connection that eliminates the flexure and potential misalignment common with universal adapters that use thumbscrews or compression rings. This solid link is essential for maintaining the optical quality of both your spotting scope and the Mark IV eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the Baader Zero Optical Length Adapter used for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed to connect the \u003cstrong\u003eBaader Hyperion Zoom Mark IV eyepiece\u003c\/strong\u003e to spotting scopes that have a male \u003cstrong\u003eM41.5x1 thread\u003c\/strong\u003e on the eyepiece port. It allows you to use a high-quality astronomical zoom eyepiece for terrestrial observation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the \"zero optical length\" feature important for this Baader adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSpotting scopes have very little extra focuser travel. A \"zero optical length\" design means the adapter is extremely thin and does not extend the eyepiece position backward, ensuring you can still achieve a sharp \u003cstrong\u003einfinity focus\u003c\/strong\u003e. Thicker, generic adapters can often prevent a spotting scope from focusing at long distances.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich specific eyepieces work with this Baader M41.5x1 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is made exclusively for the \u003cstrong\u003eBaader Hyperion Universal Zoom Mark IV eyepiece\u003c\/strong\u003e. It attaches to the eyepiece's male 2\" SCT thread. It is not designed for other eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Baader adapter fit my spotting scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter will only fit spotting scopes that have a male M41.5x1 thread for eyepiece attachment. It is confirmed to be compatible with specific models from \u003cstrong\u003eBausch \u0026amp; Lomb, Opticron, and Kowa\u003c\/strong\u003e. Always check your spotting scope's manual or measure its eyepiece thread before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this Baader adapter improve upon a generic 1.25\" adapter for my Hyperion Zoom on a Kowa spotting scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter provides a direct-threaded, rigid connection. A generic adapter often relies on a simple drop-in fit with thumbscrews, which can introduce tilt and flexure, degrading the image. The Baader adapter's threaded M41.5x1 connection ensures perfect alignment and stability, preserving the optical integrity of your high-end Kowa scope and Hyperion eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Baader Hyperion Zoom Mark IV for birdwatching with a Bausch \u0026amp; Lomb scope using this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. If your Bausch \u0026amp; Lomb scope has the correct M41.5x1 thread, this adapter allows you to leverage the exceptional sharpness, contrast, and convenient click-stop zoom mechanism of the Hyperion Mark IV for high-magnification birdwatching and other daytime terrestrial viewing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eConnects Hyperion Zoom Mark IV to select spotting scopes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Side Thread\u003c\/td\u003e\n\u003ctd\u003e2\" SCT (Male)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScope Side Thread\u003c\/td\u003e\n\u003ctd\u003eM41.5x1 (Female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Path Length\u003c\/td\u003e\n\u003ctd\u003e0mm (\"Zero-Length\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBausch \u0026amp; Lomb, Opticron, Kowa-Basis-Spotters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e40.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e50.8mm (2\" SC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eReducing Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eM41.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003e2\"\/SCT Thread (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM41.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003e2\"\/SCT Thread (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Zero Optical Length Adapter - 2\" SCT(M)-M41.5x1(F)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967327891741,"sku":"BAA-2454832","price":59.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader-Zero-Optical-Length-Adapter-2-inch-SCT-M-M41-5x1-F-Zoom-Mark-IV-to-Spotting-Scopes-1__95018.1597110794.1280.1280.jpg?v=1684340636"},{"product_id":"baader-zero-optical-length-adapter-2-sctm-m44x1f-zoom-mark-iv-to-spotting-scopes","title":"Baader Zero Optical Length Adapter - 2\" SCT(M)-M44x1(F) Zoom Mark IV to Spotting Scopes","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Baader Hyperion Zoom Mark IV to M44x1 threads\u003c\/li\u003e\n\u003cli\u003eMale 2\" SCT thread for eyepiece connection\u003c\/li\u003e\n\u003cli\u003eFemale M44x1 thread for spotting scope connection\u003c\/li\u003e\n\u003cli\u003eZero optical length design prevents focus issues\u003c\/li\u003e\n\u003cli\u003eCompatible with select Leica and classic Carl Zeiss-Jena spotting scopes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Zero Optical Length Adapter - 2\" SCT(M)-M44x1(F)\u003c\/h2\u003e\n\u003cp\u003eThe Baader Zero Optical Length Adapter directly connects the renowned Hyperion Zoom Mark IV eyepiece to spotting scopes and other instruments using a male M44x1 thread. By converting the eyepiece's native 2\" SCT thread to the M44x1 standard, it enables high-end astronomical zoom capabilities for specific Leica and classic Carl Zeiss-Jena spotters that would otherwise be incompatible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eConnect the Hyperion Zoom Mark IV to M44x1 Threads\u003c\/h3\u003e\n\u003cp\u003eThis adapter solves a highly specific connection problem: mating the Baader Hyperion Zoom Mark IV with its female 2\" SCT thread to spotting scopes that feature a male M44x1 connection thread. This standard is found on certain high-end Leica spotting scopes and classic optical systems from Carl Zeiss-Jena, allowing you to use a single, versatile zoom eyepiece for both astronomical and terrestrial viewing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eMaintain Critical Focus with a Zero Optical Length Design\u003c\/h3\u003e\n\u003cp\u003eThe term \"Zero Optical Length\" is critical; the adapter is engineered to consume no additional back focus. Spotting scopes have notoriously limited focuser travel, and any standard adapter would likely push the eyepiece too far out to reach infinity focus. This Baader adapter ensures the eyepiece's field stop is placed at the correct focal plane, making sharp focus possible across the entire zoom range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the primary use for the Baader Zero Optical Length Adapter (2\" SCT to M44x1)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts sole purpose is to connect the \u003cstrong\u003eBaader Hyperion Zoom Mark IV eyepiece\u003c\/strong\u003e to spotting scopes or other optical devices that have a male \u003cstrong\u003eM44x1 connection thread\u003c\/strong\u003e. This includes specific models from Leica and older equipment from Carl Zeiss-Jena.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Baader adapter work with my Leica spotting scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is compatible only with Leica spotting scopes that feature an \u003cstrong\u003eM44x1 male thread\u003c\/strong\u003e for eyepiece attachment. You must verify the specific thread on your spotting scope model before purchasing, as Leica has used various connection standards over the years.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does \"Zero Optical Length\" mean for this Baader adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\"Zero Optical Length\" means the adapter is designed to not add any length to the optical path. This is crucial for systems with limited focuser travel, like spotting scopes, as it ensures you can still reach infinity focus with the \u003cstrong\u003eHyperion Zoom Mark IV eyepiece\u003c\/strong\u003e attached.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this Baader Zero Optical Length Adapter to connect other eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This adapter is specifically designed for the Baader Hyperion Zoom Mark IV, which has a female 2\" SCT thread concealed under its rubber eyeguard. It will not work with standard 1.25\" or 2\" push-fit eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI want to use my Hyperion Zoom on a modern Kowa spotting scope. Will this Baader M44x1 adapter work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter will not work. Modern Kowa spotting scopes use a proprietary bayonet mount, not the M44x1 thread this adapter is designed for. You would need a different, Kowa-specific adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach the Baader Zero Optical Length Adapter to my Hyperion Zoom Mark IV eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, you must unscrew and remove the 1.25\" barrel and the 2\" barrel from the base of the Hyperion Zoom Mark IV. This will expose a female 2\" SCT thread. The male 2\" SCT thread on the adapter then screws directly into this exposed thread on the eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e50.8mm (2\" SC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eReducing Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eM44\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003e2\"\/SCT Thread (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM44\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003e2\"\/SCT Thread (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty Policy\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967327924509,"sku":"BAA-2454835","price":46.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader-Zero-Optical-Length-Adapter-2-inch-SCT-M-M44x1-F-Zoom-Mark-IV-to-Spotting-Scopes-1__50751.1597110796.1280.1280.jpg?v=1684340652"},{"product_id":"baader-eyepiece-adapter-1-25-m41-morpheus-to-kowa-tsn-770-880","title":"Baader Eyepiece Adapter - 1.25\"\/M41 Morpheus to Kowa TSN 770\/880","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts Baader Morpheus eyepieces to Kowa spotting scopes\u003c\/li\u003e\n\u003cli\u003eCompatible with Kowa TSN 770 and TSN 880 models\u003c\/li\u003e\n\u003cli\u003eUtilizes the M41 thread on Morpheus eyepieces for a secure, direct connection\u003c\/li\u003e\n\u003cli\u003eUnlocks the use of 1.25\" wide-field astronomical eyepieces on premium terrestrial scopes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Eyepiece Adapter - 1.25\"\/M41 Morpheus to Kowa TSN 770\/880\u003c\/h2\u003e\n\u003cp\u003eThis Baader Eyepiece Adapter connects Baader's Morpheus 1.25\" eyepieces directly to the bayonet mount of Kowa's premier TSN 770 and TSN 880 spotting scopes. By leveraging the secure M41 thread native to the Morpheus eyepiece design, this adapter unlocks the immersive, wide-field views of astronomical eyepieces for high-end terrestrial observation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM41 Adapter: Bring Baader Morpheus Views to Your Kowa 770\/880 Scope\u003c\/h3\u003e\n\u003cp\u003eKowa's spotting scopes are legendary for their optical clarity, but this adapter opens a new avenue of optical configuration. It allows you to replace the stock Kowa zoom eyepiece with any of the fixed-focal-length Baader Morpheus eyepieces, trading the convenience of a zoom for the expansive, tack-sharp field of a dedicated astronomical eyepiece.\u003c\/p\u003e\n\u003cp\u003eThe direct M41 threaded connection ensures perfect optical alignment and mechanical rigidity, with no risk of wobble or misalignment from a standard slip-fit adapter. This is the definitive solution for birders, nature observers, and long-range shooters who want to combine the best of German astronomical engineering with Japan's finest terrestrial optics for the widest possible field of view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the Baader M41 to Kowa TSN adapter allow me to do?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter allows you to physically connect a \u003cstrong\u003eBaader Morpheus 1.25\" eyepiece\u003c\/strong\u003e to a \u003cstrong\u003eKowa TSN 770 or TSN 880 spotting scope\u003c\/strong\u003e. It replaces the standard Kowa eyepiece, letting you use a high-end, wide-field astronomical eyepiece for terrestrial viewing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter compatible with any 1.25\" eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. While the Morpheus eyepieces fit a 1.25\" focuser, this adapter is specifically designed to use the \u003cstrong\u003eM41 thread\u003c\/strong\u003e found on the body of Baader Morpheus eyepieces. This creates a more secure, rigid connection than a standard 1.25\" compression ring or thumbscrew holder, ensuring perfect alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I lose any functions using the Baader Morpheus adapter on my Kowa 880 scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. By replacing the stock Kowa eyepiece, you will trade the variable magnification of the zoom eyepiece for the fixed magnification and wider apparent field of view of a Morpheus eyepiece. This is a deliberate trade-off for observers who prioritize an immersive, expansive view over the ability to change magnification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy use a fixed Baader Morpheus eyepiece for birdwatching with my TSN 770?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA wide-field eyepiece like a Baader Morpheus makes it significantly easier to acquire and track moving targets, such as birds in flight. The expansive view feels more natural and immersive, and it allows you to see more of the surrounding environment, which can be critical for spotting a bird as it enters the frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Baader M41 adapter require tools for installation?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The adapter is designed for tool-free installation. It connects to the Kowa spotting scope's bayonet mount, and the Morpheus eyepiece then threads directly onto the adapter's M41 threads.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 1.25\" filters with the Baader M41 Morpheus adapter setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The Baader Morpheus eyepieces themselves feature standard 1.25\" filter threads on their barrels. The adapter does not interfere with this, so you can still use any 1.25\" filter (like a polarizing or UV filter for terrestrial use) by threading it onto the Morpheus eyepiece before attaching it to the adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eOther\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping System\u003c\/td\u003e\n\u003ctd\u003eScrew clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e31.75 (1¼\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e41.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eEyepiece Clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e4.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eø 1¼\" (31.75 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM41\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967328153885,"sku":"BAA-2454520","price":57.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader-Eyepiece-Adapter-1-25-inch-M41-Morpheus-to-Kowa-TSN-770-880-1__40743.1597110802.1280.1280.jpg?v=1684340679"},{"product_id":"baader-adapter-2-nexstar-4-c90-etx","title":"Baader Adapter - 2\" NexStar 4 (C90)\/ETX","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Celestron C90\/NexStar 4 and Meade ETX telescopes to 2\" accessories\u003c\/li\u003e\n\u003cli\u003eEnables the use of 2\" diagonals for wider true fields of view\u003c\/li\u003e\n\u003cli\u003eAccepts 2\" eyepieces for low-power, rich-field observing\u003c\/li\u003e\n\u003cli\u003eProvides a rigid, single-piece connection for astrophotography\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Adapter - 2\" NexStar 4 (C90)\/ETX\u003c\/h2\u003e\n\u003cp\u003eThe Baader 2\" NexStar 4 (C90)\/ETX Photo Adapter directly addresses the primary limitation of these popular Maksutov-Cassegrain telescopes: their small accessory port. This single component replaces the standard visual back, establishing a full 2-inch aperture and a rigid, flex-free connection for modern diagonals, wide-field eyepieces, and larger camera systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUnlock 2\" Diagonals and Eyepieces on Your C90\/ETX\u003c\/h3\u003e\n\u003cp\u003eWhile Celestron C90, NexStar 4, and Meade ETX telescopes are known for their sharp, high-contrast optics, their potential is often limited by a 1.25\" visual back. This adapter opens up your compact telescope to the world of 2\" accessories, allowing you to achieve significantly wider true fields of view. By pairing your scope with a 2\" diagonal and low-power 2\" eyepieces, you can frame large targets like the Andromeda Galaxy (M31) or the Pleiades (M45) in a single view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA Rigid 2\" Foundation for Astrophotography\u003c\/h3\u003e\n\u003cp\u003eAs a dedicated photo adapter, this component creates a solid, secure link between your telescope and your imaging equipment. Stacking multiple smaller adapters to connect a camera introduces potential flexure and tilt, which can ruin an exposure. The Baader 2\" adapter provides a single, robust connection point, ensuring your camera remains perfectly aligned with the telescope's optical axis throughout a long imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main benefit of using the Baader 2\" Adapter on my Celestron C90?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary benefit is upgrading your telescope from the restrictive 1.25\" accessory format to the much larger 2\" standard. This allows you to use 2\" diagonals and wide-field eyepieces, dramatically increasing the true field of view for observing large deep-sky objects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter let me use 2\" eyepieces with my Meade ETX telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This adapter is specifically designed to thread onto the rear cell of Meade ETX models (like the ETX-90\/105\/125), Celestron C90 spotting scopes, and NexStar 4SE telescopes, allowing you to use any standard 2\" eyepiece or accessory.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this Baader adapter improve astrophotography with a NexStar 4SE?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt provides a single, rigid connection point for your camera, eliminating the flexure and potential image tilt caused by stacking multiple smaller adapters. A solid connection is critical for sharp, round stars, especially during longer exposures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Baader 2\" Adapter cause vignetting with my camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter provides the largest possible clear aperture from the telescope's rear port. However, Maksutov-Cassegrain telescopes like the C90 and ETX have internal baffles that may still cause some vignetting (darkening of the corners) on cameras with very large sensors, such as full-frame DSLRs. This is a limitation of the telescope's optical design, not the adapter itself.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat do I need to attach this Baader adapter to my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo extra parts are needed. The adapter is designed to unthread your telescope's original 1.25\" visual back and thread directly onto the male threads on the rear cell of the optical tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter better than using a standard SCT to 2\" adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, because the Celestron C90, NexStar 4, and Meade ETX telescopes do \u003cstrong\u003enot\u003c\/strong\u003e use the standard Schmidt-Cassegrain (SCT) thread. They have a smaller, proprietary rear port thread. This Baader adapter is purpose-built to match that specific thread, making it the correct and only direct way to adapt these scopes to the 2\" format.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.08\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eAstro T-2, Baader Planetarium, Celestron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e56\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eFilter holder, Reducing Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e9-24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75 (T-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75 (T-2), 2\"\/SCT Thread (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM28.5, 1.4\" Thread (35.5 mm), M42 x 0.75 (T-2), 2\"\/SCT Thread (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Astro_T-2_System_Connections_Overview.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Astro T-2 System Connections Overview\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Astro_T-2_System_Parts_List.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Astro T-2 System Parts List\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967342866717,"sku":"BAA-2958500","price":79.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Adapter-2-inch-NexStar-4-C90-ETX-1__29520.1597110833.1280.1280.jpg?v=1684340804"},{"product_id":"baader-expanding-ring-2-nexstar-4-c90-etx","title":"Baader Expanding Ring - 2\" NexStar 4 (C90)\/ETX","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConverts the rear port thread on Celestron C90, NexStar 4, and Meade ETX telescopes\u003c\/li\u003e\n\u003cli\u003eAdapts the proprietary thread to a standard 2\" Schmidt-Cassegrain (SC) male thread\u003c\/li\u003e\n\u003cli\u003eEnables the use of common 2\" SCT diagonals, visual backs, and reducers\u003c\/li\u003e\n\u003cli\u003eProvides a secure, rigid connection for heavier accessories\u003c\/li\u003e\n\u003cli\u003ePrecision-machined for a no-flexure fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Expanding Ring - 2\" NexStar 4 (C90)\/ETX\u003c\/h2\u003e\n\u003cp\u003eThe Baader Expanding Ring for NexStar 4 (C90)\/ETX telescopes converts the small, proprietary rear cell thread on these popular Maksutov-Cassegrains to the universal 2\" Schmidt-Cassegrain (SC) standard. This single, precision-machined component unlocks compatibility with the vast ecosystem of 2\" diagonals, visual backs, and photographic accessories designed for larger SCTs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUnlock 2\" SC Accessories on Your C90, ETX, or NexStar 4\u003c\/h3\u003e\n\u003cp\u003eThe main limitation of compact Maksutovs like the Celestron C90, NexStar 4, and Meade ETX is their non-standard rear port, which restricts you to 1.25\" accessories. This expanding ring directly addresses that by threading onto your telescope's rear cell and presenting a standard male 2\" SC thread, making your compact scope compatible with a much wider range of equipment.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse 2\" Diagonals:\u003c\/strong\u003e Gain the ability to use high-quality 2\" diagonals and wide-field 2\" eyepieces for breathtaking low-power views.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAttach SCT Reducers:\u003c\/strong\u003e Connect standard f\/6.3 SCT reducer\/correctors to widen your field of view for imaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount SCT-Threaded Cameras:\u003c\/strong\u003e Directly attach imaging cameras and filter wheels that use the 2\" SC thread standard for a secure connection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFrom Proprietary Threads to a 2\" Rigid Connection\u003c\/h3\u003e\n\u003cp\u003eUnlike simple 1.25\" visual backs that often rely on a single thumbscrew and can introduce tilt or flexure, this Baader ring provides a solid, threaded connection. By converting to the 2\" SC thread, you create a rigid metal-on-metal foundation for your entire imaging or visual train.\u003c\/p\u003e\n\u003cp\u003eThis is critical when using heavier accessories like a 2\" dielectric diagonal paired with a large eyepiece, or an astrophotography camera. The secure threaded interface ensures perfect alignment and eliminates the accessory sag that can compromise image sharpness and collimation, giving you a connection as robust as those found on much larger telescopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the Baader Expanding Ring for NexStar 4\/C90\/ETX do?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter converts the proprietary rear thread on compact Celestron NexStar 4, C90, and Meade ETX telescopes to the industry-standard \u003cstrong\u003e2\" Schmidt-Cassegrain (SC) thread\u003c\/strong\u003e. This allows you to attach a wide variety of accessories that are normally only compatible with larger SCT telescopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use a 2\" diagonal on my Celestron C90 with this Baader ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is its primary purpose. Once this ring is threaded onto your C90's rear port, you can then attach any standard 2\" SCT diagonal or visual back. This lets you use 2\" eyepieces for a significantly wider true field of view than is possible with 1.25\" accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Baader Expanding Ring work on a Meade ETX-90?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is designed to be fully compatible with the rear photo port thread on Meade ETX models like the ETX-90 and ETX-125. It provides the same conversion to the standard 2\" SC thread, opening up many more accessory options for your ETX.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is a threaded 2\" connection better than my stock 1.25\" visual back?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA threaded connection is far more rigid and secure. Stock 1.25\" backs often use a simple slip-fit with a thumbscrew, which can allow heavy eyepieces or cameras to sag or tilt. This Baader ring creates a solid, all-metal threaded connection that \u003cstrong\u003eprevents flexure\u003c\/strong\u003e, ensuring your optical train remains perfectly aligned.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this the same part included in the Baader 2958500 ClickLock set?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This expanding ring is the core component of the Baader #2958500 ClickLock visual back set for these telescopes. If you already own that set, you have this adapter. This individual listing is for users who want to build a custom setup or need a replacement part.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need other adapters to use 2\" accessories with this Baader ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis ring provides the necessary male 2\" SC thread on your telescope. You will still need an accessory with a corresponding female 2\" SC thread to attach to it, such as a 2\" SCT visual back, a 2\" SCT diagonal, or an SCT-threaded focal reducer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.05\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eAstro T-2, Baader Planetarium, Celestron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e56\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eFilter holder, Reducing Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsage\u003c\/td\u003e\n\u003ctd\u003echanges NexStar 4 outer thread in the standard 2\" SC-thread of all SC-telescopes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75 (T-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003e2\"\/SCT Thread (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM28.5, 1.4\" Thread (35.5 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Astro_T-2_System_Connections_Overview.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Astro T-2 System Connections Overview\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Astro_T-2_System_Parts_List.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Astro T-2 System Parts List\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967342932253,"sku":"BAA-2958500A","price":49.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Expanding-Ring-2-inch-NexStar-4-C90-ETX-1__31641.1597110833.1280.1280.jpg?v=1684340808"},{"product_id":"baader-pentax-adapter-m84-m68-zeiss","title":"Baader Pentax Adapter M84\/M68 (Zeiss)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts Pentax M84 female threads to the Baader M68 male thread system\u003c\/li\u003e\n\u003cli\u003eCreates a rigid, non-flexing connection for heavy imaging payloads\u003c\/li\u003e\n\u003cli\u003eEliminates tilt and sag common with slip-fit eyepiece holders\u003c\/li\u003e\n\u003cli\u003ePrecision-machined for a secure, stable fit\u003c\/li\u003e\n\u003cli\u003eEnables integration of Pentax telescopes into the professional M68 ecosystem\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Pentax Adapter M84\/M68 (Zeiss)\u003c\/h2\u003e\n\u003cp\u003eThe Baader Pentax Adapter M84\/M68 (Zeiss) directly converts the Pentax M84 thread standard to the robust M68 (Zeiss) system. This single component is engineered to eliminate the instability inherent in standard 2-inch slip-fit adapters, a critical upgrade for any serious astrophotography or spectroscopy application.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePentax M84 to Zeiss M68: A Zero-Flexure Foundation\u003c\/h3\u003e\n\u003cp\u003eFor professional-level imaging, any amount of mechanical flexure between the telescope and camera can render results unusable. This adapter replaces weaker press-fit or single-screw connections with a direct M84 to M68 threaded coupling, ensuring your entire imaging train remains perfectly collinear, even under the load of heavy cameras, filter wheels, or telecentric systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBuilding a Rigid Imaging Train with the M68 Standard\u003c\/h3\u003e\n\u003cp\u003eThis adapter is your entry point into the comprehensive Baader M68 system, the same standard used on large Zeiss telescopes. By converting your Pentax focuser to this generously sized thread, you can build a completely modular and exceptionally sturdy optical train using components like the Baader M68 Tele-Compendium, extension tubes, and other accessories without fear of tilt or sag.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the primary purpose of the Baader Pentax M84\/M68 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts sole purpose is to provide a secure, rigid, threaded connection between a telescope or focuser with a female \u003cstrong\u003ePentax M84 thread\u003c\/strong\u003e and the extensive range of accessories that use the male \u003cstrong\u003eBaader M68 (Zeiss) thread\u003c\/strong\u003e. This creates a flexure-free imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy should I use this M84\/M68 adapter instead of a standard 2\" adapter on my Pentax telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA standard 2\" slip-fit adapter relies on a simple compression ring or set screw, which can allow heavy equipment to tilt or sag, ruining optical alignment. The \u003cstrong\u003eBaader M84\/M68 adapter\u003c\/strong\u003e threads directly into place, creating a solid metal-on-metal connection that physically cannot tilt, ensuring perfect alignment for critical imaging and spectroscopy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of equipment benefits most from the Baader Pentax M84\/M68 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is essential for any setup involving heavy or long accessories. This includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLarge format CCD or CMOS astronomy cameras\u003c\/li\u003e\n\u003cli\u003eHeavy filter wheels and off-axis guiders\u003c\/li\u003e\n\u003cli\u003eTelecentric systems for solar observation\u003c\/li\u003e\n\u003cli\u003eSpectrographs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this Baader adapter compatible with systems other than the Baader M68 Tele-Compendium?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. While it is designed as a core component of the Baader M68 ecosystem, this adapter will connect any female M84 port to any male M68 accessory, regardless of the manufacturer, as long as they adhere to the Zeiss M68 thread standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Baader Pentax M84\/M68 adapter help with imaging heavy payloads like a large format camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBy creating a wide-diameter, fully-threaded connection, the adapter distributes the weight of a heavy camera evenly and securely. This prevents the \"lever effect\" where long or heavy payloads can cause the focuser drawtube or adapter to sag, which would shift the focal plane and lead to distorted stars at the edge of the field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the significance of the M68 (Zeiss) thread standard used by this Baader adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eM68 thread\u003c\/strong\u003e was established by Zeiss for their professional-grade instruments as a robust connection standard that avoids the vignetting and flexure associated with smaller threads like T-2 (M42). Baader Planetarium adopted it for their high-end modular components, making it a modern standard for serious amateur and professional astronomers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.92\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium, Pentax, Zeiss\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e63\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e94\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eReducing Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eM68 x 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM84 x 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapters Family\u003c\/td\u003e\n\u003ctd\u003eM68 System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967342997789,"sku":"BAA-2458240","price":117.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Pentax-Adapter-M84-M68-Zeiss-1__38381.1597110834.1280.1280.jpg?v=1684340812"},{"product_id":"baader-adapter-m36-4m-t-2m","title":"Baader Adapter - M36.4(M)\/T-2(M)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Vixen M36.4 Female Threads to T-2 Female Threads\u003c\/li\u003e\n\u003cli\u003eSide 1: Male M36.4 x 1.0 Thread (Vixen Standard)\u003c\/li\u003e\n\u003cli\u003eSide 2: Male T-2 (M42 x 0.75) Thread\u003c\/li\u003e\n\u003cli\u003eEnables Use of T-2 Accessories on Vixen Telescopes\u003c\/li\u003e\n\u003cli\u003ePrecision-Machined Aluminum Construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eBaader Adapter - M36.4(M)\/T-2(M)\u003c\/h2\u003e\n      \u003cp\u003eThe Baader M36.4 to T-2 Adapter provides the essential mechanical link between Vixen's proprietary M36.4 focuser thread and the universal T-2 (M42x0.75) standard used by most astrophotography accessories. This component allows you to securely attach your T-threaded cameras, filter wheels, and off-axis guiders directly to a Vixen telescope, opening up a world of imaging possibilities. It is a fundamental part for integrating modern cameras with Vixen's well-regarded optics.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eBridging Vixen Focusers to the Universal T-2 System\u003c\/h3\u003e\n      \u003cp\u003eMany Vixen telescopes, particularly older models and spotting scopes, feature a female M36.4x1.0 thread on their focusers. This Baader adapter converts that specific thread to a male T-2 thread, solving a common compatibility challenge for imagers. By making this connection, you can now build a rigid, threaded imaging train using components from the vast Baader T-2 System or any other manufacturer that adheres to the T-2 standard. This single piece replaces guesswork with a secure, reliable connection for your imaging equipment.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the primary use for the Baader M36.4 to T-2 Adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter is designed to connect a telescope or focuser that has a \u003cstrong\u003efemale M36.4 thread\u003c\/strong\u003e (commonly found on Vixen equipment) to an accessory that has a \u003cstrong\u003efemale T-2 (M42x0.75) thread\u003c\/strong\u003e. Its primary role is to allow modern T-threaded cameras and accessories to be used on these specific Vixen telescopes.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I know if my Vixen telescope needs this Baader adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYou need this adapter if your Vixen telescope's focuser drawtube has internal (female) M36.4x1.0 threads where you would normally attach an eyepiece holder or camera adapter. Check your telescope's manual or measure the thread diameter on the focuser. If it is approximately 36.4mm, this adapter is likely the correct part to connect T-2 accessories.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I attach my ZWO ASI camera to my Vixen R200SS focuser with this adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis depends on the specific focuser version on your Vixen R200SS. While many Vixen focusers use the M36.4 thread, larger models may use different standards like M60. You must first confirm that your focuser's output thread is indeed female M36.4. If it is, this adapter will provide the male T-2 thread needed to start building a connection to your ZWO camera.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this Baader adapter add significant length to my optical train?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAs a low-profile adapter, it is designed to add minimal optical path length. However, since every millimeter matters for achieving focus, especially with reducers or correctors, you should account for its thickness when calculating your back focus. Unfortunately, without official specifications, the exact length cannot be stated.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Baader M36.4 \/ T-2 adapter compatible with non-Baader accessories?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, absolutely. The \u003cstrong\u003eT-2 (M42x0.75) thread is an industry standard\u003c\/strong\u003e used by countless astronomy brands worldwide. This adapter will allow you to connect any accessory with a standard female T-2 thread to your Vixen-threaded focuser.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between the M36.4 thread and a T-2 thread?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThey are two different mechanical standards.\n    \u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eM36.4 Thread:\u003c\/strong\u003e A metric thread with a 36.4mm diameter and a 1.0mm thread pitch, primarily used by Vixen.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eT-2 Thread:\u003c\/strong\u003e A metric thread with a 42mm diameter and a 0.75mm thread pitch. It is the most common standard for attaching cameras and imaging accessories in astronomy.\u003c\/li\u003e\n    \u003c\/ul\u003e\n    The two are not compatible without an adapter like this one.\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Side Thread\u003c\/td\u003e\n\u003ctd\u003eMale M36.4 x 1.0 (Vixen Standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessory Side Thread\u003c\/td\u003e\n\u003ctd\u003eMale T-2 (M42 x 0.75)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e2458018\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e32.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eExpanding Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eT-2 Part #\u003c\/td\u003e\n\u003ctd\u003e03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM36.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eBaader Adapter - M36.4(M)\/T-2(M)\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Astro_T-2_System_Connections_Overview.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Astro T-2 System Connections Overview\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Astro_T-2_System_Parts_List.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Astro T-2 System Parts List\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967343161629,"sku":"BAA-1508039","price":33.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Adapter-M36-4-M-T-2-M-1__30425.1597110838.1280.1280.jpg?v=1684341105"},{"product_id":"baader-nosepiece-extension-1-25","title":"Baader Nosepiece Extension - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdds 18mm of extension length\u003c\/li\u003e\n\u003cli\u003eStandard 1.25\" outer diameter\u003c\/li\u003e\n\u003cli\u003eThreads into 1.25\" eyepiece filter threads\u003c\/li\u003e\n\u003cli\u003eFeatures male and female 1.25\" filter threads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eBaader Nosepiece Extension - 1.25\"\u003c\/h2\u003e\n      \u003cp\u003eThe Baader Nosepiece Extension adds a critical 18mm of length to any standard 1.25\" eyepiece, solving common focus travel shortages. This simple adapter threads directly into your eyepiece's 1.25\" filter threads, providing the extra outward travel required to achieve a sharp image with off-axis guiders, flip mirrors, or other accessories that alter the focal plane.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eAchieve Critical Focus Travel with an 18mm Extension\u003c\/h3\u003e\n      \u003cp\u003eOptical trains that include components like off-axis guiders or flip-mirror diagonals often shift the eyepiece's required focus point beyond the range of the telescope's focuser. The Baader Nosepiece Extension provides a straightforward mechanical solution, adding 18mm of length to push the eyepiece out and bring it into the focuser's range of travel, eliminating the need for more complex or costly adapters.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n    \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eUniversal 1.25\" Filter Thread Design\u003c\/h3\u003e\n      \u003cp\u003eEngineered for maximum compatibility, this extension features standard 1.25\" filter threads (M28.5 x 0.6) on both ends. The male thread screws into the bottom of your eyepiece barrel, while the female thread on the opposing end allows you to attach your 1.25\" filters as you normally would. This pass-through design ensures you don't have to sacrifice filtration for focus.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhen would I need the Baader 1.25\" Nosepiece Extension?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYou need this extension when you cannot achieve focus because your eyepiece needs to be positioned further away from the telescope. This is a common issue when adding accessories like \u003cstrong\u003eoff-axis guiders\u003c\/strong\u003e, \u003cstrong\u003eflip mirrors\u003c\/strong\u003e, or certain \u003cstrong\u003eBarlow lenses\u003c\/strong\u003e that extend the light path.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Baader Nosepiece Extension attach to my eyepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIt attaches directly to your eyepiece. Simply screw the male-threaded end of the 18mm extension into the female \u003cstrong\u003e1.25\" filter threads\u003c\/strong\u003e found on the bottom of almost every standard 1.25\" eyepiece barrel.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I still use my 1.25\" filters with the Baader Extension in place?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. The extension is designed with female 1.25\" filter threads on the telescope side. This allows you to screw any standard 1.25\" filter directly onto the end of the extension, placing it in the light path just as it would be if threaded into the eyepiece itself.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eMy off-axis guider pushes my eyepiece too far out to focus in my SCT. Will the 18mm Baader Extension help?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, this is the exact scenario the Baader 18mm Extension is designed for. By adding 18mm of length, it compensates for the extra distance introduced by the off-axis guider's prism, allowing you to rack your SCT's focuser inward to a point where a sharp image can be achieved.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Baader 1.25\" Extension introduce any vignetting?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eFor most eyepieces, no. The internal diameter is designed to be as wide as possible. However, with very long focal length 1.25\" eyepieces (like a 40mm Plössl) used in very fast telescopes (f\/4 or below), any extension can potentially cause minor vignetting at the edge of the field of view.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI can't reach focus with my new flip mirror and a Tele Vue Plössl. Is the Baader 18mm extension the right solution?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, it is very likely the correct solution. A flip mirror adds significant length to the optical path, which requires the eyepiece to be moved further out. The Baader 18mm extension provides that needed distance, allowing the Tele Vue Plössl to reach the new focal plane.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eDT-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExtension Length\u003c\/td\u003e\n\u003ctd\u003e18mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Diameter\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThreads\u003c\/td\u003e\n\u003ctd\u003e1.25\" Filter Thread (M28.5 x 0.6) Male \u0026amp; Female\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e31.75 (1¼\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eExtension, Filter holder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e18.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eT-2 Part #\u003c\/td\u003e\n\u003ctd\u003e05\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eM28.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eø 1¼\" (31.75 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM28.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eø 1¼\" (31.75 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Astro_T-2_System_Connections_Overview.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Astro T-2 System Connections Overview\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Astro_T-2_System_Parts_List.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Astro T-2 System Parts List\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967343325469,"sku":"BAA-1905130","price":28.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Nosepiece-Extension-1-25-inch-1__77718.1597110839.1280.1280.jpg?v=1684341110"},{"product_id":"baader-clicklock-eyepiece-clamp-1-25-t-2","title":"Baader ClickLock Eyepiece Clamp - 1.25\"\/T-2","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eSecurely Clamps 1.25\" Eyepieces and Accessories\u003c\/li\u003e\n\u003cli\u003eReplaces Thumbscrews with a Simple Twist-Lock Action\u003c\/li\u003e\n\u003cli\u003eT-2 Female Thread (Telescope Side) for System Integration\u003c\/li\u003e\n\u003cli\u003eT-2 Male Thread (Eyepiece Side) for Projection Setups\u003c\/li\u003e\n\u003cli\u003eIntegrated Fine-Focusing Helical Mechanism\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader ClickLock Eyepiece Clamp - 1.25\"\/T-2\u003c\/h2\u003e\n\u003cp\u003eThe Baader ClickLock Eyepiece Clamp replaces insecure thumbscrews with a professional-grade clamping mechanism for your 1.25-inch accessories. This T-2 compatible clamp uses a cam-lever system, inspired by CNC machine tool holders, to secure any 1.25-inch eyepiece or camera with a gentle twist of its outer ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe ClickLock Mechanism: Secure Clamping Without Screws\u003c\/h3\u003e\n\u003cp\u003eForget fumbling with tiny screws in the dark, especially with gloves on. The ClickLock system grabs your 1.25-inch accessories with a short, gentle twist, applying even, concentric pressure. This three-point grip centers the accessory perfectly on the optical axis, eliminates tilting, and prevents the scratches and gouges that single thumbscrews leave on your eyepiece barrels.\u003c\/p\u003e\n\u003cp\u003eThe internal leverage multiplies your gripping force, ensuring even heavy CCD cameras or eyepiece stacks are held rigidly without requiring excessive torque. The result is a connection that is stable, repeatable, and safe for your most valued equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eT-2 System Integration for Imagers and Visual Observers\u003c\/h3\u003e\n\u003cp\u003eThis clamp is a core component of the Baader T-2 Astro-System. The telescope side features a standard T-2 (M42x0.75) female thread, allowing you to connect it directly to T-2 diagonals, extension tubes, and other accessories for a rigid, threaded connection that bypasses traditional slip-fit focusers.\u003c\/p\u003e\n\u003cp\u003eUnscrewing the ClickLock's top ring reveals a male T-2 thread on the eyepiece side. This transforms the clamp into an eyepiece projection adapter, enabling you to securely mount T-rings and DSLR or mirrorless cameras for high-magnification planetary and lunar imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIntegrated Helical Focuser: Precision Adjustments Without Mirror Shift\u003c\/h3\u003e\n\u003cp\u003eA key feature of the ClickLock T-2 clamp is its integrated fine-focusing mechanism. The body of the clamp acts as a micro-focuser with a fine-pitch thread, allowing you to make delicate focus adjustments right at the eyepiece. This is a critical upgrade for Schmidt-Cassegrain (SCT) owners, as it allows you to bypass the telescope's primary mirror focuser for final tweaks, completely eliminating mirror shift and image rock.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Baader ClickLock 1.25\"\/T-2 clamp work without screws?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Baader ClickLock clamp uses an internal cam and lever system. When you twist the outer ring, three hardened steel pins move inward to grip the eyepiece barrel concentrically. This provides a secure, self-centering grip that is much more stable than a single thumbscrew and will not mar your accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Baader ClickLock T-2 clamp securely hold a heavy camera for astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The mechanical design multiplies the force you apply, creating a very strong grip with only a light twist. It is engineered to securely hold heavy 1.25-inch format CCD or CMOS cameras and accessory stacks without slipping or tilting, providing a much more rigid connection than standard clamps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Baader ClickLock 1.25\"\/T-2 clamp to fix mirror shift on my Celestron 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. This is one of its primary applications. After achieving rough focus with your SCT's main knob, you can use the \u003cstrong\u003eintegrated helical focusing mechanism\u003c\/strong\u003e on the ClickLock clamp for fine, final adjustments. This moves the eyepiece, not the primary mirror, eliminating mirror shift for critical planetary imaging and high-power visual observation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the thread types on the Baader ClickLock T-2 clamp?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Baader ClickLock T-2 clamp has two primary threads:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTelescope Side:\u003c\/strong\u003e A female T-2 (M42x0.75) thread for connecting to T-2 diagonals, focusers, or other system components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEyepiece Side:\u003c\/strong\u003e A male T-2 (M42x0.75) thread is hidden underneath the twist-lock ring, allowing you to use it for eyepiece projection with T-rings and cameras.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the fine-focus feature on the Baader ClickLock clamp help when imaging Jupiter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen imaging Jupiter at high magnification, achieving perfect focus is critical and often compromised by mirror shift. The Baader ClickLock allows you to lock the primary mirror and then use the clamp's own fine-focusing thread to nail the focus without causing the planet to jump around in the field of view. This stability is essential for capturing sharp, detailed images.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Baader ClickLock clamp for eyepiece projection photography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. By unscrewing the outer locking ring, you expose a male T-2 thread. You can place a 1.25\" eyepiece inside the clamp, and then attach a T-2 extension tube and a camera-specific T-ring to this thread. This creates a secure, variable-projection system for high-magnification imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.07\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping System\u003c\/td\u003e\n\u003ctd\u003eClickLock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e31.75 (1¼\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e49\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eEyepiece Clamp, Variable Focusing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e32 - 38\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eT-2 Part #\u003c\/td\u003e\n\u003ctd\u003e08\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eø 1¼\" (31.75 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75 (T-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75 (T-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Astro_T-2_System_Connections_Overview.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Astro T-2 System Connections Overview\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Star_Diagonals_T-2_and_2in_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Star Diagonals T-2 and 2in Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Digiscoping_Camera_Adaptations_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Digiscoping Camera Adaptations Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_ClickLock_Eyepiece_Clamp_1.25in_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium ClickLock Eyepiece Clamp 1.25in Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_ClickLock_Clamps_Product_Information.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium ClickLock Clamps Product Information\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Astro_T-2_System_Parts_List.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Astro T-2 System Parts List\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967343554845,"sku":"BAA-2458100","price":127.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader-ClickLock-Eyepiece-Clamp-1-25-inch-T-2-1__45713.1597110852.1280.1280.jpg?v=1684341181"},{"product_id":"baader-adapter-1-25-0-965","title":"Baader Adapter - 1.25\"\/0.965\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts 1.25\" (1¼\") focusers to accept 0.965\" (24.5mm) eyepieces\u003c\/li\u003e\n\u003cli\u003eBrings classic and vintage eyepieces into use with modern telescopes\u003c\/li\u003e\n\u003cli\u003ePrecision-machined for a secure, concentric fit\u003c\/li\u003e\n\u003cli\u003eMaintains optical alignment between eyepiece and telescope\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Adapter - 1.25\"\/0.965\"\u003c\/h2\u003e\n\u003cp\u003eThe Baader 1.25\" to 0.965\" Adapter allows you to use classic 24.5mm (0.965\") eyepieces in any standard 1.25\" (1¼\") focuser or diagonal. This single component bridges the gap between vintage optical standards and modern equipment, ensuring your treasured older eyepieces don't have to be left in a case.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBridging Generations: Use 0.965\" Eyepieces in Modern 1.25\" Focusers\u003c\/h3\u003e\n\u003cp\u003eMany excellent vintage telescopes and specialized eyepieces were built around the 0.965-inch format. This simple reducer from Baader Planetarium prevents that classic glass from sitting unused, securely holding the smaller barrel inside any modern 1.25\" drawtube or accessory.\u003c\/p\u003e\n\u003cp\u003eUnlike basic plastic adapters, this reducer is machined to provide a secure, non-marring fit for your 0.965\" eyepieces. This ensures they remain perfectly aligned with your telescope's optical axis, preserving the view quality they were designed to deliver.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the Baader 1.25\" to 0.965\" Adapter used for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Baader 1.25\"\/0.965\" Adapter is a mechanical reducer that lets you insert a smaller \u003cstrong\u003e0.965\" diameter eyepiece\u003c\/strong\u003e into a larger, modern \u003cstrong\u003e1.25\" focuser\u003c\/strong\u003e or diagonal. This is essential for using older or classic eyepieces with new telescopes that use the current 1.25\" standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Baader adapter introduce any optical issues?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The adapter is a purely mechanical component and contains no lenses or optical surfaces. It simply reduces the physical diameter of the barrel and will not affect the optical performance of your eyepiece or telescope, provided it is seated correctly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have old 0.965\" eyepieces from a vintage refractor. Can I use them in my new 8\" Dobsonian with this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this adapter is exactly what you need. It will allow you to physically fit those 0.965\" eyepieces into the 1.25\" focuser of your Dobsonian, letting you test them out on objects like the Moon or the bright planets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I be able to reach focus using the Baader 1.25\" to 0.965\" Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn most cases, yes. The adapter adds a minimal amount to the optical path length. While most telescopes have enough focuser travel to accommodate this, you should confirm you have some available \"in-travel\" on your focuser, particularly with fast Newtonian reflectors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Baader 1.25\" to 0.965\" Adapter secure the eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter itself is held securely in your 1.25\" focuser or diagonal using that component's existing thumbscrew or compression ring. The 0.965\" eyepiece then slides into the adapter for a snug fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter threaded for standard 1.25\" filters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis component is designed primarily as a size reducer. It is not specified to be threaded for filters. Filters would typically be attached to an accessory that is already native to the 1.25\" format, such as your diagonal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapter From\u003c\/td\u003e\n\u003ctd\u003e1.25\" (1¼\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapter To\u003c\/td\u003e\n\u003ctd\u003e0.965\" (24.5mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScrew Type\u003c\/td\u003e\n\u003ctd\u003eM3 clamping screw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eUNC, Baader Planetarium, Celestron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping System\u003c\/td\u003e\n\u003ctd\u003eScrew clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e33.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eNosepiece, Eyepiece Clamp, Reducing Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e6.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eT-2 Part #\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM28.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eø 1¼\" (31.75 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader 1.25\" \/ 0.965\" Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Astro_T-2_System_Connections_Overview.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Astro T-2 System Connections Overview\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Astro_T-2_System_Parts_List.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Astro T-2 System Parts List\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967343685917,"sku":"BAA-2408191","price":59.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Adapter-1-25-inch-0-965-inch-1__40387.1597110853.1280.1280.jpg?v=1684341206"},{"product_id":"baader-adapter-1-25-2-w-t-2-thread","title":"Baader Adapter - 1.25\"\/2\"\" w\/ T-2 Thread","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eReduces a 2\" focuser to accept 1.25\" accessories\u003c\/li\u003e\n\u003cli\u003eFeatures an external male T-2 thread for direct camera attachment\u003c\/li\u003e\n\u003cli\u003eNon-marring brass compression ring secures eyepieces without scratching\u003c\/li\u003e\n\u003cli\u003eSingle-piece machined aluminum body for rigidity and precise alignment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Adapter - 1.25\"\/2\" w\/ T-2 Thread\u003c\/h2\u003e\n\u003cp\u003eThe Baader Adapter - 1.25\"\/2\" w\/ T-2 Thread solves a common equipment problem by integrating a high-quality 2\" to 1.25\" visual reducer with a standard T-2 photographic thread. This single, precision-machined component allows you to switch seamlessly between using your favorite 1.25\" eyepieces and attaching a T-2 threaded astro-camera or DSLR T-ring to any 2\" focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 2-in-1 Adapter: 1.25\" Visual and T-2 Photographic Connection\u003c\/h3\u003e\n\u003cp\u003eThis adapter eliminates the need for stacking multiple components, which can introduce flexure and alignment issues into your imaging train. For visual observers, it functions as a premium 1.25\" eyepiece holder that drops into any 2\" diagonal or focuser. For imagers, the external male T-2 thread provides a direct, secure connection point for prime-focus astrophotography, creating the shortest possible optical path.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBeyond Simple Reduction: The Advantage of Baader's Non-Marring Design\u003c\/h3\u003e\n\u003cp\u003eUnlike basic adapters that use a simple thumbscrew to hold eyepieces, this Baader adapter incorporates a non-marring brass compression ring. When you tighten the lock screw, the internal ring gently and uniformly clamps down on the barrel of your 1.25\" accessory. This provides a more secure, perfectly centered grip that prevents scratches and gouges on your expensive eyepiece barrels—a common issue with standard set-screw designs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the Baader 1.25\"\/2\" Adapter to attach my DSLR camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo attach a DSLR, you will need a T-ring specific to your camera's brand and model (e.g., a Canon EOS T-ring). You simply thread the T-ring onto the external T-2 threads of the Baader adapter. The entire assembly then slides into your telescope's 2\" focuser like an eyepiece, allowing for prime-focus photography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Baader Adapter securely hold heavy 1.25\" eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The brass compression ring design provides a much more secure grip than a single thumbscrew. It makes full contact around the circumference of the eyepiece barrel, distributing the clamping force evenly and preventing heavy eyepieces from tilting or slipping.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of the T-2 thread on this Baader 1.25\"\/2\" Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe integrated T-2 (M42x0.75) thread is a universal standard in astrophotography. It allows you to connect a wide range of devices directly to your telescope's 2\" focuser, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDSLR cameras\u003c\/strong\u003e (with a corresponding T-ring)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDedicated CMOS\/CCD astronomy cameras\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOff-axis guiders and filter wheels\u003c\/strong\u003e with T-2 connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use filters with the Baader 1.25\"\/2\" Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this adapter is threaded on the bottom (telescope side) to accept standard 2\" (M48) astronomy filters. This allows you to use your 2\" nebula or light pollution filters with your 1.25\" eyepieces or a small-chip imaging camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter add significant length to my optical path when imaging the Moon with my 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed to be as low-profile as possible to minimize added back-focus. For an 8\" SCT imaging the Moon, reaching focus should not be an issue. Its primary function is to adapt the connection type, not to extend the focal path, making it a nearly universal fit for most reflector and catadioptric telescopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this Baader adapter better than the simple 1.25\" adapter that came with my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor most users, yes. The two main advantages of the Baader adapter are the \u003cstrong\u003enon-marring compression ring\u003c\/strong\u003e, which protects your eyepieces from damage, and the integrated \u003cstrong\u003eT-2 thread\u003c\/strong\u003e, which provides a versatile connection for astrophotography that stock adapters typically lack.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScrew Type\u003c\/td\u003e\n\u003ctd\u003e2x M4 clamping screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eAstro T-2, UNC, Baader Planetarium, Celestron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping System\u003c\/td\u003e\n\u003ctd\u003eScrew clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e31.75 (1¼\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e55\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eNosepiece, Eyepiece Clamp, Filter holder, Reducing Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eT-2 Part #\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eø 1¼\" (31.75 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75 (T-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75 (T-2), M43, M48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eø 2\" (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Astro_T-2_System_Connections_Overview.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Astro T-2 System Connections Overview\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Astro_T-2_System_Parts_List.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Astro T-2 System Parts List\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967344144669,"sku":"BAA-2408190","price":67.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Adapter-1-25-inch-2-inch-inch-with-T-2-Thread-1__48803.1597110856.1280.1280.jpg?v=1684340825"},{"product_id":"baader-pushfix-low-profile-adapter-1-25-2-for-steeltrack-nt-focusers","title":"Baader Pushfix Low Profile Adapter - 1.25\"\/2\" for Steeltrack NT Focusers","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eReduces 2\" focusers to accept 1.25\" accessories\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for Baader Steeltrack NT focusers\u003c\/li\u003e\n\u003cli\u003ePushfix quick-release mechanism with adjustable tension\u003c\/li\u003e\n\u003cli\u003eNon-marring brass compression ring protects eyepiece barrels\u003c\/li\u003e\n\u003cli\u003eMinimal profile design adds negligible optical length\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Pushfix Low Profile Adapter - 1.25\"\/2\" for Steeltrack NT Focusers\u003c\/h2\u003e\n\u003cp\u003eThe Baader Pushfix Low Profile Adapter converts a 2\" Steeltrack NT focuser to accept 1.25\" eyepieces and accessories, replacing standard thumbscrew designs with a more elegant and secure solution. Its innovative mechanism uses a non-marring brass compression ring and an adjustable quick-release grip to hold your 1.25\" optics firmly without adding significant optical length to your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Pushfix System: A 2\" to 1.25\" Reducer for Steeltrack NT Focusers\u003c\/h3\u003e\n\u003cp\u003eEngineered for a seamless fit, this adapter is the ideal companion for Baader's Steeltrack NT focusers. It eliminates the two most common frustrations with standard reducers: eyepiece barrel damage and fumbling with screws in the dark. The Pushfix system provides a consistent, secure grip that protects your equipment and streamlines your observing sessions.\u003c\/p\u003e\n\u003cp\u003eThe mechanism's tension is fully adjustable. By setting the countersunk Delrin grub screws, you can dial in the perfect amount of pressure on the internal brass ring. This creates a quick-release action, allowing you to insert and remove eyepieces with a gentle push or pull, while still holding them securely. For heavier loads or imaging setups, a side clamping screw is also included to fully lock the accessory in place.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteeltrack NT Integration:\u003c\/strong\u003e Designed for a flush, stable fit with Baader Steeltrack NT focusers, ensuring perfect alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass Compression Ring:\u003c\/strong\u003e Grips the eyepiece barrel evenly, preventing the scratches and gouges caused by the sharp point of a thumbscrew.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Quick-Release:\u003c\/strong\u003e Use the countersunk Delrin grub screws to set the ideal insertion and removal force for your eyepieces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Locking Screw:\u003c\/strong\u003e A side clamping screw provides the option to bypass the quick-release and rigidly lock an accessory, such as a guide camera, in place.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main advantage of the Baader Pushfix Adapter over a standard 2\" to 1.25\" reducer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Baader Pushfix Adapter has two key advantages. First, its \u003cstrong\u003einternal brass compression ring\u003c\/strong\u003e provides a firm, even grip that won't scratch or damage the barrels of your eyepieces. Second, its \u003cstrong\u003eadjustable quick-release mechanism\u003c\/strong\u003e allows you to swap 1.25\" eyepieces quickly and easily without fumbling with thumbscrews in the dark.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the \"quick-release\" feature of the Baader Pushfix Adapter work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter uses several countersunk Delrin grub screws to apply consistent pressure to the internal brass clamping ring. You can adjust these screws to set a specific tension, creating a \"push-fit\" that is firm enough to hold an eyepiece securely but still allows for easy one-handed removal and insertion.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Baader Pushfix Adapter compatible with focusers other than the Baader Steeltrack NT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed for a precise, low-profile fit with \u003cstrong\u003eBaader Steeltrack NT focusers\u003c\/strong\u003e. While it may fit other 2\" focusers, its dimensions are optimized for the Steeltrack NT series, and a perfect fit in other models is not guaranteed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI switch between a 1.25\" planetary eyepiece and a crosshair eyepiece frequently when imaging Jupiter with my Steeltrack focuser. How does the Baader Pushfix Adapter help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Pushfix quick-release system is ideal for this scenario. It lets you swap between your imaging eyepiece and centering eyepiece with one hand, without needing to loosen and retighten screws. This speeds up your workflow and helps maintain precise alignment on your target between changes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Baader Pushfix Adapter scratch the chrome barrels of my expensive eyepieces like my old reducer did?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The Pushfix Adapter is designed specifically to prevent this. Instead of a metal thumbscrew digging into one point on the barrel, it uses a soft \u003cstrong\u003ebrass compression ring\u003c\/strong\u003e that distributes clamping force evenly around the entire circumference of your eyepiece, preventing gouges and scratches.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I lock an accessory securely in the Baader Pushfix Adapter for imaging?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. While the Pushfix system is excellent for quick visual changes, the adapter also includes a traditional \u003cstrong\u003eside clamping screw\u003c\/strong\u003e. This screw can be tightened to fully lock the brass ring down, providing a rigid, permanent hold suitable for heavier accessories like an imaging camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScrew Type\u003c\/td\u003e\n\u003ctd\u003eM4 clamping screw and Delrin pressure screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eAstro T-2, UNC, Baader Planetarium, Celestron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping System\u003c\/td\u003e\n\u003ctd\u003eScrew clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e31.75 (1¼\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e54\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eNosepiece, Eyepiece Clamp, Filter holder, Reducing Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eT-2 Part #\u003c\/td\u003e\n\u003ctd\u003e15A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsage\u003c\/td\u003e\n\u003ctd\u003eSuitable for Newton focusers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eø 1¼\" (31.75 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75 (T-2), M48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eø 2\" (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Astro_T-2_System_Connections_Overview.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Astro T-2 System Connections Overview\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Astro_T-2_System_Parts_List.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Astro T-2 System Parts List\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_PushFix_Adapter_Applications_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium PushFix Adapter Applications Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967344177437,"sku":"BAA-2408151","price":76.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader-Pushfix-Low-Profile-Adapter-1-25-inch-2-inch-for-Steeltrack-NT-Focusers-1__15402.1597110858.1280.1280.jpg?v=1684340827"},{"product_id":"baader-clicklock-adapter-1-25-2","title":"Baader ClickLock Adapter - 1.25\"\/2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts 2\" focusers and diagonals to accept 1.25\" accessories\u003c\/li\u003e\n\u003cli\u003eClickLock cam-lever mechanism for secure, rapid clamping\u003c\/li\u003e\n\u003cli\u003eThumbscrew-free design prevents marring of eyepiece barrels\u003c\/li\u003e\n\u003cli\u003eMulti-point contact ensures perfect centering and prevents tilt\u003c\/li\u003e\n\u003cli\u003eEffortless operation, even when wearing gloves\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eBaader ClickLock Adapter - 1.25\"\/2\"\u003c\/h2\u003e\n      \u003cp\u003eThe Baader ClickLock 2\" to 1.25\" Adapter replaces insecure and damaging thumbscrews with a robust, cam-lever locking system inspired by industrial CNC machinery. This mechanism securely grips any 1.25\" eyepiece or accessory in your 2\" focuser with a gentle twist of the outer ring, providing a perfectly centered, non-marring grip that eliminates accessory tilt and preserves the finish on your eyepiece barrels.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eThe ClickLock System: Secure Clamping without Thumbscrews\u003c\/h3\u003e\n      \u003cp\u003eForget fumbling with tiny thumbscrews in the dark. The ClickLock mechanism requires just a light, 20-degree twist of the rubberized collar to lock an eyepiece with immense holding force. This simple action is easily performed even with thick gloves on, making it ideal for cold-night observing sessions.\u003c\/p\u003e\n      \u003cp\u003eUnlike a single-point set screw that pushes an accessory off-center and can permanently dent its barrel, the ClickLock system applies even pressure. Your eyepieces and cameras are held securely, perfectly aligned, and remain in pristine condition.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eCNC-Inspired Engineering for Perfect Centering\u003c\/h3\u003e\n      \u003cp\u003eThe internal design of the ClickLock is based on the tool holders used in modern CNC milling centers, where absolute centering and stability are non-negotiable. A clever use of leverage multiplies your torque, so no brute force is needed to achieve a rock-solid connection that holds heavy accessories without slippage.\u003c\/p\u003e\n      \u003cp\u003eThis massive, precision-machined adapter utilizes a multi-point contact system that grips the eyepiece barrel from several sides simultaneously. This distributed pressure is the key to its ability to prevent any tilting movement, ensuring your optical train remains perfectly collinear for sharp, focused images.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n    \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eBaader ClickLock vs. Standard Thumbscrew Reducers: A Worthwhile Upgrade\u003c\/h3\u003e\n      \u003cp\u003eWhile a basic thumbscrew reducer is inexpensive, its design introduces compromises that the Baader ClickLock was engineered to solve. The upgrade is an investment in consistency, security, and the preservation of your equipment.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCentering and Tilt:\u003c\/strong\u003e A standard reducer pushes an accessory to one side, inducing tilt that can harm image sharpness. The ClickLock's concentric grip guarantees perfect centering every time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eAccessory Damage:\u003c\/strong\u003e Thumbscrews dig into soft aluminum barrels, leaving permanent marks and potentially creating metal shavings. The ClickLock's firm but gentle grip leaves no trace.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHolding Power:\u003c\/strong\u003e Heavy eyepieces or camera setups can cause a single thumbscrew to slip. The ClickLock's distributed clamping force provides a far more secure hold, giving you peace of mind.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Baader ClickLock adapter prevent my eyepiece from tilting?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe \u003cstrong\u003eBaader ClickLock adapter\u003c\/strong\u003e uses an internal cam system that tightens a collar, gripping the eyepiece barrel from multiple sides at once. Unlike a standard thumbscrew that pushes the accessory off-center, this concentric, distributed pressure ensures the eyepiece is held perfectly parallel to the optical axis, eliminating tilt.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Baader ClickLock 2\"\/1.25\" adapter scratch my eyepiece barrels?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo. The primary design goal of the \u003cstrong\u003eBaader ClickLock adapter\u003c\/strong\u003e is to provide a secure grip without damaging your equipment. The clamping surfaces apply firm, even pressure without the sharp point of a set screw, leaving the finish on your eyepiece and accessory barrels completely unmarked.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Baader ClickLock adapter easy to use with gloves on?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, it's exceptionally easy. The \u003cstrong\u003eBaader ClickLock adapter\u003c\/strong\u003e features a wide, rubberized collar that provides excellent grip. A small twist is all that's needed to lock or unlock an accessory, an action that is far simpler to perform with gloves than trying to turn a small, cold metal thumbscrew.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main advantage of the Baader ClickLock system over a standard reducer?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe main advantage is \u003cstrong\u003erepeatable, perfect centering.\u003c\/strong\u003e While a standard reducer can introduce tilt and mar eyepiece barrels, the \u003cstrong\u003eBaader ClickLock adapter\u003c\/strong\u003e provides a secure, non-damaging, and perfectly aligned connection every time you insert an accessory. This is especially critical for imaging applications.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eFor planetary imaging with a Barlow and a 1.25\" camera in my SCT's 2\" diagonal, why is the Baader ClickLock adapter a good choice?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis is an ideal use case. Maintaining perfect optical alignment is critical for high-magnification planetary imaging. The \u003cstrong\u003eBaader ClickLock adapter\u003c\/strong\u003e ensures that your entire imaging train—camera, Barlow, and adapter—is held rigidly and without any tilt. This prevents image degradation and ensures you are capturing the sharpest possible data from your telescope.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhen using heavy 1.25\" eyepieces like a Tele Vue Nagler in my 2\" focuser, will the Baader ClickLock adapter hold it securely?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. The \u003cstrong\u003eBaader ClickLock adapter\u003c\/strong\u003e was designed for this exact scenario. Its robust, CNC-inspired mechanism provides significantly more holding power than a single thumbscrew. You can be confident that even heavy 1.25\" eyepieces or a camera and filter wheel will be held securely without any risk of slipping.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium, Celestron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping System\u003c\/td\u003e\n\u003ctd\u003eClickLock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eNosepiece, Eyepiece Clamp, Reducing Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e9.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eT-2 Part #\u003c\/td\u003e\n\u003ctd\u003e15B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsage\u003c\/td\u003e\n\u003ctd\u003efast clamping of every 1¼\" accessory, use also as filter holder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eø 1¼\" (31.75 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75 (T-2), M48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eø 2\" (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Star_Diagonals_T-2_and_2in_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Star Diagonals T-2 and 2in Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_ClickLock_Clamps_Product_Information.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium ClickLock Clamps Product Information\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_2in_ClickLock_System_Overview.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium 2in ClickLock System Overview\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_2in_to_1.25in_ClickLock_Reducer_Features.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium 2in to 1.25in ClickLock Reducer Features\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967344242973,"sku":"BAA-2956214","price":121.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader-ClickLock-Adapter-1-25-inch-2-inch-1__32644.1597110860.1280.1280.jpg?v=1684340841"},{"product_id":"baader-deluxe-clamping-eyepiece-holder-2","title":"Baader Deluxe Clamping Eyepiece Holder - 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eSecurely holds all 2\" eyepieces and accessories\u003c\/li\u003e\n\u003cli\u003eNon-marring clamping mechanism prevents scratches on barrels\u003c\/li\u003e\n\u003cli\u003eEnsures precise and repeatable centering of optical elements\u003c\/li\u003e\n\u003cli\u003eIdeal for heavy eyepieces, cameras, and binoviewers\u003c\/li\u003e\n\u003cli\u003eRobust Baader Planetarium construction for long-term reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Deluxe Clamping Eyepiece Holder - 2\"\u003c\/h2\u003e\n\u003cp\u003eThe Baader Deluxe Clamping Eyepiece Holder for 2\" accessories replaces the common thumbscrew with a superior clamping system that protects your equipment and improves optical alignment. By distributing pressure evenly around the barrel, it provides a more secure, non-marring grip that is essential for heavy eyepieces, diagonals, and imaging cameras. This design eliminates the risk of scratches and ensures your accessories are perfectly centered in the optical axis every time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eClamping Mechanism: A Non-Marring Alternative to Thumbscrews\u003c\/h3\u003e\n\u003cp\u003eStandard eyepiece holders rely on one or two thumbscrews that concentrate force on small points, often scratching and denting the barrels of your expensive eyepieces. The Baader Deluxe Clamping Holder uses a compression ring mechanism that tightens uniformly around the eyepiece, providing a firm, wide area of contact without causing any cosmetic damage.\u003c\/p\u003e\n\u003cp\u003eThis is particularly critical for heavy accessories like wide-field 2\" eyepieces or a camera attached for afocal imaging. The secure grip prevents any wobble or sag, maintaining a rigid connection that is crucial for both visual sharpness and stable, long-exposure astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eOptical Alignment: Consistent Centering for Visual and Imaging\u003c\/h3\u003e\n\u003cp\u003eA thumbscrew-based holder can introduce a slight tilt to your eyepiece or camera, shifting it off the optical axis and degrading image sharpness, especially in fast optical systems. The Baader Clamping Holder's design inherently forces the accessory to be perfectly centered within the barrel, ensuring repeatable and precise alignment.\u003c\/p\u003e\n\u003cp\u003eFor planetary imagers, this consistency is key to achieving the sharpest possible data, as it removes a significant source of mechanical error. Visually, it means that the field stop of your eyepiece remains perfectly concentric with the light cone of your telescope, preserving edge-of-field performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Baader Deluxe Clamping Eyepiece Holder differ from a standard thumbscrew holder?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstead of using a screw to press directly against your eyepiece, the \u003cstrong\u003eBaader Deluxe Clamping Holder\u003c\/strong\u003e uses an internal compression ring. When you tighten the collar, this ring applies even pressure around the entire circumference of the eyepiece barrel. This provides a more secure grip and prevents the scratches, dents, and optical tilt that are common with thumbscrew designs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Baader 2\" clamping holder scratch my eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The primary advantage of the clamping mechanism is that it is \u003cstrong\u003enon-marring\u003c\/strong\u003e. The force is distributed across a wide, smooth surface, eliminating the point-pressure that causes damage. Your 2\" eyepiece and accessory barrels will remain in pristine condition.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Baader Deluxe Clamping Holder suitable for heavy accessories like cameras or binoviewers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is an excellent choice for heavy loads. The uniform, 360-degree grip is significantly more secure than a single thumbscrew, preventing sag or wobble. This makes the \u003cstrong\u003eBaader Deluxe Clamping Holder\u003c\/strong\u003e ideal for securing imaging cameras, heavy 2\" diagonals, or binoviewers that require a rigid, stable connection to the telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this Baader holder improve centering for astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBy design, the clamping ring forces the camera's 2\" nosepiece to sit perfectly on the central axis of the focuser drawtube. This repeatable, precise centering is critical for astrophotography, as it prevents optical tilt that can lead to elongated stars in the corners of your image, especially with fast telescopes like a Newtonian astrograph.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat connection does the Baader Deluxe Clamping Eyepiece Holder use on the telescope side?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe specific thread or flange on the telescope side of the holder can vary, as Baader Planetarium produces these components to integrate with their extensive system of adapters. You will need to select the model that matches the output of your focuser, such as an M48, M54, or other common thread size. This product is the eyepiece-holding component itself.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is a secure eyepiece holder important when observing planets like Jupiter or Saturn?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen observing planets at high magnification, any slight movement or vibration is amplified, causing the image to blur or shift. The secure grip of the \u003cstrong\u003eBaader Deluxe Clamping Holder\u003c\/strong\u003e ensures that the eyepiece is held rigidly in place, minimizing vibrations and maintaining focus. This stability allows you to see finer details, such as cloud bands on Jupiter or the Cassini Division in Saturn's rings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003e2\" Eyepieces and Accessories\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping Mechanism\u003c\/td\u003e\n\u003ctd\u003eNon-Marring Compression Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScrew Type\u003c\/td\u003e\n\u003ctd\u003e2x M4 clamping screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eUNC, Baader Planetarium, Celestron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping System\u003c\/td\u003e\n\u003ctd\u003eScrew clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e50.8 (2\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eEyepiece Clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eT-2 Part #\u003c\/td\u003e\n\u003ctd\u003e17\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eø 2\" (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eS65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003e2\"\/SCT Thread (50.8mm), M58\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eS65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Deluxe Clamping Eyepiece Holder - 2\"\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Cleaning_and_Maintenance_of_Optics_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Cleaning and Maintenance of Optics Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967344439581,"sku":"BAA-2408140","price":85.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Deluxe-Clamping-Eyepiece-Holder-2-inch-1__58906.1597110863.1280.1280.jpg?v=1684340869"}],"url":"https:\/\/davidastro.com\/en-us\/collections\/visual-adapters.oembed","provider":"David Astro","version":"1.0","type":"link"}