{"title":"PrimaLuceLab Adapters","description":"\u003cp\u003ePrimaLuceLab adapters connect ESATTO focusers and ARCO rotators to telescopes, cameras and accessories. Many are stop ring adapters, such as M81 to M48, M57, M65 or T2 for the ESATTO 3\", M56 to SC or M54 for the ESATTO 2\" and M60 to T2 for the ESATTO 2\" LP, so the train threads on at a fixed position.\u003c\/p\u003e\u003cp\u003eThe collection also includes 2\" and 3\" visual backs, ARCO nosepieces, an M63x1 adapter, M48 spacers of 0.5mm and 1mm and a 7mm M48 extension for fine backfocus adjustment.\u003c\/p\u003e","products":[{"product_id":"primalucelab-adapter-from-m56-to-t2-with-stop-ring-for-esatto-2","title":"PrimaLuceLab Adapter from M56 to T2 with Stop Ring for ESATTO 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts the ESATTO 2\" M56 female thread to a standard T2 (M42x0.75) male thread\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for the PrimaLuceLab ESATTO 2\" robotic focuser\u003c\/li\u003e\n\u003cli\u003eFeatures an independent stop ring for precise rotational adjustment of your camera\u003c\/li\u003e\n\u003cli\u003eEnables secure, perfectly framed attachment of T2-threaded cameras, filter wheels, 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\u003ePrimaLuceLab Adapter from M56 to T2 with Stop Ring for ESATTO 2\"\u003c\/h2\u003e\n      \u003cp\u003eThis PrimaLuceLab adapter provides the essential connection between the M56 thread on an ESATTO 2\" robotic focuser and the universal T2 (M42x0.75) thread standard on most astronomy cameras and accessories. By converting the focuser's native connection, it opens up compatibility with a vast ecosystem of imaging equipment. The integrated stop ring allows you to lock your camera's orientation, ensuring perfect framing of your target every time.\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 M56 to T2 Connection for the ESATTO 2\" Focuser\u003c\/h3\u003e\n      \u003cp\u003eThe primary function of this adapter is to provide a robust, threaded connection from your ESATTO 2\" focuser's draw tube to any accessory with a female T2 thread. This allows you to directly attach popular DSLRs, mirrorless cameras, or dedicated astronomy cameras without flexure or instability. It's the standard interface needed for building a solid 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\u003ePrecise Framing Control with the Integrated Stop Ring\u003c\/h3\u003e\n      \u003cp\u003eUnlike a basic, single-piece adapter, this model includes a separate stop ring. This feature solves the common problem of a camera tightening at an awkward angle. You can thread your camera on, back it off to the perfect orientation for your target, and then tighten the stop ring against the camera body to lock it securely in place, preventing any rotation during an imaging session.\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 PrimaLuceLab M56 to T2 Adapter for ESATTO 2\" used for?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter is designed to connect any camera, filter wheel, or off-axis guider that uses a standard \u003cstrong\u003eT2 (M42x0.75) female thread\u003c\/strong\u003e to the \u003cstrong\u003eM56 female thread\u003c\/strong\u003e found on the draw tube of the PrimaLuceLab ESATTO 2\" robotic focuser.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on this ESATTO 2\" adapter improve imaging?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe stop ring allows you to control the final rotational angle of your camera. After threading your camera on, you can rotate it to the ideal position for framing your object and then tighten the stop ring to lock that orientation. This prevents your imaging sensor from being crooked relative to your target.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI have an ESATTO 2\" focuser and a ZWO camera with a T2-thread. Is this the correct adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, this is the exact adapter you need. It bridges the M56 thread on the ESATTO 2\" focuser to the T2 thread on your ZWO camera, creating a secure, threaded connection for your imaging train.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use this M56 to T2 adapter to frame the Horsehead Nebula (Barnard 33) vertically with my rectangular sensor?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eFirst, thread the main adapter body into your ESATTO 2\" focuser. Next, thread your camera onto the adapter's T2 thread until it is snug. Then, carefully loosen the camera just enough to rotate it so the long axis of your sensor aligns with the vertical structure of the nebula. Finally, tighten the adapter's stop ring against the camera body to lock this orientation in place.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work with other 2\" focusers?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this adapter is specifically designed for the \u003cstrong\u003eM56 thread\u003c\/strong\u003e used by the PrimaLuceLab ESATTO 2\" focuser. It is not compatible with standard 2\" visual backs or other focusers that do not have this specific M56 thread on their draw tube.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the PrimaLuceLab M56 to T2 Adapter add a lot of length to the optical path?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter is designed to be a low-profile solution. While any adapter adds some length, this model is engineered to provide a secure T2 connection while consuming a minimal amount of back focus, a critical consideration when building complex imaging trains.\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    \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\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967861977373,"sku":"PLL-PL3600218","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M56-to-T2-with-stop-ring-for-ESATTO-2__81397.1617396014.1280.1280.jpg?v=1684346165"},{"product_id":"primalucelab-adapter-from-m56-to-m48-with-stop-ring-for-esatto-2","title":"PrimaLuceLab Adapter from M56 to M48 with Stop Ring for ESATTO 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M48x0.75 accessories to ESATTO 2\" focusers\u003c\/li\u003e\n\u003cli\u003eAdds only 4mm of optical path length\u003c\/li\u003e\n\u003cli\u003eIncludes a stop ring for precise camera rotation\u003c\/li\u003e\n\u003cli\u003eThreads directly onto the ESATTO 2\" M56 draw tube\u003c\/li\u003e\n\u003cli\u003eEnables secure connection for cameras and filter wheels\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\u003ePrimaLuceLab Adapter from M56 to M48 with Stop Ring for ESATTO 2\"\u003c\/h2\u003e\n\u003cp\u003eThis PrimaLuceLab adapter seamlessly converts the M56 female thread on the ESATTO 2\" focuser's draw tube to a standard M48x0.75 male thread, adding a minimal 4mm of optical length to your imaging train. It provides a secure, direct-threaded connection for any M48-compatible camera, off-axis guider, or filter wheel. The integrated stop ring allows you to lock your camera's orientation, ensuring perfect sensor alignment and framing for every target.\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 Minimal 4mm Optical Path for M48 Accessories\u003c\/h3\u003e\n\u003cp\u003eEngineered for imagers conscious of back focus, this adapter consumes only 4mm of optical path. The adapter body itself is just 1.5mm thick, while the included stop ring accounts for the other 2.5mm. This allows you to integrate M48 accessories into your ESATTO 2\" setup without consuming significant back focus, preserving compatibility with reducers and other correctors.\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 Framing with the ESATTO 2\" M48 Stop Ring\u003c\/h3\u003e\n\u003cp\u003eThe included M48 stop ring is the key to achieving perfect rotational alignment. After threading your camera onto the adapter, you can rotate it to the desired angle and then lock it in place by tightening the stop ring against the camera body. This prevents the camera from rotating during an imaging session and allows you to precisely frame objects like the Andromeda Galaxy (M31) or the Horsehead Nebula (B33) without adjusting the entire optical tube.\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 PrimaLuceLab M56 to M48 Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter allows you to connect astrophotography cameras, filter wheels, or other accessories that use a standard \u003cstrong\u003eM48x0.75 female thread\u003c\/strong\u003e to the draw tube of a \u003cstrong\u003ePrimaLuceLab ESATTO 2\"\u003c\/strong\u003e robotic focuser, which has an M56 thread.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the M48 stop ring on the ESATTO 2\" adapter work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring is a separate, threaded ring that allows for precise rotational framing. You first thread the stop ring onto the adapter, then your camera. You can then loosen the stop ring, rotate your camera to the perfect angle, and then tighten the ring up against the camera body to lock its position securely.\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 PrimaLuceLab M56 to M48 adapter use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter adds a total of \u003cstrong\u003e4mm\u003c\/strong\u003e to your optical path. This is composed of the 1.5mm thick adapter itself and the 2.5mm thick stop ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this adapter to attach my M48-threaded ZWO or QHY camera to an ESATTO 2\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. This is the correct adapter for connecting any camera with a standard M48x0.75 female thread directly to the ESATTO 2\" focuser for a secure, rigid imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this the right adapter for using a 2\" eyepiece or diagonal with the ESATTO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This adapter is specifically for M48 threaded accessories. For visual observation with 2\" eyepieces or a diagonal, you need the dedicated \"2\" Visual Back for ESATTO 2\",\" which provides a compression ring eyepiece holder.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the M56 to M48 Adapter on my ESATTO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is straightforward. Simply thread the M56 female side of the adapter directly onto the M56 male thread on the end of the ESATTO 2\" focuser's draw tube until it is snug. Then, you can attach your M48 accessories to the other side.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967862010141,"sku":"PLL-PL3600216","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M56-to-M48-with-stop-ring-for-ESATTO-2__70405.1617396014.1280.1280.jpg?v=1684346167"},{"product_id":"primalucelab-adapter-from-m56-to-sc-with-stop-ring-for-esatto-2","title":"PrimaLuceLab Adapter from M56 to SC with Stop Ring for ESATTO 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts the ESATTO 2\" focuser's M56 thread to a standard female SC thread\u003c\/li\u003e\n\u003cli\u003eEnables direct connection of Schmidt-Cassegrain focal reducers and accessories\u003c\/li\u003e\n\u003cli\u003eIntegrated stop ring allows for precise 360° rotational framing of your camera\u003c\/li\u003e\n\u003cli\u003eSecures accessories for a rigid, flex-free imaging train\u003c\/li\u003e\n\u003cli\u003eAll-metal construction ensures a durable and reliable 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\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\u003ePrimaLuceLab Adapter from M56 to SC with Stop Ring for ESATTO 2\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter from M56 to SC with Stop Ring seamlessly integrates your ESATTO 2\" focuser with the Schmidt-Cassegrain (SC) accessory ecosystem, converting the focuser's native M56 drawtube thread to securely attach accessories like focal reducers.\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 Perfect Framing: The ESATTO 2\" M56 to SC Adapter\u003c\/h3\u003e\n\u003cp\u003eThis adapter provides the essential mechanical link between the M56x1 female thread on the ESATTO 2\" focuser's drawtube and the wide range of accessories that use the common male Schmidt-Cassegrain thread. It's the key to using popular focal reducers or other SC-threaded correctors directly with your PrimaLuceLab focuser.\u003c\/p\u003e\n\u003cp\u003eThe defining feature is the independent stop ring. After threading your accessory onto the adapter, you can slightly loosen the stop ring to rotate your entire imaging train 360°. This allows you to perfectly frame your target—for example, aligning your sensor with the long axis of the Andromeda Galaxy (M31)—and then lock it down without losing focus or alignment.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Connection:\u003c\/strong\u003e Threads directly into the ESATTO 2\" drawtube for a rigid, flex-free attachment point that can support a full imaging payload.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Rotational Control:\u003c\/strong\u003e The integrated stop ring allows you to orient your camera or accessory and lock it in place, ensuring perfect composition of your astrophoto.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad Compatibility:\u003c\/strong\u003e Opens up the advanced ESATTO 2\" focuser to a wide range of standard SC-threaded accessories, most notably focal reducers from various manufacturers.\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 purpose of the PrimaLuceLab M56 to SC adapter for the ESATTO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary purpose is to convert the M56 female thread on the drawtube of the \u003cstrong\u003eESATTO 2\" focuser\u003c\/strong\u003e into a standard female Schmidt-Cassegrain (SC) thread. This allows you to securely attach accessories like focal reducers, off-axis guiders, and other components that use the SC thread standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on this ESATTO 2\" adapter improve my astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring provides \u003cstrong\u003erotational freedom\u003c\/strong\u003e for your entire imaging train. After attaching your camera and accessories, you can loosen the ring, rotate the camera to the ideal angle for framing your target, and then tighten the ring to lock it in that position. This is crucial for achieving optimal composition without having to disassemble your setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this PrimaLuceLab adapter to connect a Celestron f\/6.3 reducer to my ESATTO 2\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The Celestron f\/6.3 Reducer\/Corrector uses a standard male SC thread for attachment to a telescope. This adapter creates the necessary female SC port on your ESATTO 2\" focuser, allowing you to thread the reducer in directly and securely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIf I want to frame the Horsehead Nebula (Barnard 33) vertically with my camera, 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 stop ring is designed for. You can attach your camera, achieve focus on a nearby star like Alnitak, and then use the stop ring to rotate your camera so that the distinctive shape of the Horsehead Nebula and Flame Nebula (NGC 2024) fits perfectly along the long axis of your sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this M56 to SC adapter add significant length to my imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter and stop ring are designed to be very low-profile. While any adapter adds some optical path length, this component is engineered to add a minimal amount, helping you preserve precious back focus in your imaging setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter required to use a 2\" diagonal for visual observing with the ESATTO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is specifically for SC-threaded accessories. For visual observing with a standard \u003cstrong\u003e2\" diagonal or eyepiece\u003c\/strong\u003e, you would need the dedicated \"2\" Visual Back for ESATTO 2\"\" (PL3600003), which provides a standard 2\" eyepiece holder with compression 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\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\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967862468893,"sku":"PLL-PL3600225","price":175.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M56-to-SC-with-stop-ring-for-ESATTO-2__53837.1641520563.1280.1280.jpg?v=1684346169"},{"product_id":"primalucelab-adapter-from-m56-to-m54-with-stop-ring-for-esatto-2","title":"PrimaLuceLab Adapter from M56 to M54 with Stop Ring for ESATTO 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects accessories with M54x0.75 female threads to the ESATTO 2\" focuser\u003c\/li\u003e\n\u003cli\u003eThreads directly onto the ESATTO 2\" M56 draw tube\u003c\/li\u003e\n\u003cli\u003eIntegrated stop ring allows for precise 360° rotational framing\u003c\/li\u003e\n\u003cli\u003eConsumes only 4mm of optical path 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\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\u003ePrimaLuceLab Adapter from M56 to M54 with Stop Ring for ESATTO 2\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter from M56 to M54 with Stop Ring for ESATTO 2\" provides a rigid, threaded connection for your M54-threaded accessories, consuming a minimal 4mm of optical path. This adapter is specifically designed to integrate your camera, off-axis guider, or filter wheel seamlessly with the ESATTO 2\" robotic focuser's M56 draw tube.\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 M54 Connection with Just 4mm of Back Focus\u003c\/h3\u003e\n\u003cp\u003eThis adapter converts the M56 female thread on the ESATTO 2\" draw tube to a standard M54x0.75 female thread, opening up compatibility with a wide range of imaging equipment. Its design prioritizes a minimal profile, adding only 4mm of total thickness (1.5mm for the adapter and 2.5mm for the stop ring) to your imaging train, preserving critical back focus for complex setups.\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 Framing with the Integrated M54 Stop Ring\u003c\/h3\u003e\n\u003cp\u003eThe key feature of this adapter is the independent stop ring. This mechanism allows you to thread your camera on fully, then slightly loosen the stop ring to rotate your entire imaging train to the perfect orientation. Once you have framed your target, like aligning your sensor with the long axis of the Andromeda Galaxy (M31), you simply tighten the stop ring to lock the camera's angle securely without losing rigidity.\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 PrimaLuceLab M56 to M54 adapter for the ESATTO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary purpose is to connect astrophotography accessories that use a female \u003cstrong\u003eM54x0.75 thread\u003c\/strong\u003e—such as many cameras, filter wheels, and off-axis guiders—to the \u003cstrong\u003eM56 female thread\u003c\/strong\u003e found on the draw tube of the PrimaLuceLab ESATTO 2\" robotic focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on the PrimaLuceLab M56 to M54 adapter improve my astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring allows you to \u003cstrong\u003eprecisely set the rotational angle\u003c\/strong\u003e of your camera sensor. This is crucial for composition, letting you frame celestial objects exactly as you wish. You can loosen the ring, rotate the camera for the perfect shot, and then lock it in place without having to unthread your entire imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the optical length of the PrimaLuceLab M56 to M54 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter adds a total of \u003cstrong\u003e4mm\u003c\/strong\u003e to your optical path. This is comprised of the 1.5mm thick adapter body and the 2.5mm thick stop ring. This minimal length helps conserve precious back focus, which is essential when using reducers or other accessories with strict spacing requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this PrimaLuceLab adapter to better frame the Orion Nebula (M42) with my rectangular sensor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an ideal use case. The stop ring allows you to orient your camera's sensor to best fit the sprawling nebulosity of M42. You can align the long axis of your sensor with the nebula's most interesting features, ensuring you capture the entire complex in a single, well-composed frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work with any focuser, or just the ESATTO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed for the \u003cstrong\u003ePrimaLuceLab ESATTO 2\" focuser\u003c\/strong\u003e, which features an M56 female thread on its draw tube. While it might physically thread onto other focusers with an M56 male thread, it is optimized for use within the PrimaLuceLab ecosystem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen connecting my camera to an ESATTO 2\" focuser on my refractor, is this the adapter I need?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIf your camera or the next accessory in your imaging train (like a filter wheel) has a female M54x0.75 thread, then this is the correct adapter to connect it to the ESATTO 2\". It provides a secure, rotatable, and low-profile connection.\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 Thread\u003c\/td\u003e\n\u003ctd\u003eM56 x 1 Male\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Side Thread\u003c\/td\u003e\n\u003ctd\u003eM54 x 0.75 Female\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab ESATTO 2\" Focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e4mm (1.5mm adapter + 2.5mm stop ring)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecial Feature\u003c\/td\u003e\n\u003ctd\u003eIntegrated stop ring for camera rotation\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\"\u003eAdapter from M56 to M54 with Stop 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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967862501661,"sku":"PLL-PL3600242","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M56-to-M54-with-stop-ring-for-ESATTO-2__14963.1617396015.1280.1280.jpg?v=1684346170"},{"product_id":"primalucelab-adapter-from-m56-to-m57-with-stop-ring-for-esatto-2","title":"PrimaLuceLab Adapter from M56 to M57 with Stop Ring for ESATTO 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts ESATTO 2\" M56 Male Thread to M57 Female Thread\u003c\/li\u003e\n\u003cli\u003eConnects M57x0.75 Threaded Cameras and Accessories\u003c\/li\u003e\n\u003cli\u003eIntegrated Stop Ring for Precise Rotational Framing\u003c\/li\u003e\n\u003cli\u003eDesigned Specifically for the PrimaLuceLab ESATTO 2\" Focuser\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\u003ePrimaLuceLab Adapter from M56 to M57 with Stop Ring for ESATTO 2\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter from M56 to M57 with Stop Ring for ESATTO 2\" provides a robust, threaded connection between the ESATTO 2\" robotic focuser and any camera or accessory with an M57x0.75 female thread. This component is essential for integrating a wide range of imaging equipment into the PrimaLuceLab ecosystem. It includes an independent stop ring, allowing you to precisely set the rotation of your camera for perfect framing of celestial targets.\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 M56 to M57 Connection for ESATTO 2\"\u003c\/h3\u003e\n\u003cp\u003eThis adapter is engineered to solve a critical connection need for owners of the ESATTO 2\" focuser. It directly threads onto the focuser's M56 draw tube, converting it to a standard M57 female thread. This allows you to create a secure, flexure-free imaging train with accessories that use the M57 standard, eliminating the potential for tilt or sag that can occur with compression fittings.\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 Stop Ring for Precise Camera Alignment\u003c\/h3\u003e\n\u003cp\u003eBeyond simple adaptation, this unit features an integrated M57 stop ring. This mechanism allows you to lock your camera's orientation at any angle. After threading your camera on, you can loosen the stop ring, rotate the camera to achieve the ideal composition for your target, and then tighten the ring to fix it firmly in place. This is invaluable for framing nebulae or aligning with the orientation of a galaxy without rotating your entire optical tube.\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 PrimaLuceLab M56 to M57 Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed to connect cameras and accessories that have a female M57x0.75 thread to the male M56 thread on the draw tube of a \u003cstrong\u003ePrimaLuceLab ESATTO 2\" robotic focuser\u003c\/strong\u003e. It creates a secure, all-threaded connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on the ESATTO 2\" adapter improve my astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring allows for precise \u003cstrong\u003erotational framing\u003c\/strong\u003e. You can thread your camera on, loosen the ring to rotate the camera to the perfect orientation for your target—for example, fitting the entire Andromeda Galaxy (M31) in the frame—and then lock it down. This prevents you from having to rotate your entire telescope or diagonal.\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 focuser other than the ESATTO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is specifically designed with an M56 male thread to fit the PrimaLuceLab ESATTO 2\" focuser. It will not work with focusers from other brands that do not use this specific thread size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this PrimaLuceLab adapter to frame a target like the Horsehead Nebula (Barnard 33) vertically in my camera sensor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The stop ring is perfect for this scenario. You can precisely rotate your camera to align its longest sensor axis with the nebula's orientation and then lock the position with the stop ring, ensuring optimal composition for your image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work with a camera that has a standard 1.25\" or 2\" nosepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This adapter creates a female M57 thread. It is intended for cameras or accessories that have a corresponding male M57 thread. For accessories with a 2\" nosepiece, you would need a different adapter, such as PrimaLuceLab's 2\" visual back.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the PrimaLuceLab M56 to M57 adapter add significant length to the optical path?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter is designed to be as thin as possible while maintaining structural rigidity. While it does add a small amount of optical path length, it is a low-profile solution intended to minimize impact on back focus requirements. Always confirm you have sufficient back focus available in your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967862599965,"sku":"PLL-PL3600227","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M56-to-M57-with-stop-ring-for-ESATTO-2__09372.1617396015.1280.1280.jpg?v=1684346175"},{"product_id":"primalucelab-2-visual-back-for-esatto-2","title":"PrimaLuceLab 2\" Visual Back for ESATTO 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects 2\" accessories to ESATTO 2\" and ARCO 2\"\u003c\/li\u003e\n\u003cli\u003eM56 female thread for direct attachment\u003c\/li\u003e\n\u003cli\u003eThree locking screws for secure, centered grip\u003c\/li\u003e\n\u003cli\u003eInternal brass compression ring prevents scratches\u003c\/li\u003e\n\u003cli\u003eAll-metal construction for rigidity\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\u003ePrimaLuceLab 2\" Visual Back for ESATTO 2\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 2\" Visual Back provides the essential M56 threaded connection for using standard 2-inch accessories with your ESATTO 2\" robotic focuser or ARCO 2\" rotator. This adapter allows you to securely attach 2\" diagonals for visual observing or camera nosepieces for imaging. It features a non-marring brass compression ring and three locking screws to firmly hold heavy equipment without damaging your accessory barrels.\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 Connection for 2\" Accessories\u003c\/h3\u003e\n\u003cp\u003eThis visual back is engineered to protect your investment in eyepieces and cameras. An internal brass compression ring distributes clamping force evenly around the barrel of your accessory, preventing the gouges and scratches commonly caused by single-screw designs. Three locking screws, spaced 120° apart, provide a perfectly centered and exceptionally strong grip, ensuring your imaging train remains rigid and free of tilt, even when loaded with heavy cameras or binoviewers.\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\u003eM56 Thread for Native ESATTO 2\" and ARCO 2\" Integration\u003c\/h3\u003e\n\u003cp\u003eDesigned as a native component of the PrimaLuceLab ecosystem, this visual back features an M56 female thread that attaches directly to the draw tube of the ESATTO 2\" microfocuser. This direct-thread connection eliminates potential flexure from stacked adapters. It is also the correct adapter for adding a 2\" eyepiece holder to the ARCO 2\" rotator, enabling you to manually frame targets with your camera before engaging the rotator.\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 PrimaLuceLab 2\" Visual Back for ESATTO 2\" used for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter allows you to connect standard 2-inch accessories, such as diagonals, eyepieces, or camera nosepieces, to the \u003cstrong\u003eM56 thread\u003c\/strong\u003e on the draw tube of a PrimaLuceLab ESATTO 2\" robotic focuser or ARCO 2\" rotator.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the PrimaLuceLab 2\" Visual Back to observe Jupiter with my ESATTO 2\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo observe a planet like Jupiter, you simply thread the visual back directly onto the M56 draw tube of your ESATTO 2\". Then, insert your 2\" diagonal into the visual back, secure it with the three locking screws, and add your preferred 2\" eyepiece to the diagonal. You can then use the ESATTO to achieve perfect focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this PrimaLuceLab visual back scratch my eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it is designed to prevent damage. The adapter features an \u003cstrong\u003einternal brass compression ring\u003c\/strong\u003e that tightens uniformly around the accessory barrel. This avoids the direct metal-on-metal contact of a simple thumbscrew, which can scratch and mar your equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the PrimaLuceLab 2\" Visual Back hold a heavy camera for astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The combination of the secure M56 thread connection and the \u003cstrong\u003ethree locking screws\u003c\/strong\u003e provides a very rigid and stable hold. This system is designed to support the weight of typical imaging setups, including DSLRs or dedicated astronomy cameras with filter wheels, without introducing tilt or flexure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter compatible with the PrimaLuceLab ARCO 2\" rotator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This 2\" visual back threads into the M56 port on the ARCO 2\" rotator, allowing you to use 2\" accessories with it. This is useful for attaching a camera with a 2\" nosepiece or for visual use through the rotator.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI need to place my camera further from the ESATTO 2\". Is this the right part?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this visual back adds minimal optical length. If you need to increase the distance between your focuser and camera to achieve focus, you should use an \u003cstrong\u003eM56 extension tube\u003c\/strong\u003e, which is designed specifically for that purpose within the PrimaLuceLab system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967863320861,"sku":"PLL-PL8410001","price":119.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-2-visual-back-for-ESATTO-2__03505.1617396016.1280.1280.jpg?v=1684346177"},{"product_id":"primalucelab-adapter-from-m81-to-t2-with-stop-ring-for-esatto-3","title":"PrimaLuceLab Adapter from M81 to T2 with Stop Ring for ESATTO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts the M81 male thread of ESATTO 3\" or ARCO 3\" systems to a standard T2 (M42x0.75) female thread\u003c\/li\u003e\n\u003cli\u003eEnables direct connection of T2-threaded cameras, filter wheels, and off-axis guiders\u003c\/li\u003e\n\u003cli\u003eFeatures an independent stop ring for precise rotational adjustment of your imaging train\u003c\/li\u003e\n\u003cli\u003eProvides a secure, rigid connection for maintaining 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\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\u003ePrimaLuceLab Adapter from M81 to T2 with Stop Ring for ESATTO 3\"\u003c\/h2\u003e\n\u003cp\u003eThis PrimaLuceLab adapter provides the essential connection between the large M81 thread of the ESATTO 3\" robotic focuser or ARCO 3\" rotator and the universally common T2 (M42x0.75) thread used by most dedicated astronomy cameras and accessories. It's a fundamental component for integrating your existing T2-based imaging train with PrimaLuceLab's large-format focusers, ensuring a solid and direct-threaded connection.\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\u003eM81 to T2 Thread Conversion for ESATTO 3\" \u0026amp; ARCO 3\"\u003c\/h3\u003e\n\u003cp\u003eThe primary function of this adapter is to bridge the gap between two critical standards. It allows you to securely attach your T2-threaded camera, filter wheel, or off-axis guider directly to the robust M81 drawtube of your ESATTO 3\" or ARCO 3\", bypassing the potential flexure of compression fittings. This direct-thread approach is critical for maintaining the strict optical alignment required for high-resolution imaging, especially with heavy equipment 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\u003ePrecise Framing Control with the T2 Stop Ring\u003c\/h3\u003e\n\u003cp\u003eBeyond simple adaptation, this unit includes a crucial stop ring for rotational control. Once your camera is threaded on, you can slightly loosen the stop ring, rotate the entire imaging train to achieve perfect framing on your target, and then lock it down without losing focus or alignment. This feature is indispensable for composing images of elongated objects like the Andromeda Galaxy (M31) or the Pleiades cluster (M45) to match your sensor's orientation.\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 PrimaLuceLab M81 to T2 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts main purpose is to allow you to connect any astrophotography accessory with a standard \u003cstrong\u003eT2 (M42x0.75) female thread\u003c\/strong\u003e to the large \u003cstrong\u003eM81 male thread\u003c\/strong\u003e found on the drawtube of the PrimaLuceLab ESATTO 3\" focuser and ARCO 3\" rotator. This makes the focuser compatible with a vast ecosystem of cameras, filter wheels, and guiders.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on this adapter help when imaging a target like the Orion Nebula (M42)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring gives you precise rotational control over your camera. For a large target like the Orion Nebula (M42), you can orient your camera sensor to capture the full extent of the nebula and the Running Man Nebula in a single frame. You simply thread the adapter on, loosen the stop ring, rotate your camera to the desired angle, and then tighten the ring to lock the position securely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this PrimaLuceLab adapter compatible with focusers other than the ESATTO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed for the \u003cstrong\u003eM81x1 thread\u003c\/strong\u003e of the PrimaLuceLab ESATTO 3\" focuser and ARCO 3\" rotator. While it might physically thread onto other focusers with an M81 thread, correct spacing and compatibility are only guaranteed with the intended PrimaLuceLab products.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill using the M81 to T2 adapter cause vignetting with my full-frame camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a potential trade-off. The T2 thread has a smaller clear aperture than the M81 thread of the ESATTO 3\" focuser. While it is perfect for cameras with smaller sensors (like APS-C or Four Thirds), stepping down to the T2 format will likely cause some vignetting on the corners of a full-frame (24x36mm) sensor. For full-frame imaging, you should consider using M48 or larger adapters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this adapter add significant back focus to my imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed to be as thin as possible to consume minimal back focus. While it does add a small amount of optical path length, it is engineered to allow you to reach focus with most standard T2-based camera and accessory combinations.\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 both the ESATTO 3\" focuser and the ARCO 3\" rotator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Both the ESATTO 3\" focuser and the ARCO 3\" rotator feature the same M81x1 female thread on their drawtubes, making this adapter fully compatible with either device.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\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\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967864434973,"sku":"PLL-PL3600282","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M81-to-T2-with-stop-ring-for-ESATTO-3__93554.1617396018.1280.1280.jpg?v=1684346195"},{"product_id":"primalucelab-adapter-from-m81-to-m48-with-stop-ring-for-esatto-3","title":"PrimaLuceLab Adapter from M81 to M48 with Stop Ring for ESATTO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts the M81 female thread of the ESATTO 3\" focuser to a male M48x0.75 thread\u003c\/li\u003e\n\u003cli\u003eAllows direct connection of cameras, filter wheels, and off-axis guiders\u003c\/li\u003e\n\u003cli\u003eIncludes a separate stop ring for precise 360° rotational adjustment\u003c\/li\u003e\n\u003cli\u003eProvides a secure, rigid connection for your imaging train\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\u003ePrimaLuceLab Adapter from M81 to M48 with Stop Ring for ESATTO 3\"\u003c\/h2\u003e\n\u003cp\u003eThis PrimaLuceLab adapter provides the essential threaded connection between the M81 draw tube of an ESATTO 3\" robotic focuser and the universal M48x0.75 standard used by most astrophotography cameras and accessories. The adapter includes an independent M48 stop ring, allowing you to precisely set and lock your camera's rotation for perfect, repeatable framing of your target.\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\u003eFrom M81 to M48: Native Connection for the ESATTO 3\"\u003c\/h3\u003e\n\u003cp\u003eThe ESATTO 3\" focuser features a large M81 female thread on its draw tube to ensure a rigid, flex-free connection. This adapter steps that M81 thread down to the common M48 male thread, opening up compatibility with a vast ecosystem of imaging equipment, from DSLRs with M48 T-rings to dedicated astronomy cameras, filter wheels, and off-axis guiders.\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 Framing with the Included M48 Stop Ring\u003c\/h3\u003e\n\u003cp\u003eAchieving perfect composition is critical in astrophotography. This adapter kit includes a separate M48 stop ring that gives you complete rotational control. Simply thread your camera onto the adapter, rotate it to the exact angle you desire, and then tighten the stop ring against your camera's body to lock it securely in place, preventing any unwanted rotation 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 main purpose of the PrimaLuceLab M81 to M48 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary function is to connect any camera or accessory with a standard \u003cstrong\u003eM48 female thread\u003c\/strong\u003e to the \u003cstrong\u003eM81 female thread\u003c\/strong\u003e found on the draw tube of the PrimaLuceLab ESATTO 3\" focuser and ARCO 3\" rotator. This makes your high-end focuser compatible with the most common imaging thread standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on this M81 to M48 adapter improve my astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring allows you to \u003cstrong\u003elock your camera's orientation\u003c\/strong\u003e at any angle. After threading your camera on, you can back it off slightly to get the perfect framing for your target, then tighten the stop ring against the camera to hold that position securely. This is essential for creating mosaics or simply composing your shot precisely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work with the ARCO 3\" rotator as well as the ESATTO 3\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The ARCO 3\" rotator also uses the same M81 thread standard, and this adapter is fully compatible, allowing you to attach your M48-threaded imaging train directly to the rotator.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a camera with a 2\" nosepiece, is this the right adapter for my ESATTO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is for threaded M48 connections. For accessories with a 2\" nosepiece, you will need the specific \u003cstrong\u003ePrimaLuceLab 2\" Visual Back for ESATTO 3\"\u003c\/strong\u003e, which provides a non-marring compression ring clamp for such items.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use this adapter to perfectly frame a target like the Andromeda Galaxy (M31) with my rectangular sensor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo frame a large, elongated object like the Andromeda Galaxy (M31), you'll want to align the long axis of your camera sensor with the galaxy. Simply thread the adapter onto your ESATTO 3\", attach your camera, and loosen the stop ring. You can then rotate the entire camera until M31 is framed perfectly in your live view, and then tighten the stop ring to lock that orientation for your imaging run.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this M81 to M48 adapter on a Ritchey-Chrétien telescope with an ESATTO 3\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. If you have an ESATTO 3\" focuser installed on your Ritchey-Chrétien or any other compatible telescope, this adapter provides the standard M48 connection point you need for your flattener\/reducer and camera train. Just be sure to account for the adapter's thickness in your back focus calculations.\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 Thread\u003c\/td\u003e\n\u003ctd\u003eM81 x 1 Female\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessory-Side Thread\u003c\/td\u003e\n\u003ctd\u003eM48 x 0.75 Male\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab ESATTO 3\", ARCO 3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Function\u003c\/td\u003e\n\u003ctd\u003eThreaded Adapter with Rotational Stop Ring\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\"\u003eM81 to M48 Adapter\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\"\u003eM48 Stop 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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967864500509,"sku":"PLL-PL3600277","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M81-to-M48-with-stop-ring-for-ESATTO-3__72243.1617396018.1280.1280.jpg?v=1684346196"},{"product_id":"primalucelab-adapter-from-m81-to-m54-with-stop-ring-for-esatto-3","title":"PrimaLuceLab Adapter from M81 to M54 with Stop Ring for ESATTO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M81 Threads to M54 Accessories\u003c\/li\u003e\n\u003cli\u003eAdds a Minimal 4mm of Optical Path\u003c\/li\u003e\n\u003cli\u003eIncludes Stop Ring for Rotational Adjustment\u003c\/li\u003e\n\u003cli\u003eCompatible with ESATTO 3\" and ARCO 3\"\u003c\/li\u003e\n\u003cli\u003eEnables Precise Sensor Framing\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\u003ePrimaLuceLab Adapter from M81 to M54 with Stop Ring for ESATTO 3\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter from M81 to M54 provides a secure, rigid connection for accessories with an M54 female thread to the M81 draw tube of an ESATTO 3\" or ARCO 3\" unit. Comprised of a 1.5mm adapter and a 2.5mm stop ring, this component adds a total optical length of just 4mm, preserving precious back focus in complex 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\u003eThe 1.5mm Adapter: M81 to M54 Connection\u003c\/h3\u003e\n\u003cp\u003eThis adapter's primary function is to convert the large M81 male thread on the ESATTO 3\" or ARCO 3\" draw tube to the widely used M54 male thread. This allows you to directly attach a vast ecosystem of cameras, filter wheels, and off-axis guiders that rely on the M54 standard, ensuring a solid, threaded connection with no flexure.\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 2.5mm Stop Ring for Precise Sensor Alignment\u003c\/h3\u003e\n\u003cp\u003eThe included 2.5mm stop ring is critical for achieving perfect framing. After threading the main adapter onto your focuser, you can back it off slightly to orient your camera sensor to the ideal angle. The stop ring is then tightened against the focuser body, locking the adapter in place and preventing any rotation 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 total optical length of the PrimaLuceLab M81 to M54 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe total optical length is \u003cstrong\u003e4mm\u003c\/strong\u003e. This is composed of the main adapter body, which is \u003cstrong\u003e1.5mm\u003c\/strong\u003e thick, and the stop ring, which is \u003cstrong\u003e2.5mm\u003c\/strong\u003e thick.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on this PrimaLuceLab adapter help with framing a target like the Horsehead Nebula (B33)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring allows you to achieve precise rotational framing. You can thread the adapter on, then slightly unscrew it to perfectly align your camera's sensor with the orientation of the nebula. Once positioned, you tighten the stop ring against the ESATTO or ARCO body to lock that angle securely for the duration of your imaging run.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this M81 to M54 adapter with the PrimaLuceLab ARCO 3\" rotator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this adapter is fully compatible with both the \u003cstrong\u003eESATTO 3\" robotic focuser\u003c\/strong\u003e and the \u003cstrong\u003eARCO 3\" robotic rotator\u003c\/strong\u003e. It threads directly into the M81 port on either device.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main purpose of this adapter for my ESATTO 3\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts purpose is to provide a threaded connection for cameras and accessories that use the common \u003cstrong\u003eM54 female thread\u003c\/strong\u003e. The ESATTO 3\" has a native M81 thread, and this adapter bridges that gap, allowing you to attach your M54-compatible imaging equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy camera has an M54 female thread. Will this PrimaLuceLab adapter connect it to my ESATTO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the correct adapter. It presents a male M54 thread that will connect directly to your camera's M54 female thread, creating a secure, all-threaded imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm connecting a camera with an M54 thread to my ESATTO 3\" on a Ritchey-Chretien telescope. Is this the right part?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this adapter is designed for exactly that scenario. It allows you to securely attach your M54-threaded camera to the ESATTO 3\" focuser commonly used on Ritchey-Chretien, Cassegrain, and large refractor telescopes.\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 Thread\u003c\/td\u003e\n\u003ctd\u003eM81\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Thread\u003c\/td\u003e\n\u003ctd\u003eM54\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eESATTO 3\", ARCO 3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Optical Length\u003c\/td\u003e\n\u003ctd\u003e4mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapter Optical Length\u003c\/td\u003e\n\u003ctd\u003e1.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStop Ring Optical Length\u003c\/td\u003e\n\u003ctd\u003e2.5mm\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\"\u003eAdapter from M81 to M54 with Stop 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\u003cp\u003eThis product does not require specific software or a dedicated manual.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967864598813,"sku":"PLL-PL3600275","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M81-to-M54-with-stop-ring-for-ESATTO-3__11735.1617396019.1280.1280.jpg?v=1684346198"},{"product_id":"primalucelab-adapter-from-m81-to-m57-with-stop-ring-for-esatto-3","title":"PrimaLuceLab Adapter from M81 to M57 with Stop Ring for ESATTO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M57 accessories to M81 threads\u003c\/li\u003e\n\u003cli\u003eCompatible with ESATTO 3\" and ARCO 3\"\u003c\/li\u003e\n\u003cli\u003eAdds only 4mm of optical length\u003c\/li\u003e\n\u003cli\u003eIncludes a stop ring for precise 360° camera rotation\u003c\/li\u003e\n\u003cli\u003eThreads directly to the focuser or rotator draw tube\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\u003ePrimaLuceLab Adapter from M81 to M57 with Stop Ring for ESATTO 3\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter from M81 to M57 with Stop Ring for ESATTO 3\" provides a secure, low-profile connection for your imaging train, converting the M81 thread of the focuser drawtube to a standard M57 female thread. This adapter adds only 4mm of total optical length, preserving precious back focus for connecting cameras and accessories like filter wheels or off-axis guiders.\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 M57 Connection with a 4mm Optical Path\u003c\/h3\u003e\n\u003cp\u003eThis adapter threads directly onto the M81 draw tube of your ESATTO 3\" focuser or ARCO 3\" rotator, providing a robust M57 female thread for your equipment. The assembly consists of the 1.5mm adapter and a 2.5mm stop ring, consuming a minimal 4mm of back focus to maintain compatibility with complex imaging trains.\u003c\/p\u003e\n\u003cp\u003eThe included stop ring is the critical component for precise framing. It allows you to rotate your attached camera to any angle and then lock it securely in place, ensuring your imaging sensor is perfectly aligned with your target without having to unthread your entire camera setup.\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 PrimaLuceLab M81 to M57 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter allows you to connect any camera or accessory that has a female \u003cstrong\u003eM57 thread\u003c\/strong\u003e to the male \u003cstrong\u003eM81 thread\u003c\/strong\u003e found on the draw tube of the PrimaLuceLab ESATTO 3\" robotic focuser and ARCO 3\" rotator.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on the PrimaLuceLab M81 to M57 adapter work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring threads onto the M57 male thread of the adapter before you attach your camera. It acts as a counter-locking mechanism, allowing you to thread your camera on, rotate it to the desired angle for perfect framing, and then tighten the stop ring against the camera body to lock it in that position.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the total optical length of the PrimaLuceLab M81 to M57 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe total optical length is \u003cstrong\u003e4mm\u003c\/strong\u003e. This is composed of the main adapter body (1.5mm) and the stop ring (2.5mm).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this PrimaLuceLab M81 to M57 adapter with the ARCO 3\" rotator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this adapter is fully compatible with both the ESATTO 3\" focuser and the ARCO 3\" rotator, as both units use the same M81 female thread on their draw tubes for attaching accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI need to connect my camera with an M57 thread to my ESATTO 3\" focuser. Is the PrimaLuceLab M81 to M57 adapter the correct part?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the exact part designed for that purpose. It converts the large M81 thread of the ESATTO 3\" to the widely used M57 thread, allowing you to securely attach your camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the PrimaLuceLab M81 to M57 adapter to frame the Andromeda Galaxy (M31) with my rectangular camera sensor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring is essential for this. After attaching the adapter and your camera to your ESATTO 3\", you can loosen the stop ring slightly, rotate the camera body until the long axis of your sensor aligns with the longest dimension of the Andromeda Galaxy (M31), and then tighten the stop ring to fix the camera in that orientation for your exposure sequence.\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\u003eM81 Male Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessory Side Connection\u003c\/td\u003e\n\u003ctd\u003eM57 Female Thread (via M57 Male thread on adapter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Optical Length\u003c\/td\u003e\n\u003ctd\u003e4mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapter Body Length\u003c\/td\u003e\n\u003ctd\u003e1.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStop Ring Length\u003c\/td\u003e\n\u003ctd\u003e2.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab ESATTO 3\", PrimaLuceLab ARCO 3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Function\u003c\/td\u003e\n\u003ctd\u003eThread reduction and camera rotation\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\"\u003eAdapter from M81 to M57\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\"\u003eM57 Stop 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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967864762653,"sku":"PLL-PL3600279","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M81-to-M57-with-stop-ring-for-ESATTO-3__80120.1617396019.1280.1280.jpg?v=1684346200"},{"product_id":"primalucelab-adapter-from-m81-to-m68-with-stop-ring-for-esatto-3","title":"PrimaLuceLab Adapter from M81 to M68 with Stop Ring for ESATTO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M68x1 threaded accessories to M81x1 threaded focusers\u003c\/li\u003e\n\u003cli\u003eDesigned for the PrimaLuceLab ESATTO 3\" and ARCO 3\" systems\u003c\/li\u003e\n\u003cli\u003eAdds a minimal 4mm of optical path length\u003c\/li\u003e\n\u003cli\u003eIncludes a 2.5mm stop ring for precise camera rotation and framing\u003c\/li\u003e\n\u003cli\u003eMachined aluminum construction with black anodizing\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\u003ePrimaLuceLab Adapter from M81 to M68 with Stop Ring for ESATTO 3\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter seamlessly connects your camera or accessories with an M68 female thread to the M81 draw tube of an ESATTO 3\" or ARCO 3\" unit. This adapter assembly adds only 4mm of total optical length, consisting of the 1.5mm adapter body and a separate 2.5mm stop ring. This ultra-thin profile is critical for preserving precious back focus in complex imaging trains, while the stop ring provides precise rotational control for perfect sensor alignment.\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\u003eM81 to M68 Connection: A Minimal 4mm Optical Path\u003c\/h3\u003e\n\u003cp\u003eThis adapter provides the essential mechanical link between the large M81 thread on PrimaLuceLab's 3-inch focusers and the common M68x1 thread standard found on many full-frame cameras, filter wheels, and off-axis guiders. By consuming just 4mm of back focus, it allows you to integrate your M68-threaded equipment without compromising your ability to reach focus with reducers or other corrective optics in the 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\u003eRotational Framing: Lock Your Camera Angle with the 2.5mm Stop Ring\u003c\/h3\u003e\n\u003cp\u003eThe included 2.5mm stop ring is the key to achieving perfect composition. After threading the main 1.5mm adapter onto your focuser, you can back it off slightly to orient your camera sensor to the exact angle you need. You then thread the stop ring up against the adapter to lock it securely in place, ensuring your target is framed exactly as intended without any flexure or rotation 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 PrimaLuceLab M81 to M68 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed specifically to connect astrophotography accessories that use a female \u003cstrong\u003eM68x1 thread\u003c\/strong\u003e to the male \u003cstrong\u003eM81x1 thread\u003c\/strong\u003e on the draw tube of a PrimaLuceLab ESATTO 3\" robotic focuser or ARCO 3\" rotator.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on this adapter help with astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring allows you to \u003cstrong\u003eprecisely set the rotational angle of your camera\u003c\/strong\u003e. You can thread the adapter on, adjust the camera's orientation for the best framing of your target, and then tighten the stop ring against the adapter to lock that position securely. This is crucial for composing images of large targets like the Andromeda Galaxy (M31) or the North American Nebula (NGC 7000).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the total optical path added by the PrimaLuceLab M81 to M68 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe entire assembly adds a total of \u003cstrong\u003e4mm\u003c\/strong\u003e to your optical path. This is composed of the 1.5mm thick adapter itself and the 2.5mm thick stop ring. This minimal length helps preserve back focus, which is often limited in astrophotography setups.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work with focusers other than the ESATTO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile it is designed for the ESATTO 3\" and ARCO 3\", it may work with other focusers that have a male M81x1 thread on the draw tube. However, you must verify the thread specification of your focuser to ensure compatibility.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a camera with an M68 thread. How do I connect it to my ESATTO 3\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is the correct component. You simply thread the M81 side of the adapter onto the ESATTO 3\" draw tube, and then thread your M68-equipped camera or accessory onto the other side of the adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this adapter to perfectly frame the Rosette Nebula (NGC 2244) with my rectangular camera sensor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is exactly what the stop ring is for. You can loosen the adapter, rotate your camera to align the long axis of your sensor with the most interesting dimension of the nebula, and then use the stop ring to lock that orientation in place for your imaging run.\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\u003eM81 to M68 Adapter with Stop Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Side Thread\u003c\/td\u003e\n\u003ctd\u003eM81x1 Male\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessory Side Thread\u003c\/td\u003e\n\u003ctd\u003eM68x1 Female\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Optical Length\u003c\/td\u003e\n\u003ctd\u003e4mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapter Body Thickness\u003c\/td\u003e\n\u003ctd\u003e1.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStop Ring Thickness\u003c\/td\u003e\n\u003ctd\u003e2.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab ESATTO 3\", ARCO 3\"\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967864795421,"sku":"PLL-PL3600262","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M81-to-M68-with-stop-ring-for-ESATTO-3__38126.1617396019.1280.1280.jpg?v=1684346201"},{"product_id":"primalucelab-adapter-from-m81-to-m72-with-stop-ring-for-esatto-3","title":"PrimaLuceLab Adapter from M81 to M72 with Stop Ring for ESATTO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts M81 male threads to M72 female threads\u003c\/li\u003e\n\u003cli\u003eDesigned for PrimaLuceLab ESATTO 3\" focusers and ARCO 3\" rotators\u003c\/li\u003e\n\u003cli\u003eAdds a minimal 4mm of total optical length\u003c\/li\u003e\n\u003cli\u003eIncludes a stop ring for precise, lockable camera rotation\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\u003ePrimaLuceLab Adapter from M81 to M72 with Stop Ring for ESATTO 3\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter seamlessly connects accessories with an M72 female thread to the large M81 male thread on your ESATTO 3\" robotic focuser or ARCO 3\" camera rotator. With the included stop ring, the complete assembly adds only 4mm of optical length, preserving critical backfocus for complex 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\u003eM81 to M72 Connection for ESATTO 3\" and ARCO 3\"\u003c\/h3\u003e\n\u003cp\u003eThis adapter provides the essential mechanical link between PrimaLuceLab's large-format focusers and the wide ecosystem of imaging accessories that use the M72 thread standard. It allows you to securely attach field flatteners, reducers, or camera-specific adapters directly to the ESATTO 3\" drawtube for a rigid, flexure-free connection.\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 Framing with a 4mm Optical Path\u003c\/h3\u003e\n\u003cp\u003eMore than a simple thread converter, this adapter includes a dedicated stop ring for complete rotational control. You can thread your camera on, rotate it to the perfect angle for your target, and then lock it in place with the stop ring, ensuring your composition remains fixed throughout the imaging session. The entire assembly is engineered for a minimal profile, consuming just 4mm of backfocus (1.5mm for the adapter and 2.5mm for the stop ring).\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 PrimaLuceLab M81 to M72 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter's primary function is to connect any camera or accessory with a female M72x1 thread to the male M81x1 thread found on the drawtube of the PrimaLuceLab ESATTO 3\" focuser and ARCO 3\" rotator.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on this M81 to M72 adapter improve imaging?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring allows you to precisely set and lock the rotational angle of your imaging camera. After threading on your camera, you can adjust its orientation to perfectly frame your target, such as fitting a long galaxy into the sensor's diagonal, and then tighten the stop ring to prevent any rotation during an exposure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the total optical length of the PrimaLuceLab M81 to M72 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe total optical length is \u003cstrong\u003e4mm\u003c\/strong\u003e. This is comprised of two parts: the main adapter body, which is \u003cstrong\u003e1.5mm\u003c\/strong\u003e thick, and the stop ring, which is \u003cstrong\u003e2.5mm\u003c\/strong\u003e thick.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter compatible with focusers other than the ESATTO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile it is designed and optimized for the PrimaLuceLab ESATTO 3\" and ARCO 3\", it will technically thread onto any male M81x1 port. However, correct seating and performance are only guaranteed within the PrimaLuceLab ecosystem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI need to connect my camera with an M72 thread to an ESATTO 3\" on my Ritchey-Chrétien telescope. Is this the right part?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the exact adapter for your application. It provides a secure M81-to-M72 connection and its minimal 4mm optical length helps preserve the critical backfocus required by most Ritchey-Chrétien optical designs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this M81 to M72 adapter help when imaging a large target like the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen imaging a large, elongated object like the Andromeda Galaxy (M31), the stop ring is crucial. It allows you to rotate your camera sensor to align with the galaxy's longest axis, ensuring you capture the full extent of the object within a single frame for optimal composition.\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\u003eMale Thread\u003c\/td\u003e\n\u003ctd\u003eM81x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFemale Thread\u003c\/td\u003e\n\u003ctd\u003eM72x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab ESATTO 3\", PrimaLuceLab ARCO 3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Optical Length\u003c\/td\u003e\n\u003ctd\u003e4mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapter Optical Length\u003c\/td\u003e\n\u003ctd\u003e1.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStop Ring Optical Length\u003c\/td\u003e\n\u003ctd\u003e2.5mm\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967864828189,"sku":"PLL-PL3600272","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M81-to-M72-with-stop-ring-for-ESATTO-3__08596.1617396019.1280.1280.jpg?v=1684346203"},{"product_id":"primalucelab-adapter-from-m81-to-m68-female-for-esatto-3","title":"PrimaLuceLab Adapter from M81 to M68 Female for ESATTO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M68x1 Male Threaded Accessories\u003c\/li\u003e\n\u003cli\u003eAttaches to M81 Female Thread on Focuser\/Rotator\u003c\/li\u003e\n\u003cli\u003eCompatible with ESATTO 3\" Focuser\u003c\/li\u003e\n\u003cli\u003eCompatible with ARCO 3\" Rotator\u003c\/li\u003e\n\u003cli\u003eSolid, 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\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\u003ePrimaLuceLab Adapter from M81 to M68 Female for ESATTO 3\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter from M81 to M68 Female creates a direct, secure threaded connection between your ESATTO 3\" robotic focuser or ARCO 3\" rotator and any camera or accessory that uses a male M68x1 thread. This adapter is the essential component for integrating popular M68-format accessories, like field flatteners or off-axis guiders, into your PrimaLuceLab imaging system. It ensures a rigid, non-flexing link in your optical train, critical for sharp, consistent imaging results.\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 M81 to M68 Connection for ESATTO 3\" \u0026amp; ARCO 3\"\u003c\/h3\u003e\n\u003cp\u003eThis adapter threads directly onto the M81 female thread of the ESATTO 3\" focuser's draw tube or the ARCO 3\" rotator. On the other side, it presents a female M68x1 thread, ready to accept your camera, reducer, or other threaded accessory. This single-piece solution eliminates potential points of flexure or misalignment that can occur with multi-part 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\u003eMaintain a Rigid Imaging Train for M68 Accessories\u003c\/h3\u003e\n\u003cp\u003eFor astrophotography, a rigid optical train is non-negotiable. Using a direct threaded connection like this M81 to M68 adapter prevents the sag and tilt common with slip-fit or compression ring adapters, especially when using heavier cameras or filter wheels. This solid mechanical joint ensures your entire imaging system remains perfectly collinear with the telescope's optical axis from the focuser through to the 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 is the primary function of the PrimaLuceLab M81 to M68 Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter's primary function is to convert the native \u003cstrong\u003eM81 female thread\u003c\/strong\u003e on a PrimaLuceLab ESATTO 3\" focuser or ARCO 3\" rotator to a standard \u003cstrong\u003eM68 female thread\u003c\/strong\u003e. This allows you to securely attach cameras, field flatteners, reducers, and other accessories that use a male M68x1 thread.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich PrimaLuceLab devices is the M81 to M68 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 PrimaLuceLab's 3-inch ecosystem. It is fully compatible with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eESATTO 3\" Robotic Microfocuser\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eARCO 3\" Robotic Rotator\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install this M81 to M68 adapter on my ESATTO 3\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is straightforward. You simply thread the adapter directly onto the M81 thread located on the end of the ESATTO 3\" focuser's draw tube until it is snug. Your M68-threaded accessory can then be attached to the other side of the adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this adapter to connect a camera with a 2\" nosepiece to my ESATTO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is for threaded connections only. To connect an accessory with a 2\" nosepiece, you would need the dedicated \u003cstrong\u003ePrimaLuceLab 2\" Visual Back for ESATTO 3\"\u003c\/strong\u003e, which provides a compression ring holder instead of an M68 thread.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy imaging train uses an M68 off-axis guider. Is this the right adapter for my PrimaLuceLab ARCO 3\" rotator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the correct adapter. It allows you to securely attach your M68-threaded off-axis guider to the ARCO 3\" rotator, ensuring a solid, repeatable connection that maintains optical alignment as the rotator turns.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy choose this threaded adapter over a universal slip-fit type for my ESATTO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA threaded connection provides superior rigidity and prevents tilt. For imaging with heavy cameras, filter wheels, or off-axis guiders, a threaded connection is essential to eliminate flexure that can ruin long exposures. This PrimaLuceLab adapter ensures your entire imaging train is securely locked to the focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967864860957,"sku":"PLL-PL3600289","price":119.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M81-to-M68-female-for-ESATTO-3__94172.1641520576.1280.1280.jpg?v=1684346204"},{"product_id":"primalucelab-adapter-from-m81-to-m72-female-for-esatto-3","title":"PrimaLuceLab Adapter from M81 to M72 Female for ESATTO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M72 male threads to M81 female threads\u003c\/li\u003e\n\u003cli\u003eDesigned for PrimaLuceLab ESATTO 3\" robotic focusers\u003c\/li\u003e\n\u003cli\u003eCompatible with PrimaLuceLab ARCO 3\" robotic rotators\u003c\/li\u003e\n\u003cli\u003eProvides a secure, direct-threaded connection for imaging trains\u003c\/li\u003e\n\u003cli\u003eMachined aluminum with 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\u003ePrimaLuceLab Adapter from M81 to M72 Female for ESATTO 3\"\u003c\/h2\u003e\n\u003cp\u003eThis PrimaLuceLab adapter creates a robust, native-thread connection between the M81 draw tube of an ESATTO 3\" robotic focuser or ARCO 3\" rotator and any camera or accessory using an M72 male thread. It eliminates potential flexure from slip-fit adapters by providing a rigid, threaded junction essential for supporting heavy imaging 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\u003eSecure M72 Threaded Connection for ESATTO 3\" Focusers\u003c\/h3\u003e\n\u003cp\u003eBy threading directly onto the M81 draw tube of the ESATTO 3\" focuser, this adapter ensures your imaging components are perfectly collinear with the optical axis. This direct-fit approach is critical for astrophotography, where any tilt or sag in the system can compromise image sharpness, especially with large sensors.\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\u003eIntegrating Accessories into the PrimaLuceLab Ecosystem\u003c\/h3\u003e\n\u003cp\u003eThis adapter is a key component for integrating non-standard accessories into the PrimaLuceLab ecosystem. It extends compatibility beyond the native M81 thread, allowing you to connect flatteners, reducers, or off-axis guiders that use the M72 standard to both the ESATTO 3\" focuser and the ARCO 3\" rotator for a fully automated imaging setup.\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 PrimaLuceLab M81 to M72 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary function is to convert the \u003cstrong\u003eM81 female thread\u003c\/strong\u003e on the draw tube of a PrimaLuceLab ESATTO 3\" focuser or ARCO 3\" rotator into an \u003cstrong\u003eM72 female thread\u003c\/strong\u003e. This allows you to securely attach cameras, field flatteners, or other accessories that have a corresponding M72 male thread.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich PrimaLuceLab products is this M81 to M72 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 PrimaLuceLab products that feature the large M81 threaded connection. This includes the \u003cstrong\u003eESATTO 3\" robotic microfocuser\u003c\/strong\u003e and the \u003cstrong\u003eARCO 3\" robotic rotator\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this PrimaLuceLab M81 to M72 adapter attach to my focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter has an M81 male thread that screws directly into the M81 female thread on the ESATTO 3\" or ARCO 3\" draw tube. This creates a solid, rigid connection for the rest of your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of accessories can I connect with this M81 to M72 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can connect any astrophotography accessory that terminates in an M72x1 male thread. This commonly includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eField flatteners or reducer\/correctors\u003c\/li\u003e\n\u003cli\u003eOff-axis guiders (OAGs)\u003c\/li\u003e\n\u003cli\u003eCustom camera adapters and spacers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a full-frame camera with an M72 male thread. Will this adapter let me connect it securely to my ESATTO 3\" on my Ritchey-Chrétien telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is precisely the intended use case. The adapter provides the secure, threaded connection needed to prevent any tilt or sag when using a heavy camera on a large instrument like a Ritchey-Chrétien, ensuring your sensor remains perfectly flat to the focal plane.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIf I'm building an imaging train for my large refractor with an ARCO 3\" rotator, is this M81 to M72 adapter the right part for my M72-threaded flattener?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. If your field flattener has an M72 male thread, this adapter will allow you to connect it directly to the output of the ARCO 3\" rotator. This ensures your entire imaging train, from rotator to camera, is rigidly connected for precise framing and rotation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967864959261,"sku":"PLL-PL3600252","price":97.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M81-to-M72-female-for-ESATTO-3__15933.1617396020.1280.1280.jpg?v=1684346206"},{"product_id":"primalucelab-2-visual-back-for-esatto-3","title":"PrimaLuceLab 2\" Visual Back for ESATTO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts ESATTO 3\" Focuser to Use 2\" Accessories\u003c\/li\u003e\n\u003cli\u003eInternal Brass Compression Ring Prevents Scratches\u003c\/li\u003e\n\u003cli\u003eMultiple Locking Screws for a Secure, Centered Fit\u003c\/li\u003e\n\u003cli\u003eThreads Directly to ESATTO 3\" Focuser Draw Tube\u003c\/li\u003e\n\u003cli\u003eIdeal for Visual Use or Cameras with 2\" Nosepieces\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\u003ePrimaLuceLab 2\" Visual Back for ESATTO 3\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 2\" Visual Back for ESATTO 3\" is the essential adapter for using standard 2\" eyepieces and accessories with your robotic focuser. This component threads directly onto the ESATTO 3\" draw tube, converting it into a secure, non-marring 2\" holder for visual observation or imaging with cameras that use a 2\" nosepiece.\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 Connection for 2\" Accessories via Brass Ring and Multi-Point Locking\u003c\/h3\u003e\n\u003cp\u003eThis visual back is engineered to protect your equipment while maintaining a rigid connection. A soft brass compression ring inside the barrel prevents the locking screws from directly touching and scratching the barrels of your eyepieces or camera nosepieces. The multiple locking screws are positioned around the collar to apply even pressure, ensuring your accessories are perfectly centered and held firmly without any tilt, even when supporting heavy 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 PrimaLuceLab 2\" Visual Back for ESATTO 3\" used for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter allows you to connect any standard \u003cstrong\u003e2\" accessory\u003c\/strong\u003e, such as a diagonal, eyepiece, or a camera with a 2\" nosepiece, to the PrimaLuceLab ESATTO 3\" robotic focuser. It's the primary component needed for visual observation with the ESATTO 3\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this visual back protect my 2\" accessories from scratches?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe PrimaLuceLab 2\" Visual Back features an \u003cstrong\u003einternal brass compression ring\u003c\/strong\u003e. When you tighten the locking screws, this soft metal ring gently clamps down on the accessory, preventing the hard steel screws from digging into and marring the barrel of your expensive eyepieces or camera nosepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the PrimaLuceLab 2\" Visual Back attach to the ESATTO 3\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe visual back threads directly onto the male threads of the ESATTO 3\" focuser's draw tube for a secure, direct-fit connection with no flexure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the PrimaLuceLab 2\" Visual Back with a heavy camera like a ZWO ASI2600MM Pro?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The adapter is designed for a secure connection. Its multiple locking screws are arranged to provide a strong, centered grip, which is essential for preventing sag or tilt when using heavier imaging trains, including cameras like the ASI2600MM Pro that are fitted with a 2\" nosepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this adapter add significant length to the ESATTO 3\" imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe PrimaLuceLab 2\" Visual Back is designed to be as low-profile as possible to conserve precious back focus. While it adds a small amount of optical length, it is a very compact solution for adding a 2\" eyepiece holder to your ESATTO 3\" focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this the correct adapter for connecting a camera with M54 threads to my ESATTO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This adapter is specifically for accessories that use a \u003cstrong\u003e2\" slip-fit nosepiece\u003c\/strong\u003e. If your camera or accessory has female M54 threads, you will need a different adapter, such as the \"PrimaLuceLab M81 to M54 Adapter with Stop Ring for ESATTO 3\"\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967864992029,"sku":"PLL-PL8410002","price":119.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-2-visual-back-for-ESATTO-3__82809.1617396020.1280.1280.jpg?v=1684346208"},{"product_id":"primalucelab-adapter-from-m110-to-m92-female-for-esatto-4","title":"PrimaLuceLab Adapter from M110 to M92 Female for ESATTO 4\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConverts ESATTO 4\" M110x1 Male Thread to a Takahashi-standard M92x1 Female Thread\u003c\/li\u003e\n\u003cli\u003eEnables Direct Connection of Takahashi Photographic Adapters, Reducers, and Flatteners\u003c\/li\u003e\n\u003cli\u003eDesigned Specifically for the PrimaLuceLab ESATTO 4\" Robotic Focuser\u003c\/li\u003e\n\u003cli\u003eIdeal for Integrating the ESATTO 4\" with Takahashi FSQ-106 Astrographs\u003c\/li\u003e\n\u003cli\u003ePrecision-Machined Aluminum with Black Anodizing for 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\u003ePrimaLuceLab Adapter from M110 to M92 Female for ESATTO 4\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter from M110 to M92 Female for ESATTO 4\" provides the essential mechanical link between the large-format ESATTO 4\" robotic focuser and Takahashi's ecosystem of photographic adapters. This component converts the M110x1 male thread on the ESATTO's draw tube into the M92x1 female thread found on the original Takahashi focuser. This allows you to attach Takahashi's highly-regarded focal reducers, flatteners, and camera adapters directly to the ESATTO 4\", combining Italian robotic focus control with premium Japanese optics.\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\u003eBridge Your ESATTO 4\" Focuser to Takahashi M92 Adapters\u003c\/h3\u003e\n\u003cp\u003eIf you've upgraded your Takahashi FSQ-106 or another large astrograph with the PrimaLuceLab ESATTO 4\" focuser, this adapter is a non-negotiable component for astrophotography. It restores the native M92x1 connection point that your existing Takahashi accessories are designed for. Instead of searching for complex, multi-part solutions, this single, precision-machined ring ensures a direct, secure fit for your complete 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\u003eMaintain a Rigid, All-Threaded Imaging Train\u003c\/h3\u003e\n\u003cp\u003eIn observatory-class imaging systems, every connection point is a potential source of flexure. This adapter eliminates the risks associated with push-fit or compression ring systems by maintaining an all-threaded connection from the focuser to your camera. Machined from aluminum and black-anodized, it provides a rigid, non-reflective interface that protects your investment in both the focuser and your optical correctors.\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\u003eSeamless Integration with the PrimaLuceLab Ecosystem\u003c\/h3\u003e\n\u003cp\u003eThis adapter is part of PrimaLuceLab's comprehensive system designed to automate your astrophotography. By enabling the ESATTO 4\" to work with Takahashi optics, you can leverage the full power of PrimaLuceLab's PLAY software and EAGLE computers to control your entire setup. This component ensures that your optical train is as robust and integrated as the electronic control system managing it.\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 PrimaLuceLab M110 to M92 adapter for the ESATTO 4\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter's sole function is to convert the \u003cstrong\u003eM110x1 male thread\u003c\/strong\u003e on the draw tube of an ESATTO 4\" focuser into an \u003cstrong\u003eM92x1 female thread\u003c\/strong\u003e. This M92 thread is the standard used by many Takahashi photographic accessories, allowing you to connect them securely to the ESATTO focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use my Takahashi focal reducer with the ESATTO 4\" focuser using this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. If your Takahashi focal reducer or flattener connects via an M92x1 male thread, this adapter will allow you to attach it directly to the ESATTO 4\" focuser. It is designed specifically for this purpose, enabling the use of Takahashi's optical correctors with PrimaLuceLab's robotic focuser.\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 focuser other than the PrimaLuceLab ESATTO 4\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is specifically designed for the PrimaLuceLab ESATTO 4\" focuser. It will not fit smaller ESATTO models (like the 2\" or 3\") or focusers from other manufacturers, as the M110x1 draw tube thread is unique to the ESATTO 4\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a Takahashi FSQ-106; is this the correct adapter to connect my camera train to an ESATTO 4\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the correct adapter. The Takahashi FSQ-106 is a primary use case for the ESATTO 4\" focuser. This M110 to M92 adapter ensures that the standard Takahashi accessory ecosystem, which you may already own for your FSQ-106, can be used with the upgraded robotic focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the M110 to M92 adapter add significant length to the optical path?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile this adapter is designed to be as mechanically thin as possible, any adapter will add some length to the optical path. You must account for its thickness when calculating your back focus distance. It is crucial to ensure your complete imaging train meets the precise spacing requirements of your flattener or reducer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is a threaded adapter like the M110 to M92 important for astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThreaded connections are critical for preventing tilt and flexure, especially with heavy cameras and filter wheels. Unlike compression rings or set screws, a direct-threaded connection like the one this adapter provides ensures that all components are perfectly coaxial and held rigidly in place, which is essential for achieving sharp stars across the entire image 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\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967866138909,"sku":"PLL-PL3600316","price":217.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M110-to-M92-female-for-ESATTO-4__48567.1617396023.1280.1280.jpg?v=1684346219"},{"product_id":"primalucelab-adapter-from-m110-to-m68-with-stop-ring-for-esatto-4","title":"PrimaLuceLab Adapter from M110 to M68 with Stop Ring for ESATTO 4\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M68x1 threaded accessories to the ESATTO 4\" focuser\u003c\/li\u003e\n\u003cli\u003eFeatures an independent stop ring for precise rotational framing\u003c\/li\u003e\n\u003cli\u003eThreads directly onto the M110 drawtube of the ESATTO 4\"\u003c\/li\u003e\n\u003cli\u003eLow-profile design minimizes consumption of backfocus\u003c\/li\u003e\n\u003cli\u003eMachined from aluminum and black anodized for 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\u003ePrimaLuceLab Adapter from M110 to M68 with Stop Ring for ESATTO 4\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter from M110 to M68 with Stop Ring for ESATTO 4\" creates a secure connection between the large M110 drawtube of the ESATTO 4\" robotic focuser and accessories using the common M68 thread. This adapter's integrated stop ring allows you to precisely orient your camera for perfect framing of any celestial target, solving a common frustration in complex 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\u003eM68 Connection and Rotational Framing for ESATTO 4\" Focusers\u003c\/h3\u003e\n\u003cp\u003eThis adapter is the essential link for attaching cameras, field flatteners, or reducers with an M68x1 female thread to the observatory-grade ESATTO 4\" focuser. Its primary function is mechanical adaptation, but its most critical feature is the independent stop ring. This allows you to achieve perfect framing by threading your camera on, rotating it to the ideal angle, and then locking it securely in place by tightening the stop ring against the focuser body. This eliminates the need to settle for a slightly off-axis composition just because that's where the threads tightened.\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 PrimaLuceLab M110 to M68 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary use is to connect imaging accessories that have a female \u003cstrong\u003eM68x1 thread\u003c\/strong\u003e to the male \u003cstrong\u003eM110x1 thread\u003c\/strong\u003e on the drawtube of the PrimaLuceLab ESATTO 4\" robotic focuser. This is common for full-frame cameras and large correctors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on the M110 to M68 adapter work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring provides \u003cstrong\u003e360-degree rotational control\u003c\/strong\u003e. You first thread the main adapter body onto the ESATTO 4\" focuser. Then, you can slightly loosen it to rotate your attached camera to the exact angle you need for framing. Finally, you tighten the separate stop ring against the focuser body, which locks your chosen orientation securely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the PrimaLuceLab M110 to M68 adapter add significant length to the optical path?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it is designed to be a \u003cstrong\u003elow-profile adapter\u003c\/strong\u003e. It consumes a minimal amount of backfocus, making it easier to integrate into imaging trains that have tight spacing requirements between the corrector and camera sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter compatible with the ESATTO 2\" or 3\" focusers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This adapter is designed exclusively for the \u003cstrong\u003eESATTO 4\" focuser\u003c\/strong\u003e, which uses a large M110x1 drawtube thread. It will not fit the smaller threads on the ESATTO 2\" or 3\" models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow can I use this adapter to frame the Horsehead Nebula (Barnard 33) vertically with my camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo frame a target like the Horsehead Nebula vertically, you would attach your camera to the adapter and then thread the adapter onto your ESATTO 4\" focuser. Before fully tightening, rotate the entire camera assembly until the nebula is oriented correctly in your live view feed. Once you have the perfect composition, simply tighten the adapter's stop ring to lock it in place for your imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI need to connect an M68 reducer to my ESATTO 4\" on a large astrograph. Is this the correct adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the exact application this adapter is designed for. It allows you to rigidly couple accessories with M68 threads, such as reducers or flatteners, to the large-aperture ESATTO 4\" focuser often used on astrographs like the Takahashi FSQ-106.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967866171677,"sku":"PLL-PL3600312","price":273.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M110-to-M68-with-stop-ring-for-ESATTO-4__44473.1617396023.1280.1280.jpg?v=1684346220"},{"product_id":"primalucelab-adapter-from-m110-to-m95-female-for-esatto-4","title":"PrimaLuceLab Adapter from M110 to M95 Female for ESATTO 4\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConverts the ESATTO 4\" focuser's M110x1 male thread to an M95x1 female thread\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for the PrimaLuceLab ESATTO 4\" Robotic Focuser\u003c\/li\u003e\n\u003cli\u003eEnables direct, secure connection of Takahashi photographic adapters\u003c\/li\u003e\n\u003cli\u003eProvides a critical link for integrating Takahashi optical systems with PrimaLuceLab 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\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\u003ePrimaLuceLab Adapter from M110 to M95 Female for ESATTO 4\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter for the ESATTO 4\" focuser converts the native M110x1 male thread on the draw tube to a versatile M95x1 female thread. This specific conversion is essential for securely attaching Takahashi photographic adapters, including those used with premier astrographs like the FSQ-106. By providing this critical M95x1 interface, the adapter fully integrates the high-payload ESATTO 4\" robotic focuser into the Takahashi optical ecosystem.\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\u003eM95x1 Thread Conversion for Takahashi Adapters on the ESATTO 4\"\u003c\/h3\u003e\n\u003cp\u003eThis adapter provides the crucial mechanical link between two high-end astrophotography systems. The ESATTO 4\" focuser is engineered for heavy imaging trains and large-aperture telescopes, while Takahashi adapters are the standard for their own optical tubes. This component bridges that gap, allowing you to use Takahashi's purpose-built camera adapters and field flatteners with the precision and remote-control capabilities of the ESATTO 4\" focuser.\u003c\/p\u003e\n\u003cp\u003eThe adapter ensures a rigid, threaded connection that eliminates flexure and maintains perfect optical alignment. For imagers who have invested in the Takahashi system but require the automated focusing of the ESATTO 4\", this adapter is not an accessory—it's a mandatory component for system integration.\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 PrimaLuceLab M110 to M95 adapter for the ESATTO 4\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts sole purpose is to convert the M110x1 male thread on the draw tube of an ESATTO 4\" focuser into an \u003cstrong\u003eM95x1 female thread\u003c\/strong\u003e. This allows you to attach camera adapters and accessories from Takahashi, which commonly use the M95x1 thread standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work with the PrimaLuceLab ESATTO 2\" or 3\" models?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This adapter is designed exclusively for the \u003cstrong\u003eESATTO 4\" focuser\u003c\/strong\u003e, which uses a large M110x1 draw tube thread. The smaller ESATTO models use different thread sizes and are not compatible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter required to use a Takahashi FSQ-106 with an ESATTO 4\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, if you intend to use Takahashi's own photographic adapters behind the focuser. The \u003cstrong\u003ePrimaLuceLab ESATTO 4\"\u003c\/strong\u003e provides the focusing mechanism, but this adapter provides the correct M95x1 threading to connect to the rest of the Takahashi-specific imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the ESATTO 4\" with this adapter improve imaging on a Takahashi telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile Takahashi focusers are excellent, the ESATTO 4\" offers robotic, temperature-compensated focusing with high payload capacity. This adapter lets you combine the optical excellence of a Takahashi scope with the advanced, automated focusing control of the PrimaLuceLab ecosystem, which is critical for maintaining sharp focus over long imaging sessions as temperatures change.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this a slip-fit or threaded connection to the ESATTO 4\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis is a fully \u003cstrong\u003ethreaded connection\u003c\/strong\u003e. It screws directly onto the M110x1 thread of the ESATTO 4\" draw tube, ensuring a rigid, flex-free attachment for your imaging equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need this M110 to M95 adapter if I'm not using Takahashi accessories?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eMost likely not. This adapter is specifically for connecting accessories that require an M95x1 female thread, which is most common in the Takahashi ecosystem. If your camera or reducer uses a different thread, PrimaLuceLab offers other adapters for the ESATTO 4\".\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\u003ePrimaLuceLab ESATTO 4\" Robotic Focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Side Thread\u003c\/td\u003e\n\u003ctd\u003eM110x1 (Male)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessory Side Thread\u003c\/td\u003e\n\u003ctd\u003eM95x1 (Female)\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\"\u003eAdapter from M110 to M95 Female for ESATTO 4\"\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\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967866269981,"sku":"PLL-PL3600319","price":217.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M110-to-M95-female-for-ESATTO-4__02917.1617396024.1280.1280.jpg?v=1684346222"},{"product_id":"primalucelab-adapter-from-m110-to-m98-with-stop-ring-for-esatto-4","title":"PrimaLuceLab Adapter from M110 to M98 with Stop Ring for ESATTO 4\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects accessories to the PrimaLuceLab ESATTO 4\" Focuser\u003c\/li\u003e\n\u003cli\u003eIncludes an independent stop ring for rotational adjustment\u003c\/li\u003e\n\u003cli\u003eEnables precise framing of celestial objects\u003c\/li\u003e\n\u003cli\u003eLow-profile design to preserve back focus\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\u003ePrimaLuceLab Adapter from M110 to M98 with Stop Ring for ESATTO 4\"\u003c\/h2\u003e\n\u003cp\u003e\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\u003eRotational Framing Control for ESATTO Imaging Trains\u003c\/h3\u003e\n\u003cp\u003eThis adapter provides the essential link between the large-format draw tube of the PrimaLuceLab ESATTO 4\" robotic focuser and the common thread size used by many astrophotography cameras and accessories. It creates a secure, rigid connection, ensuring your imaging train remains free of flexure.\u003c\/p\u003e\n\u003cp\u003eThe key feature is the integrated stop ring, which operates independently of the main adapter thread. This allows you to thread your camera or accessory into position, then adjust its rotational angle for perfect framing before locking it securely in place. This eliminates the need to repeatedly thread and unthread your camera to align your sensor with your target.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Connection:\u003c\/strong\u003e Creates a solid, threaded attachment between the ESATTO 4\" focuser and your imaging accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Rotational Adjustment:\u003c\/strong\u003e The independent stop ring lets you perfectly frame celestial objects by setting the camera angle without introducing tilt.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimal Optical Path:\u003c\/strong\u003e Engineered to add very little length to the imaging train, preserving critical back focus for correctors, filter wheels, or off-axis guiders.\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 PrimaLuceLab Adapter for ESATTO 4\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary purpose is to connect an astrophotography camera or accessory that has a male accessory thread to the large female draw tube thread of the ESATTO 4\" robotic focuser. It also includes a stop ring for precise rotational framing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on this PrimaLuceLab adapter help with astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring is a separate, lockable collar. It allows you to thread your camera on, back it off slightly to achieve the perfect rotational angle for your target, and then tighten the stop ring against your camera to lock that position. This is crucial for composing mosaics or aligning your sensor to a specific orientation in the sky.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter designed to be low-profile?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the adapter is designed to consume a minimal amount of optical path. This helps preserve as much back focus as possible, which is critical when using additional accessories like focal reducers, filter wheels, and off-axis guiders that have specific spacing requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen imaging a large target like the North American Nebula (NGC 7000), how does this adapter help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor large targets like the North American Nebula (NGC 7000), framing is critical. The adapter's stop ring allows you to rotate your camera sensor to fit the nebula's irregular shape within your field of view perfectly, ensuring you capture the entire object as intended without having to crop the final image.\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 a telescope like a Takahashi FSQ-106?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can use this adapter with any telescope, including a Takahashi FSQ-106, provided that the telescope is equipped with a PrimaLuceLab ESATTO 4\" robotic focuser. The adapter is specific to the ESATTO 4\" and will not thread onto other focusers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this PrimaLuceLab adapter fit other focusers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is specifically designed with threads to match the PrimaLuceLab ESATTO 4\" focuser's draw tube. It is not compatible with other models of ESATTO focusers or focusers from other manufacturers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967866368285,"sku":"PLL-PL3600322","price":273.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M110-to-M98-with-stop-ring-for-ESATTO-4__34762.1617396024.1280.1280.jpg?v=1684346224"},{"product_id":"primalucelab-t2-50-8mm-photographic-adapter","title":"PrimaLuceLab T2-50.8mm Photographic Adapter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects T2 (M42x0.75) threaded cameras and accessories\u003c\/li\u003e\n\u003cli\u003eFits standard 50.8mm (2-inch) focusers and visual backs\u003c\/li\u003e\n\u003cli\u003eFeatures a wide clear aperture to prevent vignetting with large sensors\u003c\/li\u003e\n\u003cli\u003eInternal M48 threads accept standard 2-inch astronomy filters\u003c\/li\u003e\n\u003cli\u003eSolid, single-piece metal construction with 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\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\u003ePrimaLuceLab T2-50.8mm Photographic Adapter\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab T2-50.8mm Photographic Adapter connects your T2 (M42x0.75) threaded camera to any standard 2-inch (50.8mm) focuser. This all-metal adapter includes internal M48 threads for 2-inch filters and features a wide clear aperture designed to eliminate vignetting on large-sensor cameras.\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 M42x0.75 T2 Threads to Any 50.8mm Focuser\u003c\/h3\u003e\n\u003cp\u003eThis adapter serves as the essential link between the universal T2 female thread (M42x0.75) found on most astronomy cameras and accessories and the larger 50.8mm (2-inch) format of modern focusers. It allows you to securely mount your imaging equipment for a rigid, flex-free connection.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDSLR\/Mirrorless Cameras:\u003c\/strong\u003e Attach a T2-ring specific to your camera brand, then thread it directly onto this adapter to use your camera body at prime focus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAstronomy Cameras:\u003c\/strong\u003e Most dedicated CMOS and CCD cameras already feature a female T2 thread, allowing this adapter to be screwed directly onto the camera body.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccessories:\u003c\/strong\u003e Connect filter wheels, off-axis guiders, and other T2-threaded accessories into your 2-inch imaging train.\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\u003eWide-Aperture Design: Eliminate Vignetting on Large Sensors\u003c\/h3\u003e\n\u003cp\u003eUnlike standard T-adapters that can have a narrow internal bore, this photographic adapter is engineered with a large clear aperture. This design ensures the entire light cone from the telescope reaches your camera sensor without being clipped at the edges.\u003c\/p\u003e\n\u003cp\u003eFor imagers using cameras with APS-C or larger sensors, this is critical. A wider aperture prevents vignetting—the dimming of the corners of your image—resulting in evenly illuminated frames and simplifying post-processing.\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 48mm Filter Threads and All-Metal Build\u003c\/h3\u003e\n\u003cp\u003eThe telescope side of the adapter features a standard M48 female thread, allowing you to attach any 2-inch (50.8mm) filter. This lets you place light pollution, nebula, or color filters directly in the light path without needing a separate filter drawer.\u003c\/p\u003e\n\u003cp\u003eConstructed entirely from metal with a durable black anodized finish, the adapter is built for rigidity and longevity. The matte black interior helps to absorb stray light, protecting image contrast.\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 PrimaLuceLab T2-50.8mm adapter with my DSLR camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo use this adapter with a DSLR or mirrorless camera, you first need a \u003cstrong\u003eT2-ring\u003c\/strong\u003e (also called a T-ring) made for your specific camera mount (e.g., Canon EOS, Nikon F, Sony E). Remove the camera lens, attach the T2-ring to the camera body, and then screw this PrimaLuceLab adapter into the T2-ring. You can then insert the entire assembly into any 2-inch focuser.\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 wide aperture on the PrimaLuceLab T2-50.8mm adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe wide internal aperture prevents \u003cstrong\u003evignetting\u003c\/strong\u003e, which is the darkening of the corners of an image. This is a common problem when using cameras with large sensors (like APS-C or full-frame) with adapters that have a narrow internal diameter. The PrimaLuceLab adapter ensures the full, un-clipped light cone from the telescope reaches the sensor for even illumination across the entire frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 2-inch filters with the PrimaLuceLab T2-50.8mm adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The adapter has a female \u003cstrong\u003eM48 thread\u003c\/strong\u003e on the telescope side of the barrel. This allows you to screw in any standard 2-inch (50.8mm) astronomy filter, such as a light pollution filter, a UHC filter for nebulae, or an IR\/UV cut filter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the PrimaLuceLab T2-50.8mm adapter work with my off-axis guider and ZWO ASI294MC Pro camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this adapter is well-suited for that setup. The ZWO ASI294MC Pro typically has a female T2 thread. You can connect it to a T2-threaded off-axis guider, and then use this adapter as the final piece to connect the entire imaging train to your 2-inch focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy choose the PrimaLuceLab T2-50.8mm adapter over a standard 1.25\" T-adapter for my Celestron 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAn 8\" SCT gathers a large cone of light. A 1.25\" adapter would severely restrict this light path, causing significant vignetting on all but the smallest sensor cameras. The \u003cstrong\u003ePrimaLuceLab T2-50.8mm adapter\u003c\/strong\u003e uses the larger 2-inch format to preserve the full, illuminated field from your telescope, making it a much better choice for astrophotography with an SCT.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the PrimaLuceLab T2-50.8mm adapter made of?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter is built entirely from \u003cstrong\u003emetal\u003c\/strong\u003e and features a black anodized finish. This ensures a rigid, durable connection that will not flex or sag under the weight of a camera, and the matte black interior minimizes internal reflections.\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\u003eEAN Code\u003c\/td\u003e\n\u003ctd\u003e8059020773847\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\"\u003ePrimaLuceLab T2-50.8mm Photographic 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\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967866499357,"sku":"PLL-PL3304226","price":34.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-T2-50-8mm-photographic-adapter__70429.1617396024.1280.1280.jpg?v=1684346222"},{"product_id":"primalucelab-m48-50-8mm-photographic-adapter","title":"PrimaLuceLab M48-50.8mm Photographic Adapter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts M48x0.75 Threads to 2\" (50.8mm) Barrels\u003c\/li\u003e\n\u003cli\u003e44mm Clear Aperture Prevents Vignetting\u003c\/li\u003e\n\u003cli\u003eInternal M48 Threads for 2\" Filters\u003c\/li\u003e\n\u003cli\u003eDurable Black Anodized 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\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\u003ePrimaLuceLab M48-50.8mm Photographic Adapter\u003c\/h2\u003e\n      \u003cp\u003eThe PrimaLuceLab M48-50.8mm Photographic Adapter is a fundamental component for connecting any camera or accessory with an M48x0.75 female thread to a standard 50.8mm (2-inch) focuser or visual back. Its design incorporates a full 44mm clear aperture to illuminate large sensors without vignetting and includes an internal M48 thread to accept any standard 2-inch filter.\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\u003eConnect M48 Cameras to Any 50.8mm (2\") Focuser\u003c\/h3\u003e\n      \u003cp\u003eThis adapter provides a secure, direct connection for your entire M48-based imaging train. Whether you are using a cooled astronomy camera with a native M48 female thread or a DSLR\/mirrorless camera equipped with an M48 T-ring, this adapter allows you to insert your camera into any 2-inch focuser just like an eyepiece. The solid metal construction and black anodized finish ensure a rigid, non-reflective light path.\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 44mm Clear Aperture with Integrated 48mm Filter Threads\u003c\/h3\u003e\n      \u003cp\u003eA key feature of this adapter is its 44mm free aperture, which is critical for preventing the clipping of the light cone when using cameras with large, full-frame sensors. Unlike adapters with smaller internal diameters, this design ensures your sensor is fully illuminated. The front of the adapter is also threaded for standard 48mm (2-inch) filters, allowing you to add light pollution, narrowband, or color filters to your imaging setup without needing a separate filter cell.\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 PrimaLuceLab M48-50.8mm adapter used for?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter's primary function is to connect a camera or accessory that has a female \u003cstrong\u003eM48x0.75 thread\u003c\/strong\u003e to a telescope's \u003cstrong\u003e50.8mm (2-inch) focuser\u003c\/strong\u003e. This allows you to use M48-threaded imaging equipment, such as cooled astro cameras or DSLRs with M48 rings, with any standard 2-inch visual back.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the M48-50.8mm adapter with my DSLR camera?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eTo use this adapter with a DSLR or mirrorless camera, you first need to remove the camera lens. Then, attach an \u003cstrong\u003eM48 T-ring\u003c\/strong\u003e specific to your camera's bayonet mount. Once the T-ring is on your camera, you can screw this PrimaLuceLab adapter directly onto it, creating a secure 2-inch barrel for insertion into your telescope's focuser.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill the PrimaLuceLab M48-50.8mm adapter cause vignetting with my full-frame camera?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this adapter is specifically designed to prevent vignetting with large sensors. It features a \u003cstrong\u003e44mm clear aperture\u003c\/strong\u003e, which is large enough to pass the full light cone from the telescope to a full-frame sensor without clipping the edges of the field of view.\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 PrimaLuceLab adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. The telescope-facing side of the adapter has a standard \u003cstrong\u003eM48 female thread\u003c\/strong\u003e. This allows you to screw in any standard 50.8mm (2-inch) astronomy filter, such as a light pollution filter, UHC filter, or narrowband filter, directly into the adapter.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI have a cooled astronomy camera with an M48 thread. Will this adapter work?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. If your cooled camera has a female M48x0.75 thread on its front plate, this adapter will screw directly into it. This provides a simple and secure way to mount your camera into any 2-inch focuser for imaging.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I attach a filter wheel to my telescope using this M48 adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, this adapter can be used to connect other accessories with M48 threads, such as filter wheels or off-axis guiders, to your focuser. Simply thread the adapter onto the M48 port of your accessory to create a 2-inch nosepiece for your imaging train.\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 Connection\u003c\/td\u003e\n\u003ctd\u003e50.8mm (2\") Barrel\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCamera\/Accessory Connection\u003c\/td\u003e\n\u003ctd\u003eM48x0.75 Female Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFilter Thread\u003c\/td\u003e\n\u003ctd\u003eM48 (for 2\" filters)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eClear Aperture\u003c\/td\u003e\n\u003ctd\u003e44mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eBlack Anodized Metal\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eEAN Code\u003c\/td\u003e\n\u003ctd\u003e8059020773854\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\"\u003eM48-50.8mm Photographic 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\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967866630429,"sku":"PLL-PL3304826","price":34.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-M48-50-8mm-photographic-adapter__05670.1617396024.1280.1280.jpg?v=1684346224"},{"product_id":"primalucelab-5mm-t2-extension","title":"PrimaLuceLab 5mm T2 Extension","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eProvides a fixed 5mm of optical path extension\u003c\/li\u003e\n\u003cli\u003eStandard T2 male and female threads (M42x0.75)\u003c\/li\u003e\n\u003cli\u003eBlack anodized aluminum construction\u003c\/li\u003e\n\u003cli\u003eKnurled exterior for enhanced grip\u003c\/li\u003e\n\u003cli\u003eInternal surfaces are blackened to minimize 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\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\u003ePrimaLuceLab 5mm T2 Extension\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 5mm T2 Extension provides a solid, single-piece 5mm spacer with T2 male and female threads, essential for correcting the backfocus distance in an imaging train that uses field flatteners or focal reducers.\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 5mm Building Block for Perfect Backfocus\u003c\/h3\u003e\n\u003cp\u003eAchieving the precise spacing specified by your corrector is non-negotiable for sharp, round stars across the entire frame. This 5mm extension serves as a rigid, reliable building block for hitting that exact distance. Unlike variable spacers which can introduce tilt, this fixed-length extension ensures perfect optical alignment.\u003c\/p\u003e\n\u003cp\u003eIt can be combined with other T2 extensions and thin spacers from PrimaLuceLab, allowing you to build the exact length your imaging train requires. By stacking different components, you can achieve sub-millimeter precision, ensuring your camera sensor is placed at the optimal focal plane.\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 Grip and Stray Light Control\u003c\/h3\u003e\n\u003cp\u003ePrimaLuceLab has engineered this T2 extension for practical use in the field. The exterior features a knurled surface, providing a secure grip for easy tightening or removal, even when wearing gloves on a cold night. This simple detail prevents frustrating moments in the dark when threads become too tight.\u003c\/p\u003e\n\u003cp\u003eBoth the internal and external surfaces are black anodized. While the external finish adds durability, the internal blackening is critical for imaging. It absorbs stray light, preventing internal reflections that can reduce contrast and introduce artifacts into your final images.\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 PrimaLuceLab 5mm T2 Extension primarily used for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe PrimaLuceLab 5mm T2 Extension is used to add exactly \u003cstrong\u003e5mm of spacing\u003c\/strong\u003e into an optical train. This is most commonly required to achieve the correct backfocus distance between a focal reducer or field flattener and the camera sensor, which is critical for achieving a flat, sharp field of view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow can I achieve a distance other than 5mm with this extension?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis 5mm extension is part of a modular system. You can screw multiple PrimaLuceLab T2 extensions together or add their T2 spacers in between them to create a custom total length. This allows you to build up the precise distance your setup needs with sub-millimeter accuracy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the PrimaLuceLab 5mm T2 Extension cause reflections in my images?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it is designed to prevent reflections. The interior of the extension is black anodized, which creates a non-reflective matte surface. This absorbs stray light within the optical tube, helping to maintain high image contrast.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the PrimaLuceLab 5mm T2 Extension compatible with M48 threads?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNot directly. This extension uses the smaller \u003cstrong\u003eT2 (M42x0.75)\u003c\/strong\u003e thread standard. To connect it to a component with a wider M48 thread, you will need a separate M48-to-T2 adapter, such as an M48 female to T2 male adapter, to step down the thread size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the PrimaLuceLab 5mm T2 Extension with my Celestron EdgeHD 8\" and a ZWO camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a common application. Celestron EdgeHD systems have a specific backfocus requirement, especially when using a reducer. If your combination of ZWO camera, filter wheel, and off-axis guider leaves you approximately 5mm short of the required distance, this extension is the perfect component to add to the T2-threaded portion of your imaging train to make up the difference.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the knurling on the PrimaLuceLab 5mm T2 Extension?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe knurled (grooved) outer ring provides a \u003cstrong\u003esecure gripping surface\u003c\/strong\u003e. This makes it much easier to thread the extension on and off, especially in cold or damp conditions or when wearing gloves. It prevents the smooth metal surfaces from becoming difficult to separate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\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\"\u003e5mm T2 Extension\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\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967866761501,"sku":"PLL-PL3304205","price":27.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-5mm-T2-extension__46969.1617396025.1280.1280.jpg?v=1684346225"},{"product_id":"primalucelab-7mm-t2-extension","title":"PrimaLuceLab 7mm T2 Extension","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eProvides 7mm of fixed optical spacing\u003c\/li\u003e\n\u003cli\u003eStandard T2 (M42x0.75) male and female threads\u003c\/li\u003e\n\u003cli\u003eKnurled exterior for a secure grip, even with gloves\u003c\/li\u003e\n\u003cli\u003eBlack anodized interior and exterior to prevent reflections\u003c\/li\u003e\n\u003cli\u003eAll-metal construction for rigidity\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\u003ePrimaLuceLab 7mm T2 Extension\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 7mm T2 Extension provides a fixed 7mm of spacing for precisely setting the backfocus in your imaging train. This all-metal adapter features male and female T2 threads, allowing you to place exactly 7mm of distance between your corrector, camera, or other T2-threaded 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\u003eAchieving 7mm of Critical Backfocus\u003c\/h3\u003e\n\u003cp\u003eCorrect backfocus is non-negotiable for achieving sharp stars from edge to edge, and this extension provides a solid 7mm distance to help you hit that target. It can be screwed together with other T2 extensions or combined with fine-tuning spacers, allowing you to build up a custom spacing solution in precise increments.\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\u003eKnurled Grip and Anti-Reflection Anodizing\u003c\/h3\u003e\n\u003cp\u003eThe extension is machined from metal and features a knurled exterior, providing a secure grip for easy tightening or removal, even with gloves on. Both the interior and exterior surfaces are black anodized to absorb stray light and prevent internal reflections from degrading your image contrast.\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 PrimaLuceLab 7mm T2 Extension to reach the 55mm backfocus on my field flattener?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis 7mm extension is one component you would use to build up the required 55mm distance. You would combine it with your camera's native T-ring depth (e.g., 11mm), any off-axis guider (e.g., 17.5mm), and other T2 spacers to precisely equal the 55mm required by your flattener.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm connecting my ZWO camera to a Celestron reducer; is the PrimaLuceLab 7mm T2 Extension all I need?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt's unlikely to be the only piece you need. The 7mm extension provides part of the required spacing. You must calculate the total distance required by your reducer and subtract the camera's flange distance and the thickness of any other adapters to see what remaining gap the 7mm extension helps fill.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I stack multiple PrimaLuceLab 7mm T2 Extensions?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, these extensions are designed to be screwed together. You can stack them to achieve multiples of 7mm (e.g., 14mm, 21mm). For more precise adjustments, you can add other T2 spacers between them.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the knurling on the PrimaLuceLab 7mm T2 Extension?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe knurled finish provides a textured surface for a better grip. This makes it much easier to thread the extension on and off, especially in cold weather when you might be wearing gloves or when threads are tight.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the inside of the PrimaLuceLab 7mm T2 Extension cause reflections in my images?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the interior is black anodized specifically to create a non-reflective matte surface. This prevents stray light from bouncing around inside your imaging train and reducing the contrast of your final image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat threads does the PrimaLuceLab 7mm T2 Extension use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt uses the standard \u003cstrong\u003eT2 thread (M42x0.75mm)\u003c\/strong\u003e. One side has a male T2 thread, and the other has a female T2 thread, allowing it to be inserted anywhere in a standard T2-threaded imaging train.\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\u003eLength\u003c\/td\u003e\n\u003ctd\u003e7mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThreads\u003c\/td\u003e\n\u003ctd\u003eT2 (M42x0.75mm) Male\/Female\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAnodized Aluminum\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\"\u003ePrimaLuceLab 7mm T2 Extension\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\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967866794269,"sku":"PLL-PL3304207","price":27.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-7mm-T2-extension__63952.1617396025.1280.1280.jpg?v=1684346235"},{"product_id":"primalucelab-9mm-t2-extension","title":"PrimaLuceLab 9mm T2 Extension","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eProvides 9mm of fixed spacing\u003c\/li\u003e\n\u003cli\u003eT2 threads (male on one side, female on the other)\u003c\/li\u003e\n\u003cli\u003eBlack anodized metal construction\u003c\/li\u003e\n\u003cli\u003eKnurled exterior for a secure grip\u003c\/li\u003e\n\u003cli\u003eStackable with other T2 extensions and spacers\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\u003ePrimaLuceLab 9mm T2 Extension\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 9mm T2 Extension adds a fixed 9mm of spacing to your imaging train, essential for setting the precise backfocus required by field flatteners and focal reducers. By combining this 9mm extension with optional 1mm and 0.5mm spacers, you can create custom lengths in precise 0.5mm increments to perfectly match your camera and corrector's optical prescription.\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 9mm of Precise Backfocus with T2 Threads\u003c\/h3\u003e\n\u003cp\u003eThis extension is engineered to solve a critical imaging problem: achieving the exact distance from your corrector lens to your camera sensor. Made from black-anodized metal to prevent internal reflections, this rigid 9mm spacer ensures your components remain perfectly collinear. An external knurled grip provides excellent leverage, making it easy to tighten or remove the extension, even when wearing gloves on a cold night.\u003c\/p\u003e\n\u003cp\u003eWhile a single 9mm extension is fixed, its primary function is as a component in a modular system. You can screw multiple extensions together or insert thin T2 spacers between them, allowing you to build the exact spacing your optical train demands without introducing any flexure.\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 PrimaLuceLab 9mm T2 Extension used for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt is primarily used to \u003cstrong\u003eadd a precise 9mm of distance\u003c\/strong\u003e within an astrophotography imaging train. This is crucial for achieving the correct backfocus distance specified by a focal reducer, field flattener, or coma corrector to ensure sharp stars across the entire field of view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I stack multiple PrimaLuceLab 9mm T2 extensions?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. These extensions are designed to be screwed together to create longer spacing. For example, two 9mm extensions can be combined to create an 18mm extension. For finer adjustments, you can also add PrimaLuceLab's 0.5mm and 1mm T2 spacers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow would I get a spacing of 10.5mm with this PrimaLuceLab T2 extension?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo achieve a custom spacing like 10.5mm, you would combine this \u003cstrong\u003e9mm T2 Extension\u003c\/strong\u003e with other available spacers. The combination would be:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOne 9mm T2 Extension\u003c\/li\u003e\n\u003cli\u003eOne 1mm T2 Spacer\u003c\/li\u003e\n\u003cli\u003eOne 0.5mm T2 Spacer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis modularity allows you to build virtually any backfocus distance you need in 0.5mm steps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy Celestron EdgeHD 8\" with its 0.7x reducer needs 105mm of backfocus. How does this 9mm extension help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 105mm backfocus for the EdgeHD 8\" reducer is a common requirement. The PrimaLuceLab 9mm T2 Extension is one of the building blocks you would use to reach that total distance. You would measure the existing distance provided by your camera, off-axis guider, and filter wheel, and then use a combination of extensions, including this 9mm piece, to make up the remaining difference to hit exactly 105mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the threads on the PrimaLuceLab 9mm T2 Extension?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe extension uses the standard \u003cstrong\u003eT2 thread\u003c\/strong\u003e, which is also known as M42x0.75. It features male T2 threads on one side and female T2 threads on the other, allowing it to be inserted between any two T2-threaded components like a camera nosepiece and a corrector.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy does the PrimaLuceLab 9mm T2 Extension have a knurled grip?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe knurled (grooved) texture on the outside of the extension provides a \u003cstrong\u003esecure gripping surface\u003c\/strong\u003e. This makes it much easier to screw and unscrew the extension by hand, especially in cold or dark conditions where getting a firm grip on a smooth metal surface can be difficult.\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\u003e9mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThreads\u003c\/td\u003e\n\u003ctd\u003eT2 (M42x0.75) Male and Female\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eMetal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eBlack Anodized with Knurled Grip\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\"\u003e9mm T2 Extension\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\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967866827037,"sku":"PLL-PL3304209","price":34.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-9mm-T2-extension__55547.1641520623.1280.1280.jpg?v=1684346237"},{"product_id":"primalucelab-t2-spacer-1mm","title":"PrimaLuceLab T2 Spacer 1mm","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdds exactly 1mm of spacing to any T2 thread connection\u003c\/li\u003e\n\u003cli\u003eUltra-thin ring for fine-tuning back focus\u003c\/li\u003e\n\u003cli\u003eUsed with T2 extension tubes for precise optical train length\u003c\/li\u003e\n\u003cli\u003eSolves spacing issues for field flatteners and reducers\u003c\/li\u003e\n\u003cli\u003eDrops into female T2 threads before connecting male accessory\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\u003ePrimaLuceLab T2 Spacer 1mm\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab T2 Spacer provides exactly 1mm of additional length to your optical train, allowing you to achieve the precise back focus required by field flatteners, reducers, and other correctors. This simple, thin spacer ring is the solution for when standard T2 extension tubes get you close to the target distance, but not exactly there.\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 Back Focus with 1mm Precision\u003c\/h3\u003e\n\u003cp\u003eModern optical correctors demand spacing accuracy often within a millimeter to deliver flat fields and sharp stars to the edge of the frame. The PrimaLuceLab T2 Spacer is designed to bridge the final gap that fixed-length extension tubes cannot. By simply dropping this 1mm ring into any female T2 thread before attaching the male-threaded accessory, you can incrementally adjust your total spacing to hit the exact measurement your corrector's manufacturer specifies.\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 PrimaLuceLab T2 Spacer 1mm used for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe PrimaLuceLab T2 Spacer is used for making very small, precise adjustments to the total length of an imaging train. It adds exactly \u003cstrong\u003e1mm\u003c\/strong\u003e of distance, which is critical for achieving the perfect back focus required by accessories like field flatteners and focal reducers for sharp, aberration-free stars across the entire image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen would I need a 1mm spacer instead of a longer T2 extension tube?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou need the \u003cstrong\u003ePrimaLuceLab T2 Spacer 1mm\u003c\/strong\u003e when your combination of standard T2 extension tubes gets you very close to, but not exactly on, your target back focus distance. For example, if you need 55mm of back focus and your current setup gives you 54mm, this 1mm spacer provides the final, precise adjustment that a longer tube would overshoot.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the PrimaLuceLab T2 Spacer 1mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is simple. You just drop the \u003cstrong\u003ePrimaLuceLab T2 Spacer 1mm\u003c\/strong\u003e into the female T2 threads of your focuser, camera, or extension tube. Then, you carefully thread the male T2 accessory into the same port. The spacer sits between the shoulder of the male thread and the top of the female port, creating the 1mm gap.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is precise back focus so critical for my telescope's field flattener?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA field flattener is designed to work at one exact distance from the camera sensor. If the spacing is off by even a millimeter, you will see elongated or bloated stars in the corners of your images of objects like the Andromeda Galaxy (M31). The \u003cstrong\u003ePrimaLuceLab T2 Spacer 1mm\u003c\/strong\u003e allows you to fine-tune this distance to achieve a perfectly flat field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the PrimaLuceLab T2 Spacer 1mm help me reach focus with an off-axis guider?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. An off-axis guider (OAG) requires the main imaging camera and the guide camera to be parfocal (reach focus at the same time). Sometimes, the guide camera's focus point is slightly different. A \u003cstrong\u003ePrimaLuceLab T2 Spacer 1mm\u003c\/strong\u003e can be used in either the main imaging path or the guider path to slightly shift the focus point, helping you achieve sharp focus on both cameras simultaneously.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the PrimaLuceLab T2 Spacer 1mm compatible with non-PrimaLuceLab T2 accessories?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. T2 thread (also known as M42x0.75) is a universal standard in astrophotography. The \u003cstrong\u003ePrimaLuceLab T2 Spacer 1mm\u003c\/strong\u003e will work with any T2-threaded accessory from any manufacturer, as long as the threads are standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967870857501,"sku":"PLL-PL3304201","price":17.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-T2-spacer-1mm__05697.1641520631.1280.1280.jpg?v=1684346297"},{"product_id":"primalucelab-t2-spacer-0-5mm","title":"PrimaLuceLab T2 Spacer 0.5mm","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdds precisely 0.5mm of optical path length\u003c\/li\u003e\n\u003cli\u003eDesigned for T2 (M42x0.75) threaded systems\u003c\/li\u003e\n\u003cli\u003eEnables fine adjustments to achieve critical back focus\u003c\/li\u003e\n\u003cli\u003eStackable with other spacers for custom thicknesses\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\u003ePrimaLuceLab T2 Spacer 0.5mm\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab T2 Spacer adds exactly 0.5mm of optical path length, providing the micro-adjustment needed to achieve perfect back focus in critical imaging setups with field flatteners or focal reducers.\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-Tuning Back Focus: The Role of a 0.5mm T2 Spacer\u003c\/h3\u003e\n\u003cp\u003eModern optical correctors demand spacing accuracy that standard extension tubes alone cannot provide. This 0.5mm T2 spacer is the solution for that final, critical adjustment. By inserting it between your other T2 extensions, you can precisely dial in the distance between your corrector lens and sensor plane, ensuring sharp stars across the entire frame.\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\u003eStacking for Custom Spacing: 0.5mm vs. 1mm Increments\u003c\/h3\u003e\n\u003cp\u003eWhile PrimaLuceLab also offers a 1mm T2 spacer, this 0.5mm version provides the highest level of precision. For imagers needing to hit a back focus target with sub-millimeter accuracy, the 0.5mm spacer is essential. You can stack multiple spacers or combine them with the 1mm version to build any required distance, such as 1.5mm or 2.5mm, without being limited to whole-millimeter steps.\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\"\u003eWhen would I need the PrimaLuceLab T2 Spacer 0.5mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou need a \u003cstrong\u003ePrimaLuceLab T2 Spacer 0.5mm\u003c\/strong\u003e when your existing T2 extension tubes and accessories get you close to, but not exactly on, the required back focus for your flattener or reducer. If your flattener requires 55mm of spacing and your setup provides 54.5mm, this 0.5mm spacer is the perfect component to achieve a perfectly flat field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the PrimaLuceLab 0.5mm T2 Spacer threaded?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this is a slip-in spacer, not a threaded ring. It is designed to be placed between two T2-threaded components (like an extension tube and a camera adapter). When you tighten the threaded components, the spacer is held securely in place by compression.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow many PrimaLuceLab 0.5mm T2 Spacers can I stack?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can stack several \u003cstrong\u003ePrimaLuceLab 0.5mm T2 Spacers\u003c\/strong\u003e to achieve a desired thickness. For larger adjustments, it's generally better to use a solid T2 extension tube to get close and then use one or two spacers for the final fine-tuning. This ensures maximum rigidity in the optical train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this 0.5mm T2 spacer cause vignetting in my f\/4 telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The spacer has a clear aperture designed for the T2 (M42) format and will not introduce any additional vignetting beyond what is inherent in your T2-threaded adapters. It maintains the full light cone diameter provided by the rest of your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between this 0.5mm spacer and PrimaLuceLab's 1mm version?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis \u003cstrong\u003e0.5mm T2 spacer\u003c\/strong\u003e offers finer adjustment for higher precision. The 1mm version is for larger, yet still precise, adjustments. Many imagers keep both on hand to create any custom spacing in 0.5mm increments (e.g., combining one of each to make a 1.5mm spacer).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the PrimaLuceLab T2 Spacer to fix camera tilt?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this spacer is not designed for tilt adjustment. It provides a uniform 0.5mm of spacing across the entire field. For correcting sensor tilt, you would need a dedicated camera tilt adjuster.\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\u003eThickness\u003c\/td\u003e\n\u003ctd\u003e0.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFormat\u003c\/td\u003e\n\u003ctd\u003eT2 (M42x0.75)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSlip-in Spacer\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\"\u003ePrimaLuceLab T2 Spacer 0.5mm\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\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967870890269,"sku":"PLL-PL3304200","price":17.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-T2-spacer-0-5mm__07419.1641520639.1280.1280.jpg?v=1684346298"},{"product_id":"primalucelab-5mm-m48-extension","title":"PrimaLuceLab 5mm M48 Extension","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdds a precise 5mm of optical length\u003c\/li\u003e\n\u003cli\u003eStandard M48x0.75 male and female threads\u003c\/li\u003e\n\u003cli\u003eKnurled exterior for a secure grip\u003c\/li\u003e\n\u003cli\u003eBlack-anodized aluminum construction minimizes reflections\u003c\/li\u003e\n\u003cli\u003ePart of a modular system for custom spacing\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\u003ePrimaLuceLab 5mm M48 Extension\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 5mm M48 Extension is a fundamental component for any M48x0.75 imaging train, providing a rigid, repeatable 5mm of spacing to achieve critical back focus for flatteners, reducers, and off-axis guiders.\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 5mm Spacing for M48 Imaging Trains\u003c\/h3\u003e\n\u003cp\u003eThis extension solves a common problem in astrophotography: hitting the exact back focus distance specified by your optical corrector. Machined from metal with a black anodized finish, it adds exactly 5mm of length between any two components with M48 threads, such as a camera and a filter wheel.\u003c\/p\u003e\n\u003cp\u003eThe interior is also anodized black to prevent stray light from reflecting and reducing contrast in your images. For easy handling in the dark, the exterior features a knurled grip, which is especially useful when tightening or loosening the extension with gloves on.\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 Modular System for Precise Back Focus Accuracy\u003c\/h3\u003e\n\u003cp\u003eWhile this component provides a fixed 5mm length, it is designed as part of PrimaLuceLab's comprehensive M48 spacing system. You can screw multiple extensions together to create longer, rigid spacers as needed for your specific setup.\u003c\/p\u003e\n\u003cp\u003eFor ultimate precision, this 5mm extension can be combined with PrimaLuceLab's fine-tuning spacers (sold separately). This modular approach allows you to build a custom spacer to the exact length required by your optics, eliminating guesswork and ensuring your stars are sharp from edge to edge.\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\"\u003eMy corrector requires 55mm of back focus, but my setup is at 49mm. How does the PrimaLuceLab 5mm M48 Extension help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis is the perfect scenario for the \u003cstrong\u003ePrimaLuceLab 5mm M48 Extension\u003c\/strong\u003e. By adding this extension into your M48 imaging train, you increase the total distance by exactly 5mm, bringing your 49mm spacing up to the required 55mm. This single component corrects the spacing error precisely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow can I use the PrimaLuceLab 5mm M48 Extension to correct the spacing for my ZWO ASI camera and a reducer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eMost popular reducers require 55mm of back focus. A typical ZWO cooled camera has a native back focus of 17.5mm (or 6.5mm). If the adapters included with your camera don't add up to exactly 55mm, you will need spacers. The \u003cstrong\u003ePrimaLuceLab 5mm M48 Extension\u003c\/strong\u003e is a common component used to close the remaining gap in the optical train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the PrimaLuceLab 5mm M48 Extension different from a generic spacer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe key differences are the build quality and system integration. The PrimaLuceLab extension features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA knurled grip:\u003c\/strong\u003e This makes it much easier to tighten and loosen, especially in cold weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal and external anodizing:\u003c\/strong\u003e Reduces the risk of internal reflections that can degrade image contrast.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModular design:\u003c\/strong\u003e It's designed to work seamlessly with other PrimaLuceLab extensions and fine-tuning spacers.\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 stack multiple PrimaLuceLab 5mm M48 Extensions together?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The extensions feature male threads on one side and female threads on the other, allowing you to screw them together. For example, stacking two 5mm extensions will give you a rigid 10mm spacer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the inside of the PrimaLuceLab 5mm M48 Extension black anodized?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Both the internal and external surfaces are black anodized. The internal treatment is crucial for preventing stray light from reflecting off the spacer walls and onto your camera sensor, which helps maintain high-contrast images.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the knurled grip on the PrimaLuceLab 5mm M48 Extension for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe knurled grip provides a textured surface that makes the extension easier to handle and turn by hand. This is a significant ergonomic improvement over smooth-sided spacers, which can be difficult to unscrew if they become too tight, especially when you are wearing gloves.\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\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Type\u003c\/td\u003e\n\u003ctd\u003eM48x0.75 (Male on one side, Female on the other)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eMetal, Black Anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExterior\u003c\/td\u003e\n\u003ctd\u003eKnurled Grip\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\"\u003e5mm M48 Extension\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\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967871086877,"sku":"PLL-PL3304805","price":41.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-5mm-M48-extension__79490.1617396026.1280.1280.jpg?v=1684346300"},{"product_id":"primalucelab-7mm-m48-extension","title":"PrimaLuceLab 7mm M48 Extension","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eProvides a fixed 7mm optical path extension\u003c\/li\u003e\n\u003cli\u003eStandard M48x0.75 male and female threads\u003c\/li\u003e\n\u003cli\u003eBlack anodized aluminum construction minimizes reflections\u003c\/li\u003e\n\u003cli\u003eExternal knurled ring for enhanced grip\u003c\/li\u003e\n\u003cli\u003eStackable with other M48 extensions and spacers\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\u003ePrimaLuceLab 7mm M48 Extension\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 7mm M48 Extension provides a fixed 7mm of spacing for any M48x0.75 threaded imaging train, essential for achieving the precise back focus required by field flatteners, focal reducers, and off-axis guiders.\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\u003e7mm M48 Threaded Spacer for Rigid Connections\u003c\/h3\u003e\n\u003cp\u003eThis extension is machined from metal and black anodized on all surfaces to prevent stray light reflections inside your imaging train. An external knurled band provides a secure grip, making it easy to tighten or loosen the adapter, even with gloves on during a cold night. The fixed 7mm length ensures perfect rigidity with no tilt or flex.\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\u003eModular Spacing: Fine-Tune Back Focus in 0.5mm Steps\u003c\/h3\u003e\n\u003cp\u003eAchieving perfect back focus is rarely a matter of a single spacer. This 7mm extension is a core component of a larger modular system. By stacking it with other M48 extensions or adding separately available 0.5mm and 1mm fine-tuning spacers, you can build the exact custom length your optical system demands with sub-millimeter precision.\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 PrimaLuceLab 7mm M48 Extension?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary use is to add a precise \u003cstrong\u003e7mm of distance\u003c\/strong\u003e in an M48-threaded imaging train. This is critical for positioning a camera sensor at the exact back focus distance specified by an optical corrector like a field flattener or focal reducer, ensuring sharp stars across the entire frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the PrimaLuceLab 7mm M48 Extension help achieve the 55mm back focus standard?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eMany correctors require a 55mm back focus. If your camera, filter wheel, and off-axis guider combine to a total distance of 48mm, this \u003cstrong\u003e7mm extension\u003c\/strong\u003e provides the final, rigid piece needed to reach the exact 55mm target without introducing any flex.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I stack multiple PrimaLuceLab 7mm M48 Extensions together?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, these extensions are designed to be stackable. You can thread multiple extensions together to achieve longer distances, for example, two 7mm extensions would create a rigid 14mm spacer.\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 a fixed 7mm extension over a variable spacer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA fixed extension like this \u003cstrong\u003e7mm M48 spacer\u003c\/strong\u003e offers superior rigidity. Variable spacers can sometimes introduce a small amount of tilt or flex into the optical train, which can be detrimental to image quality, especially with heavy cameras. A solid, fixed-length spacer eliminates this possibility.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the PrimaLuceLab 7mm M48 Extension cause vignetting with my full-frame camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The M48 (or \"2-inch filter\") thread standard has a large enough clear aperture to fully illuminate full-frame sensors (42mm image circle) without causing vignetting. This \u003cstrong\u003e7mm extension\u003c\/strong\u003e maintains that clear aperture throughout.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the 7mm extension with other spacers to get a distance like 8.5mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can combine this \u003cstrong\u003e7mm extension\u003c\/strong\u003e with other available spacers. To achieve 8.5mm, you would thread together the 7mm extension, a 1mm spacer, and a 0.5mm spacer. This modularity allows you to create highly precise custom lengths.\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\u003e7mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Type\u003c\/td\u003e\n\u003ctd\u003eM48x0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnections\u003c\/td\u003e\n\u003ctd\u003e1x Male, 1x Female\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAnodized Aluminum\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\"\u003ePrimaLuceLab 7mm M48 Extension\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\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967871152413,"sku":"PLL-PL3304807","price":41.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-7mm-M48-extension__48261.1617396026.1280.1280.jpg?v=1684346301"},{"product_id":"primalucelab-9mm-m48-extension","title":"PrimaLuceLab 9mm M48 Extension","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eProvides a fixed 9mm of optical path extension\u003c\/li\u003e\n\u003cli\u003eStandard M48x0.75 male and female threads\u003c\/li\u003e\n\u003cli\u003eBlack anodized aluminum construction minimizes reflections\u003c\/li\u003e\n\u003cli\u003eKnurled exterior for a secure grip during installation\u003c\/li\u003e\n\u003cli\u003ePart of a modular system with 0.5mm and 1mm spacers available\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\u003ePrimaLuceLab 9mm M48 Extension\u003c\/h2\u003e\n      \u003cp\u003eThe PrimaLuceLab 9mm M48 Extension adds a precise 9mm of spacing to any M48x0.75 threaded imaging train, a critical step for achieving the exact back focus required by field flatteners and focal reducers. This single, solid component can be combined with other PrimaLuceLab M48 spacers and extensions, allowing you to build custom lengths in increments as fine as 0.5mm to perfectly match your camera and optical corrector.\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\u003ePrecision 9mm M48 Spacing for Back Focus Control\u003c\/h3\u003e\n      \u003cp\u003eAchieving a flat field from edge to edge depends on maintaining the exact distance between your corrector lens and camera sensor. This 9mm extension is a fundamental building block for hitting that target. Its rigid, single-piece metal construction ensures there is no flexure or tilt in the optical path.\u003c\/p\u003e\n      \u003cp\u003eThe entire extension is black anodized, both inside and out, to absorb stray light and prevent internal reflections from degrading image contrast. A knurled outer surface provides a secure grip, making it easy to tighten or remove the extension even with gloves on in cold weather.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFixed 9mm Length:\u003c\/strong\u003e Delivers a solid, non-adjustable 9mm of spacing for robust and repeatable setups.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eM48x0.75 Threads:\u003c\/strong\u003e Features male threads on one side and female on the other, making it universally compatible with 2-inch filter threads and a wide range of astronomy accessories.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eModular Design:\u003c\/strong\u003e Combine this 9mm extension with other M48 extensions or add 0.5mm and 1mm fine-tuning spacers to create the exact total distance your imaging system requires.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eAnti-Reflection Finish:\u003c\/strong\u003e A matte black anodized surface, including the internal threads, ensures no stray light contaminates your images.\u003c\/li\u003e\n      \u003c\/ul\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\"\u003eHow do I use the PrimaLuceLab 9mm M48 Extension to correct my back focus?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYou insert the \u003cstrong\u003ePrimaLuceLab 9mm M48 Extension\u003c\/strong\u003e between your camera and your field flattener or reducer. Most correctors require a specific distance (often 55mm) to the sensor. This extension helps make up part of that distance. You may need to combine it with other spacers to achieve the exact measurement required by your specific optical setup.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I stack multiple 9mm M48 extensions together?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. The PrimaLuceLab extensions are designed to be screwed together. For example, you could stack two \u003cstrong\u003e9mm M48 extensions\u003c\/strong\u003e to create 18mm of spacing. For finer adjustments, PrimaLuceLab also offers 0.5mm and 1mm spacers that can be placed between extensions.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eMy flattener requires 55mm of back focus and my camera has 17.5mm. How would the PrimaLuceLab 9mm M48 Extension fit in?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIn this scenario, you need to add 37.5mm of spacing (55mm - 17.5mm = 37.5mm). The \u003cstrong\u003ePrimaLuceLab 9mm M48 Extension\u003c\/strong\u003e can be one component of your solution. You could combine it with other extensions, such as a 20mm, a 5mm, and a few fine-tuning spacers (like three 1mm and one 0.5mm spacer) to build the required 37.5mm distance.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI'm adding an M48 filter drawer to my imaging train with an f\/5 refractor. How does the 9mm M48 Extension help?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eA filter drawer adds to your back focus distance, typically around 20mm. If adding the drawer pushes your sensor too far back, you may need to replace a longer extension with a shorter one. The \u003cstrong\u003ePrimaLuceLab 9mm M48 Extension\u003c\/strong\u003e is a useful component to have on hand to make these kinds of adjustments, helping you re-establish the correct total spacing after introducing a new accessory.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the knurled grip on the PrimaLuceLab 9mm M48 Extension useful?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe knurled grip provides a textured surface that is much easier to hold and turn than a smooth cylinder, especially in cold or damp conditions when you might be wearing gloves. It prevents the frustration of trying to unscrew a tightly threaded, slippery component in the dark.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the internal black anodizing important on the PrimaLuceLab 9mm M48 Extension?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe internal black anodizing is a critical anti-reflection measure. Bright stars outside the field of view can send light into the optical tube at an angle. A reflective inner surface on an extension tube could bounce this stray light onto your camera sensor, reducing contrast and creating artifacts. The matte black finish absorbs this light, preserving the dark background of your images.\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\u003eExtension Length\u003c\/td\u003e\n\u003ctd\u003e9mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eThread Type\u003c\/td\u003e\n\u003ctd\u003eM48x0.75 (Male and Female)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAnodized Aluminum\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\"\u003ePrimaLuceLab 9mm M48 Extension\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\u003cp\u003eThis product does not require specific software or a manual for operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967871217949,"sku":"PLL-PL3304809","price":41.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-9mm-M48-extension__78609.1617396026.1280.1280.jpg?v=1684346303"},{"product_id":"primalucelab-m48-spacer-1mm","title":"PrimaLuceLab M48 Spacer 1mm","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003ePrecise 1mm Thickness\u003c\/li\u003e\n\u003cli\u003eM48x0.75 Female Thread\u003c\/li\u003e\n\u003cli\u003eFine-Tunes Back Focus Spacing\u003c\/li\u003e\n\u003cli\u003eUsed with M48 Extension Tubes\u003c\/li\u003e\n\u003cli\u003ePrevents Star Elongation at Field Edge\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\u003ePrimaLuceLab M48 Spacer 1mm\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab M48 Spacer provides a precise 1mm shim for M48-threaded accessories, allowing you to achieve exact back focus spacing in your imaging train when standard extension tubes fall just short.\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-Tuning Back Focus: The Critical 1mm Adjustment\u003c\/h3\u003e\n\u003cp\u003eAchieving the perfect distance between your field flattener or reducer and the camera sensor is non-negotiable for sharp, round stars across the entire frame. When your combination of extension tubes leaves you with a tiny but critical gap, this 1mm spacer closes it without introducing flexure or alignment issues. It's the essential component for correcting minor spacing errors that cause distorted stars at the edge of your images.\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\u003e1mm vs. 0.5mm Spacers: Selecting the Right Increment\u003c\/h3\u003e\n\u003cp\u003ePrimaLuceLab offers M48 spacers in both 1mm and 0.5mm thicknesses to cover different needs. This 1mm spacer is ideal for making a noticeable adjustment when you're confident in the approximate size of your spacing gap. For situations requiring even more granular control, where you are dialing in the distance with extreme precision, the 0.5mm version may be a better choice. Many imagers keep both on hand to solve any back focus challenge.\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 PrimaLuceLab M48 Spacer 1mm used for in an imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe PrimaLuceLab M48 Spacer 1mm is used to make fine adjustments to the back focus distance between an optical corrector (like a flattener or reducer) and the camera sensor. It adds exactly \u003cstrong\u003e1mm\u003c\/strong\u003e of length to an M48-threaded connection to ensure stars are perfectly focused across the entire field of view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen would I need a 1mm spacer instead of another M48 extension tube?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou need a 1mm spacer when your existing M48 extension tubes get you very close to the correct back focus, but not exactly there. If the next size up for an extension tube is too long and causes star bloat, this thin spacer provides the small, precise increment needed to nail the spacing perfectly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I stack multiple PrimaLuceLab 1mm M48 spacers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, you can stack multiple spacers to achieve a custom distance (e.g., two spacers for 2mm). However, for larger gaps, it is always mechanically better to use a single, solid M48 extension tube of the correct length to minimize potential tilt in the imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I know if I need this 1mm spacer for my Celestron EdgeHD reducer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAfter setting up your imaging train to the manufacturer's recommended back focus, take a test image. If you notice that stars in the corners are slightly elongated, you likely have a small spacing error. Adding or removing a 1mm spacer is a common method to test and correct this, aiming for perfectly round stars from the center to the edge.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the PrimaLuceLab M48 spacer threaded?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the spacer itself is not threaded. It is a flat, 1mm thick ring that you place between two M48-threaded components, such as an extension tube and a camera adapter. The male threads of one component pass through the spacer to engage with the female threads of the other.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this M48 spacer work with accessories from other brands?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The M48x0.75 thread is a standard in astrophotography. This 1mm spacer will work with any M48-threaded extension tubes, flatteners, off-axis guiders, or camera adapters from any manufacturer that adheres to this standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\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\"\u003ePrimaLuceLab M48 Spacer 1mm\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\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967871676701,"sku":"PLL-PL3304801","price":13.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-M48-spacer-1mm__57276.1617396026.1280.1280.jpg?v=1684346305"},{"product_id":"primalucelab-m48-spacer-0-5mm","title":"PrimaLuceLab M48 Spacer 0.5mm","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eProvides a precise 0.5mm of spacing\u003c\/li\u003e\n\u003cli\u003eStandard M48x0.75 female and male threads\u003c\/li\u003e\n\u003cli\u003eEnables fine-tuning of critical back focus\u003c\/li\u003e\n\u003cli\u003eUsed with M48 extension tubes for custom lengths\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\u003ePrimaLuceLab M48 Spacer 0.5mm\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab M48 Spacer adds a precise 0.5mm of optical path length, designed to solve critical back focus spacing issues in any M48-threaded imaging train. When standard extension tubes leave you just shy of the perfect distance for your flattener or reducer, this thin spacer provides the micro-adjustment needed to achieve sharp, round stars across the entire 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\u003eAchieving Critical Back Focus: The Role of a 0.5mm Spacer\u003c\/h3\u003e\n\u003cp\u003eCorrectors like field flatteners and focal reducers demand a highly specific back focus distance—often 55mm—to deliver a flat field. The PrimaLuceLab M48 Spacer is the solution for when your combined camera and accessory stack is off by a fraction of a millimeter. By inserting this 0.5mm spacer, you can precisely dial in the required distance that standard, larger extensions can't achieve.\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\u003eChoosing Your Spacer: 0.5mm vs. 1mm Increments\u003c\/h3\u003e\n\u003cp\u003eThis 0.5mm spacer is intended for the finest adjustments, where you are already very close to the ideal back focus and need only a minimal extension. For situations requiring a slightly larger adjustment, PrimaLuceLab also offers a 1mm version. Astrophotographers often keep a set of various spacer thicknesses on hand to guarantee they can achieve perfect spacing with any combination of equipment.\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 PrimaLuceLab M48 Spacer 0.5mm in my imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou simply thread the \u003cstrong\u003ePrimaLuceLab M48 Spacer 0.5mm\u003c\/strong\u003e between any two M48-threaded components in your imaging train, such as between your camera and a filter wheel, or between a filter wheel and an M48 extension tube. It adds exactly 0.5mm to the total spacing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen would I need a 0.5mm M48 spacer instead of a standard extension tube?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eStandard extension tubes typically come in lengths of 5mm, 10mm, 20mm, and longer. You need a \u003cstrong\u003e0.5mm M48 spacer\u003c\/strong\u003e when the gap you need to fill is smaller than the shortest available extension tube. It's used for fine-tuning, not for making large changes to your back focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy flattener requires 55mm of back focus, but my camera and filter wheel only provide 54.5mm. Will the PrimaLuceLab M48 Spacer 0.5mm fix this?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the perfect application for the \u003cstrong\u003ePrimaLuceLab M48 Spacer 0.5mm\u003c\/strong\u003e. Adding this spacer into your M48 imaging train will increase the total distance from 54.5mm to the required 55mm, ensuring your flattener performs optimally and delivers sharp stars to the edge of your frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I stack multiple 0.5mm M48 spacers to achieve 1mm or 1.5mm of spacing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, you can stack spacers. However, it's generally best to use the fewest number of components possible to maintain rigidity and minimize the potential for tilt in the imaging train. If you need 1mm of spacing, using a single 1mm spacer is preferable to stacking two 0.5mm spacers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm using an M48 extension for my off-axis guider, but the prism isn't fully illuminated. Could the PrimaLuceLab 0.5mm spacer help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt's possible. Sometimes a very small change in the position of the off-axis guider relative to the corrector can improve prism illumination. The \u003cstrong\u003ePrimaLuceLab 0.5mm spacer\u003c\/strong\u003e could be used to slightly shift the OAG's position within the optical path, which may help align the prism with the corrected light cone.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat material is the PrimaLuceLab M48 Spacer 0.5mm made from?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe manufacturer does not specify the exact material. However, like all PrimaLuceLab components, it is engineered for precision and rigidity to ensure it does not introduce flexure or tilt into your astrophotography 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\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eSpacer Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003e0.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Type\u003c\/td\u003e\n\u003ctd\u003eM48 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\"\u003eM48 Spacer 0.5mm\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\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967871709469,"sku":"PLL-PL3304800","price":13.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-M48-spacer-0-5mm__89499.1617396026.1280.1280.jpg?v=1684346308"},{"product_id":"primalucelab-m48-female-to-t2-male-adapter","title":"PrimaLuceLab M48 Female to T2 Male Adapter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects female M48x0.75 threads to male T2 (M42x0.75) threads\u003c\/li\u003e\n\u003cli\u003eSolves common thread mismatches in imaging trains\u003c\/li\u003e\n\u003cli\u003eDurable, all-metal construction for a rigid connection\u003c\/li\u003e\n\u003cli\u003eBlack anodized finish minimizes internal reflections\u003c\/li\u003e\n\u003cli\u003eLow-profile design consumes minimal back focus\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\u003ePrimaLuceLab M48 Female to T2 Male Adapter\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab M48 Female to T2 Male Adapter provides a critical link between the two most common photographic thread standards in astronomy, converting a male M48x0.75 thread to a male T2 (M42x0.75) thread. This all-metal, black-anodized adapter ensures a rigid connection when attaching M48-threaded correctors or accessories to cameras that use the T2 standard.\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\u003eConnecting M48x0.75 Accessories to T2 (M42x0.75) Threads\u003c\/h3\u003e\n\u003cp\u003eMany modern field flatteners, reducers, and off-axis guiders feature a male M48x0.75 thread to provide a wide, unvignetted light path for larger sensors. However, most dedicated astronomy cameras and DSLR T-rings still rely on the female T2 (M42x0.75) thread. This adapter bridges that gap, allowing you to create a secure, threaded connection between mismatched components without introducing flexure.\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\u003e1 Adapter for 2 Standards: All-Metal, Low-Profile Construction\u003c\/h3\u003e\n\u003cp\u003eMachined entirely from metal and black-anodized to prevent internal reflections, this adapter maintains the mechanical integrity of your imaging train. Its thin profile is designed to consume minimal back focus, a critical consideration when spacing correctors and cameras to precise distances for optimal field correction.\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 PrimaLuceLab M48 to T2 adapter used for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter allows you to connect an accessory with a male \u003cstrong\u003eM48 (48x0.75) thread\u003c\/strong\u003e, like a field flattener or reducer, to a camera, filter wheel, or T-ring that has a female \u003cstrong\u003eT2 (42x0.75) thread\u003c\/strong\u003e. It converts the larger M48 format down to the smaller, more common T2 standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this PrimaLuceLab adapter to connect my full-frame field corrector to my ASI533MC Pro camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a perfect application. Full-frame correctors often terminate in a male M48 thread to prevent vignetting, while the ZWO ASI533MC Pro and many similar cameras have a standard female T2-thread interface. This adapter will create the necessary mechanical and optical connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a DSLR with a standard T2-ring. Will this adapter let me attach an M48 threaded accessory?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. Your DSLR's T-ring presents a female T2 thread. This adapter provides the male T2 thread to connect to the T-ring, while its female M48 side accepts your M48-threaded accessory, such as a 2\" filter drawer or corrector.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the PrimaLuceLab M48 to T2 adapter made of?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter is machined entirely from metal and features a black anodized finish. This ensures a rigid, secure connection that won't flex under load and helps prevent stray light from reflecting inside your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this M48 to T2 adapter add significant length to my imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter is designed to be very thin to minimize the amount of back focus it consumes. While any adapter adds some optical path length, this one is engineered to be as low-profile as possible to help you meet the strict spacing requirements of your optical system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do both M48 and T2 threads exist in astronomy?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eT2 (M42x0.75)\u003c\/strong\u003e thread has been a long-standing standard for astronomy accessories. The larger \u003cstrong\u003eM48 (48x0.75)\u003c\/strong\u003e thread, often called the \"2-inch filter thread,\" became popular because it provides a wider, unvignetted opening for larger camera sensors, such as full-frame and APS-C formats. This adapter allows you to use modern wide-aperture optics with cameras and accessories that still use the T2 standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967871775005,"sku":"PLL-PL3304842","price":31.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-M48-female-to-T2-male-adapter__90050.1617396026.1280.1280.jpg?v=1684346310"},{"product_id":"primalucelab-m48-male-to-t2-female-adapter","title":"PrimaLuceLab M48 Male to T2 Female Adapter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects female M48 (48x0.75mm) accessories to male T2 (42x0.75mm) threads\u003c\/li\u003e\n\u003cli\u003eUltra-thin design adds only 3mm to the optical path\u003c\/li\u003e\n\u003cli\u003eConverts an M48 female thread into a T2 female thread\u003c\/li\u003e\n\u003cli\u003eDurable all-metal construction 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\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\u003ePrimaLuceLab M48 Male to T2 Female Adapter\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab M48 Male to T2 Female Adapter solves the common M48 (48x0.75mm) to T2 (42x0.75mm) thread mismatch while adding only 3mm of optical path length, preserving critical back-focus for flatteners, reducers, and cameras.\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 3mm Low-Profile M48 to T2 Conversion\u003c\/h3\u003e\n\u003cp\u003eThis adapter converts any female M48 thread into a female T2 thread, allowing you to connect T2-male accessories directly. Its key design feature is an exceptionally thin profile that consumes just 3mm of back-focus, making it an essential component for complex imaging trains where every millimeter counts.\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\u003eIntegrating M48 Accessories with T2 Imaging Trains\u003c\/h3\u003e\n\u003cp\u003eMany imaging accessories, like filter wheels or off-axis guiders, terminate in a female M48 thread to maximize aperture and prevent vignetting. This adapter lets you securely step down that connection to the T2 standard used by many astronomy cameras and correctors, ensuring broad compatibility without introducing flexure.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid Construction:\u003c\/strong\u003e Machined entirely from metal and black anodized to eliminate internal reflections that could reduce contrast.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Function:\u003c\/strong\u003e Allows you to securely attach accessories with a male T2 thread into components that have a female M48 thread.\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 PrimaLuceLab M48 to T2 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary function is to connect an accessory with a male \u003cstrong\u003eT2 (42x0.75mm)\u003c\/strong\u003e thread to a component with a female \u003cstrong\u003eM48 (48x0.75mm)\u003c\/strong\u003e thread. In effect, it converts a female M48 port into a female T2 port.\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 PrimaLuceLab M48 to T2 adapter consume?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter is designed to be very thin and adds only \u003cstrong\u003e3mm\u003c\/strong\u003e of thickness to the optical path. This minimal profile helps preserve precious back-focus in your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a filter wheel with an M48 female thread and a camera with a T2 male thread. Is this the right adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the correct adapter for that scenario. You would screw the M48 male side of this adapter into your filter wheel, which then presents a female T2 thread for your camera's male T2 nosepiece to connect to.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the PrimaLuceLab M48 to T2 adapter to connect an M48 field flattener to my T2-threaded camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. If your field flattener has a female M48 thread on the camera side, you can insert this adapter to convert it to a female T2 thread, allowing direct connection to a camera with a male T2 interface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the PrimaLuceLab M48 to T2 adapter made of?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter is made entirely of metal with a black anodized finish. This ensures a rigid, non-reflective connection between your components.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this adapter convert a male M48 thread into a male T2 thread?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is M48 male to T2 female. It is designed to be screwed into a female M48 thread, thereby creating a female T2 thread. It does not adapt male-to-male or female-to-female connections 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\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\"\u003ePrimaLuceLab M48 Male to T2 Female 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\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967872233757,"sku":"PLL-PL3304248","price":31.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-M48-male-to-T2-female-adapter__12828.1641520651.1280.1280.jpg?v=1684346312"},{"product_id":"primalucelab-2-nosepiece-for-arco-2","title":"PrimaLuceLab 2\" Nosepiece for ARCO 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects ARCO 2\" Rotator to 2\" Focusers\u003c\/li\u003e\n\u003cli\u003eEnables rotator use on systems with non-threaded visual backs\u003c\/li\u003e\n\u003cli\u003eDesigned for the PrimaLuceLab ecosystem\u003c\/li\u003e\n\u003cli\u003eProvides a secure compression-fit 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\u003ePrimaLuceLab 2\" Nosepiece for ARCO 2\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 2\" Nosepiece for ARCO 2\" is the essential adapter for integrating your ARCO 2\" rotator with any telescope focuser that uses a standard 2\" eyepiece holder. This component bridges the gap between the ARCO's threaded body and focusers that rely on a simple 2\" compression ring or set-screw visual back, expanding compatibility across a wider range of optical tubes.\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\u003eSeamless Integration with 2\" Focusers\u003c\/h3\u003e\n\u003cp\u003eThis nosepiece allows you to mount the high-precision ARCO 2\" rotator on focusers where a direct threaded connection isn't possible. It's the key to unlocking automated field rotation and de-rotation capabilities on Schmidt-Cassegrains, refractors, and other telescopes equipped with standard 2\" visual backs, including those automated with a SESTO SENSO focusing motor.\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 PrimaLuceLab 2\" Nosepiece for ARCO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary purpose is to allow the \u003cstrong\u003eARCO 2\" rotator\u003c\/strong\u003e to be inserted into any standard \u003cstrong\u003e2\" focuser\u003c\/strong\u003e or visual back, just like an eyepiece. This is necessary for telescopes that do not offer a threaded connection for accessories on their focuser drawtube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the PrimaLuceLab 2\" Nosepiece for ARCO 2\" with a non-PrimaLuceLab focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This nosepiece is designed to fit any focuser that accepts standard 2\" barrel accessories. As long as your focuser has a 2\" eyepiece holder with a compression ring or set screws, you can use this adapter to mount your ARCO 2\" rotator.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this nosepiece help when using an ARCO 2\" rotator with a Schmidt-Cassegrain telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eMost Schmidt-Cassegrain telescopes (SCTs) come standard with a 2\" visual back that uses a compression ring. The \u003cstrong\u003ePrimaLuceLab 2\" Nosepiece\u003c\/strong\u003e allows you to slide the ARCO 2\" rotator directly into that visual back, making it easy to add precise rotation to your SCT imaging train without changing the stock focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need this nosepiece if my focuser already has a threaded connection for the ARCO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. If your focuser, such as a PrimaLuceLab ESATTO, has the correct threaded adapter to connect directly to the ARCO 2\", you do not need this 2\" nosepiece. This adapter is specifically for focusers that lack a threaded attachment point.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the PrimaLuceLab 2\" Nosepiece for ARCO 2\" required for field de-rotation on an alt-az mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the ARCO 2\" rotator itself is used for field de-rotation, this nosepiece is only required if your telescope on the alt-az mount uses a 2\" visual back instead of a threaded connection. The nosepiece provides the physical connection method; the de-rotation is the function of the ARCO.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach the PrimaLuceLab 2\" Nosepiece to the ARCO 2\" rotator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe nosepiece threads securely onto the body of the ARCO 2\" rotator. Once attached, the entire assembly can be inserted into a 2\" focuser and locked in place with the focuser's compression ring or 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\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967873544477,"sku":"PLL-PL3600413","price":69.0,"currency_code":"CAD","in_stock":true}]},{"product_id":"primalucelab-pl8410053","title":"PrimaLuceLab 2\" visual back for ESATTO 2\" LP","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts ESATTO 2\" LP Focuser to 2\" Accessories\u003c\/li\u003e\n\u003cli\u003eConnects to Focuser via M60 Thread\u003c\/li\u003e\n\u003cli\u003eInternal Brass Compression Ring Prevents Scratches\u003c\/li\u003e\n\u003cli\u003eThree Locking Screws for Secure, Centered Clamping\u003c\/li\u003e\n\u003cli\u003eLow-Profile, 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\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\u003e2\" visual back for ESATTO 2\" LP\u003c\/h2\u003e\n      \u003cp\u003eThis 2\" visual back securely adapts the M60 drawtube thread of your PrimaLuceLab ESATTO 2\" LP focuser to accept any standard 2\" accessory. Its three-screw locking system and internal brass compression ring provide a solid, non-marring connection for 2\" diagonals, eyepieces, and camera nosepieces.\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\u003eAdapt Your ESATTO 2\" LP to Standard 2\" Accessories\u003c\/h3\u003e\n      \u003cp\u003eThis adapter is the essential component for using visual accessories or cameras with your ESATTO 2\" LP. It directly threads onto the focuser's M60 drawtube, converting it to the universal 2\" barrel format used by the vast majority of astronomical equipment.\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, Non-Marring Clamping with 3 Locking Screws\u003c\/h3\u003e\n      \u003cp\u003eTo protect your equipment, this visual back uses an internal brass compression ring, which creates a firm grip without the risk of scratching or scoring the barrels of your eyepieces or camera nosepieces. Three locking screws, spaced at 120-degree intervals, ensure your accessory is perfectly centered and held rigidly, preventing any tilt, even when supporting a heavy imaging train.\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 install the 2\" visual back on my ESATTO 2\" LP?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eInstallation is straightforward. You simply thread the visual back directly onto the \u003cstrong\u003eM60 male thread\u003c\/strong\u003e located on the drawtube of the ESATTO 2\" LP focuser until it is snug.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the brass compression ring on this ESATTO 2\" visual back?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe internal \u003cstrong\u003ebrass compression ring\u003c\/strong\u003e provides a secure grip on your 2\" accessory without the locking screws making direct contact. This prevents the screws from scratching, denting, or otherwise marring the barrels of your expensive eyepieces, diagonals, or camera nosepieces.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan this 2\" visual back securely hold a heavy camera on my Celestron EdgeHD 8\" with an ESATTO 2\" LP?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. The visual back is designed to support heavy loads. The combination of the secure M60 threaded connection to the focuser and the \u003cstrong\u003ethree-screw locking system\u003c\/strong\u003e ensures a rigid, tilt-free connection suitable for most astrophotography cameras.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI'm using the ESATTO 2\" LP on my Sky-Watcher Esprit 120 refractor. Will this adapter let me use my 2\" diagonal?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. This is the correct adapter to convert the ESATTO 2\" LP's M60 focuser thread to a standard 2\" port, allowing you to insert and securely clamp your 2\" diagonal for visual observing with your Esprit 120.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter fit other focusers besides the ESATTO 2\" LP?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this adapter is specifically designed with an \u003cstrong\u003eM60 female thread\u003c\/strong\u003e to connect exclusively to the PrimaLuceLab ESATTO 2\" LP robotic focuser. It is not compatible with other focusers that may use different drawtube thread sizes.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this adapter use set screws that will scratch my 2\" accessories?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, it is a non-marring design. It features an internal brass compression ring that tightens around the accessory barrel. This provides a firm grip without the tips of the screws directly touching and damaging your 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      \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\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913371349277,"sku":"PLL-PL8410053","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-2-visual-back-for-ESATTO-2-LP-1_0243c162-1be8-431d-b49e-3d88678f38cd.jpg?v=1789090018"},{"product_id":"primalucelab-pl3600543","title":"PrimaLuceLab Adapter from M60 to T2 with Stop Ring for ESATTO 2” LP","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects T2 (M42x0.75) accessories to ESATTO 2\" LP focusers\u003c\/li\u003e\n\u003cli\u003eFeatures an M60 male thread for direct attachment\u003c\/li\u003e\n\u003cli\u003eIncludes a stop ring for 360° rotational adjustment of your camera\u003c\/li\u003e\n\u003cli\u003eMaintains a minimal optical path for systems with tight backfocus\u003c\/li\u003e\n\u003cli\u003eAll-metal construction ensures a secure, tilt-free 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\u003ePrimaLuceLab Adapter from M60 to T2 with Stop Ring for ESATTO 2” LP\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter from M60 to T2 securely connects your camera and accessories with an M42x0.75 female thread to the M60 drawtube of the ESATTO 2” LP robotic focuser. This purpose-built adapter includes an integrated stop ring, allowing you to achieve precise 360° rotational framing without compromising the rigid, threaded connection essential 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\u003eConnect T2 (M42x0.75) Accessories to Your ESATTO 2\" LP Focuser\u003c\/h3\u003e\n\u003cp\u003eThis adapter provides the standard T2 male thread (M42x0.75) required by a vast range of astronomy cameras, filter wheels, and off-axis guiders. It threads directly onto the ESATTO 2\" LP's M60 drawtube, creating a solid, secure link in your imaging train that prevents tilt and flexure. By design, the adapter adds minimal optical thickness, preserving the critical backfocus of telescopes like the Celestron EdgeHD 8\".\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\u003eStop Ring for Precise 360° Camera Framing\u003c\/h3\u003e\n\u003cp\u003eThe integrated stop ring is the key to perfect composition. After threading your T2 camera or accessory onto the adapter, you can slightly loosen the stop ring, rotate your camera to the exact desired angle, and then lock it firmly in place by tightening the ring against the camera body. This feature is indispensable for composing mosaics or aligning your sensor with specific celestial features.\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\u003eM60-T2 vs. M60-M48 Adapter: Choosing the Right Thread for Your ESATTO\u003c\/h3\u003e\n\u003cp\u003ePrimaLuceLab offers both T2 and M48 adapters for the ESATTO 2\" LP, and the correct choice depends on your equipment. This M60-T2 adapter is the standard for cameras with smaller sensors and accessories with 1.25\" filter threads.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoose this T2 (M42) Adapter if:\u003c\/strong\u003e You are using a planetary camera, a guide camera, or a deep-sky camera with a smaller sensor (up to Four Thirds format) and a T2-threaded connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoose the M48 Adapter if:\u003c\/strong\u003e You are using a camera with a larger APS-C or full-frame sensor, or a 2\" filter wheel, to prevent vignetting at the edges of your field of view.\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 stop ring on the PrimaLuceLab M60 to T2 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring allows you to achieve precise rotational framing of your camera. You can thread your camera on, back it off to the perfect angle for your target, and then tighten the stop ring against the camera body to lock it securely in that orientation without any wobble.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this M60 to T2 adapter add significant backfocus to my ESATTO 2\" LP setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the adapter is designed to be as low-profile as possible. With the stop ring attached, it adds a minimal, specified amount of optical thickness. If you remove the stop ring, the optical thickness becomes negligible, making it ideal for telescopes with very limited backfocus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the M60 to T2 adapter compatible with the standard ESATTO 2\" or only the ESATTO 2\" LP model?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed \u003cstrong\u003especifically for the ESATTO 2\" LP (Low Profile) focuser\u003c\/strong\u003e, which uses an M60x1 female thread on its drawtube. It is not compatible with the standard ESATTO 2\" or 3\" models, which use different thread sizes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eShould I choose this T2 adapter or the M48 version for my ZWO ASI533MC Pro camera and ESATTO 2\" LP?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor a ZWO ASI533MC Pro camera, \u003cstrong\u003ethis T2 adapter is the correct choice\u003c\/strong\u003e. The ASI533MC Pro has a native M42x0.75 (T2) female thread on its front plate, so this adapter will connect to it directly and securely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use this adapter to frame a target like the Horsehead Nebula (Barnard 33) with my ESATTO 2\" LP?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, thread the adapter onto your ESATTO 2\" LP. Next, thread your camera onto the adapter's T2 threads until it is snug. Loosen the stop ring, then rotate the entire camera body until the Horsehead Nebula is framed exactly as you want it on your screen. Finally, tighten the stop ring against your camera to lock the orientation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this adapter to attach a DSLR with a T-ring to my ESATTO 2\" LP?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. A standard T-ring for a DSLR camera has a female T2 (M42x0.75) thread. You can thread the T-ring directly onto this adapter, allowing you to connect your DSLR body to the ESATTO 2\" LP focuser.\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\u003eM60x1 Male Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Side Connection\u003c\/td\u003e\n\u003ctd\u003eT2 (M42x0.75) Male Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab ESATTO 2\" LP Robotic Focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eCamera Rotation and Framing Control\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\"\u003eAdapter from M60 to T2 with Stop 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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913372725533,"sku":"PLL-PL3600543","price":175.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-Adapter-from-M60-to-T2-with-stop-ring-for-ESATTO-2-LP-1_a052d7e2-2d72-4d60-8ce6-25dad179d8f6.jpg?v=1789090026"},{"product_id":"primalucelab-pl3600545","title":"PrimaLuceLab Adapter from M60 to M48 with stop ring for ESATTO 2” LP","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConverts ESATTO 2\" LP M60 thread to a standard M48 female thread\u003c\/li\u003e\n\u003cli\u003eIntegrated stop ring allows for 360° camera rotation and framing\u003c\/li\u003e\n\u003cli\u003eAdds minimal optical thickness to the imaging train\u003c\/li\u003e\n\u003cli\u003eProvides a secure, rigid connection for cameras and accessories\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for the PrimaLuceLab ESATTO 2\" LP focuser\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\u003eAdapter from M60 to M48 with stop ring for ESATTO 2” LP\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter from M60 to M48 with stop ring connects M48-threaded accessories to the M60 drawtube of the ESATTO 2” LP focuser, featuring a stop ring for precise 360° camera rotation.\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 M48 Connection for ESATTO 2\" LP Focusers\u003c\/h3\u003e\n\u003cp\u003eThis adapter creates a robust, threaded connection between the M60 male thread on the ESATTO 2\" LP draw tube and the universal M48x0.75 female thread found on countless cameras, filter wheels, and off-axis guiders. It ensures your imaging train is rigidly attached to the focuser, eliminating sources of tilt or flexure.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect ESATTO 2\" LP Fit:\u003c\/strong\u003e Threads directly onto the focuser's draw tube for a secure, native connection without intermediaries.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal M48 Compatibility:\u003c\/strong\u003e Unlocks the full ecosystem of M48 accessories for use with your ESATTO 2\" LP focuser, from popular CMOS cameras to corrective optics.\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\u003e360° Rotational Framing with a Minimal Optical Path\u003c\/h3\u003e\n\u003cp\u003eThe adapter's key feature is the integrated stop ring, which provides complete rotational control over your camera. Once your camera is attached, you can loosen the stop ring, rotate the camera to the ideal angle for framing targets like the Andromeda Galaxy (M31), and lock it down securely. This allows for perfect composition without unthreading your entire imaging train.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Framing Control:\u003c\/strong\u003e The stop ring allows you to rotate the camera independently, ensuring perfect composition for any celestial object.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimal Backfocus Usage:\u003c\/strong\u003e Designed to add the least possible optical thickness, this adapter preserves precious backfocus for other critical accessories like filters or off-axis guiders.\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 M60 to M48 adapter for the ESATTO 2” LP?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter's primary function is to convert the \u003cstrong\u003eM60 male thread\u003c\/strong\u003e on the PrimaLuceLab ESATTO 2\" LP focuser's draw tube to a more common \u003cstrong\u003eM48 female thread\u003c\/strong\u003e. This allows you to securely attach a wide variety of astrophotography cameras, filter wheels, and other accessories that use the M48 standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on this ESATTO 2\" LP adapter work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring is a separate, lockable ring on the adapter. You first thread your camera or accessory fully onto the adapter. Then, you can loosen the stop ring, rotate your camera to the desired angle for perfect framing, and then tighten the stop ring to lock it in that position. This prevents the camera from rotating or unthreading during an imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the optical thickness of this ESATTO 2\" LP adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter is designed to have a minimal optical thickness to conserve backfocus. With the stop ring in place, it adds a very small amount of length to the optical path. If you remove the stop ring, the optical thickness becomes zero.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter let me connect my ZWO camera to the ESATTO 2\" LP on my Celestron EdgeHD 8\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. If your ZWO camera has a standard M48 female thread for connection, this adapter is precisely what you need. It will thread onto the ESATTO 2\" LP focuser, which is compatible with the EdgeHD 8\", and allow you to securely attach your camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm trying to frame the Horsehead Nebula (B33) with my rectangular sensor. How does this M60 to M48 adapter help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring is essential for this task. After attaching your camera to the ESATTO 2\" LP via this adapter, you can rotate the camera body 360° until the long axis of your sensor aligns perfectly with the composition you want for the Horsehead and Flame Nebula region. Once framed, you lock the stop ring, and your composition is secure for the entire imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter required to use a camera with the ESATTO 2\" LP?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt depends on your camera's connection thread. The ESATTO 2\" LP focuser has an M60 male thread on the draw tube. If your camera or accessory has a matching M60 female thread, you don't need an adapter. However, since M48 is a far more common standard for imaging equipment, this adapter is a necessary component for most setups.\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 Thread\u003c\/td\u003e\n\u003ctd\u003eM60 (Male)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessory Side Thread\u003c\/td\u003e\n\u003ctd\u003eM48 (Female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Focuser\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab ESATTO 2” LP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Feature\u003c\/td\u003e\n\u003ctd\u003eRotational Stop Ring for Framing\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\"\u003eAdapter from M60 to M48 with stop 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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913373839645,"sku":"PLL-PL3600545","price":175.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-Adapter-from-M60-to-M48-with-stop-ring-for-ESATTO-2-LP-1_397766ad-67c0-45fb-9568-9f285ff76e88.jpg?v=1789090034"},{"product_id":"primalucelab-pl3600547","title":"PrimaLuceLab Adapter from M60 to M54 with stop ring for ESATTO 2” LP","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M54 threaded accessories to the ESATTO 2” LP focuser\u003c\/li\u003e\n\u003cli\u003eConverts M60 male thread to M54 female thread\u003c\/li\u003e\n\u003cli\u003eAdds only 2.5mm of optical thickness with the stop ring installed\u003c\/li\u003e\n\u003cli\u003eAdds zero optical thickness when the stop ring is removed\u003c\/li\u003e\n\u003cli\u003eIntegrated stop ring allows for precise 360° camera rotation and framing\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\u003eAdapter from M60 to M54 with stop ring for ESATTO 2” LP\u003c\/h2\u003e\n\u003cp\u003eThe Adapter for ESATTO 2” LP converts the focuser's native M60 thread to a standard M54 connection for cameras and accessories. It maintains a minimal light path, adding only 2.5mm of optical thickness with its stop ring installed, or zero thickness when the ring is removed for systems with critical backfocus 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\u003eM60 to M54 Conversion with a 2.5mm Profile\u003c\/h3\u003e\n\u003cp\u003eThis adapter creates the essential M60 male to M54 female threaded connection needed to attach modern imaging trains to the ESATTO 2\" LP focuser. With the stop ring in place, the adapter contributes a minimal 2.5mm to the optical path, preserving precious backfocus. For setups where every millimeter is critical, removing the stop ring reduces the added optical thickness to zero.\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 M54 Camera Framing with the Integrated Stop Ring\u003c\/h3\u003e\n\u003cp\u003eThe key feature of this adapter is the integrated M54 stop ring. This mechanism allows you to thread your camera or accessory on, then lock its rotational position precisely. This is critical for optimally framing targets like the Horsehead Nebula (Barnard 33) or aligning your sensor with the axes of your mount.\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 M60 to M54 adapter for the ESATTO 2” LP?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary function is to allow you to connect cameras, off-axis guiders, filter wheels, or any other accessory with a standard M54x0.75 female thread to the M60 draw tube of the PrimaLuceLab ESATTO 2” LP focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on the M60 to M54 adapter help when imaging a target like the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring lets you rotate your camera to the perfect angle to fit a large object like the Andromeda Galaxy (M31) within your sensor's frame. Once you find the ideal orientation, you can lock it in place, ensuring your composition doesn't shift during an imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the optical thickness of the ESATTO 2” LP M60 to M54 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter has two optical thickness configurations depending on your needs:\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWith Stop Ring:\u003c\/strong\u003e Adds \u003cstrong\u003e2.5mm\u003c\/strong\u003e to the optical path.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWithout Stop Ring:\u003c\/strong\u003e Adds \u003cstrong\u003ezero\u003c\/strong\u003e thickness, which is ideal for imaging setups with very limited backfocus.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this ESATTO 2\" LP adapter with a different brand of focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed for the M60 male thread on the ESATTO 2” LP draw tube. While it might physically thread into other focusers with an M60 thread, its optical thickness and stop ring function are optimized for the PrimaLuceLab ecosystem and correct fit is not guaranteed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIf I connect my camera to a Celestron RASA using the ESATTO 2” LP, why is the 'zero thickness' option important?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFast optical systems like a RASA have extremely critical backfocus tolerances. By removing the stop ring, the adapter's optical thickness becomes zero, consuming none of your available backfocus. This helps ensure you can place your camera sensor at the telescope's precise focal plane for sharp stars across the entire field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes removing the stop ring affect my ability to connect M54 accessories to the ESATTO 2\" LP?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, you can still securely thread any M54 accessory directly to the adapter. You will simply lose the ability to lock the rotation at a specific angle. The primary M60-to-M54 conversion function remains the same.\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 Thread\u003c\/td\u003e\n\u003ctd\u003eM60 Male\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Side Thread\u003c\/td\u003e\n\u003ctd\u003eM54 Female\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesigned For\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab ESATTO 2” LP Focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Thickness (with Stop Ring)\u003c\/td\u003e\n\u003ctd\u003e2.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Thickness (without Stop Ring)\u003c\/td\u003e\n\u003ctd\u003e0mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotational Adjustment\u003c\/td\u003e\n\u003ctd\u003eYes, via included stop ring\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\"\u003eAdapter from M60 to M54 with stop 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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913374331165,"sku":"PLL-PL3600547","price":175.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-Adapter-from-M60-to-M54-with-stop-ring-for-ESATTO-2-LP-1_b225cf28-aa6f-4830-89d9-37defb3f36b4.jpg?v=1789090042"},{"product_id":"primalucelab-pl3600350","title":"PrimaLuceLab Adapter from M81 to M65 with stop ring for ESATTO 3\" and ARCO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts the M81 thread of ESATTO 3\" and ARCO 3\" systems to an M65 male thread\u003c\/li\u003e\n\u003cli\u003eEnables direct connection of cameras and accessories with M65 female threads\u003c\/li\u003e\n\u003cli\u003eIntegrated M65 stop ring allows for precise rotational adjustment\u003c\/li\u003e\n\u003cli\u003eProvides rigid, secure framing for your imaging train\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\u003eAdapter from M81 to M65 with stop ring for ESATTO 3\" and ARCO 3\"\u003c\/h2\u003e\n\u003cp\u003eThis adapter seamlessly converts the M81 thread of your PrimaLuceLab ESATTO 3\" focuser or ARCO 3\" rotator to a male M65 thread, enabling a direct, secure connection for M65-threaded accessories. An integrated M65 stop ring provides critical rotational control, ensuring your camera sensor can be perfectly aligned when attached to your 3-inch ESATTO or ARCO imaging system.\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 M81 to M65 Adaptation for ESATTO 3\" and ARCO 3\"\u003c\/h3\u003e\n\u003cp\u003eDesigned specifically for the PrimaLuceLab 3-inch ecosystem, this adapter provides the essential mechanical link between the M81 drawtube thread and the common M65 thread found on many cameras and accessories. By threading this adapter directly onto your ESATTO 3\" or ARCO 3\", you create a solid, flex-free foundation for your imaging train without relying on less secure compression fittings.\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 Camera Framing: The Integrated M65 Stop Ring\u003c\/h3\u003e\n\u003cp\u003eThe key feature of this adapter is the M65 stop ring. This independent locking collar allows you to achieve perfect framing by fixing your camera at any rotational angle. Simply thread your camera onto the adapter, rotate it to the desired orientation, and then tighten the stop ring against the camera body to lock it securely in place, preventing any unwanted rotation 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 purpose of the PrimaLuceLab M81 to M65 adapter for ESATTO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter's primary function is to connect cameras or other imaging accessories that have a female \u003cstrong\u003eM65 thread\u003c\/strong\u003e to the male \u003cstrong\u003eM81 thread\u003c\/strong\u003e found on the draw tube of the PrimaLuceLab ESATTO 3\" robotic focuser and ARCO 3\" robotic rotator.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the M65 stop ring on this adapter work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring is a separate locking collar on the M65 thread. It allows you to precisely set the rotation of your camera. You can thread your camera on, back it off slightly to get the perfect orientation, and then tighten the stop ring against the camera body to lock it firmly in that position.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have an ESATTO 3\" on my Ritchey-Chrétien telescope; is this the correct adapter for my M65-threaded camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. If you have an ESATTO 3\" focuser, regardless of the telescope it's mounted on, this adapter is the correct component to securely attach any accessory or camera that uses an M65 female thread.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen imaging the Veil Nebula (NGC 6960), why is the stop ring on the M81 to M65 adapter useful?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring is critical for framing large, elongated targets like the Veil Nebula (NGC 6960). It allows you to precisely orient your camera's sensor to align with the shape of the nebula, ensuring you can capture its full extent within your field of view without leaving the threaded connection loose.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this M81 to M65 adapter with the smaller ESATTO 2\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is not compatible with the 2-inch model. It is designed exclusively for the large M81 thread present on the \u003cstrong\u003eESATTO 3\"\u003c\/strong\u003e and \u003cstrong\u003eARCO 3\"\u003c\/strong\u003e systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy camera ends up upside-down when I fully tighten it onto the M81 to M65 adapter. How do I fix this?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis is the exact problem the integrated M65 stop ring solves. First, ensure the stop ring is loosened. Thread on your camera until it is snug, then carefully rotate it backward until it is correctly oriented. Finally, tighten the stop ring firmly against the base of your camera to lock it in the correct position.\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\u003ePrimaLuceLab ESATTO 3\", ARCO 3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\/Rotator Side Thread\u003c\/td\u003e\n\u003ctd\u003eM81 Female (to connect to M81 male thread)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera\/Accessory Side Thread\u003c\/td\u003e\n\u003ctd\u003eM65 Male\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustment Feature\u003c\/td\u003e\n\u003ctd\u003eIntegrated M65 Stop Ring for Rotational Lock\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\"\u003eAdapter from M81 to M65 with stop 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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913376592157,"sku":"PLL-PL3600350","price":210.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-Adapter-from-M81-to-M65-with-stop-ring-for-ESATTO-3-and-ARCO-3-1_cecced21-42cd-41e1-a658-18cf78d90b7b.jpg?v=1789090059"},{"product_id":"primalucelab-pl8410010","title":"PrimaLuceLab 3\" Visual Back for ESATTO 3\" and ARCO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts M81 threads to accept 3-inch accessories\u003c\/li\u003e\n\u003cli\u003eDesigned for the PrimaLuceLab ESATTO 3\" Focuser\u003c\/li\u003e\n\u003cli\u003eCompatible with the PrimaLuceLab ARCO 3\" Rotator\u003c\/li\u003e\n\u003cli\u003eInternal brass compression ring prevents marring\u003c\/li\u003e\n\u003cli\u003eThree locking screws provide a secure, centered grip\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\u003e3\" Visual Back for ESATTO 3\" and ARCO 3\"\u003c\/h2\u003e\n\u003cp\u003eSecurely adapt your PrimaLuceLab ESATTO 3\" focuser or ARCO 3\" rotator for use with 3-inch accessories using this dedicated visual back. It provides a solid, non-marring connection via its M81 thread, ensuring your heavy cameras, diagonals, and eyepieces are held perfectly coaxial with your 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\u003eSecure M81 to 3-inch Connection for ESATTO and ARCO\u003c\/h3\u003e\n\u003cp\u003eThis adapter threads directly onto the M81 drawtube of your ESATTO 3\" or ARCO 3\", converting it to a standard 3-inch opening. The design prioritizes the safety of your equipment, incorporating a soft brass compression ring that grips accessories firmly without leaving scratches or gouges on their barrels.\u003c\/p\u003e\n\u003cp\u003eFor heavy imaging trains or large visual accessories, three locking screws are positioned around the barrel. This three-point system allows you to apply even pressure, guaranteeing a perfectly centered and rigid connection that prevents any tilt or flexure during an imaging session or when slewing the telescope.\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 3\" visual back for ESATTO 3\" and ARCO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis visual back is designed to connect accessories with a standard \u003cstrong\u003e3-inch nosepiece\u003c\/strong\u003e, such as diagonals, eyepieces, or certain cameras, to the \u003cstrong\u003eM81 female thread\u003c\/strong\u003e found on the drawtube of the PrimaLuceLab ESATTO 3\" robotic focuser and ARCO 3\" robotic rotator.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this 3\" visual back protect my accessories from scratches?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt features an \u003cstrong\u003einternal brass compression ring\u003c\/strong\u003e. Unlike simple set screws that dig directly into an accessory's barrel, this soft metal ring tightens evenly around the nosepiece, holding it securely without causing scratches, gouges, or other cosmetic damage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan this visual back securely hold a heavy imaging camera on an ESATTO 3\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The adapter is equipped with \u003cstrong\u003ethree locking screws\u003c\/strong\u003e arranged around the barrel. This allows you to create a robust, centered, and tilt-free connection that is essential for supporting heavy cameras, filter wheels, and other imaging accessories without flexure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich PrimaLuceLab products is this 3\" visual back compatible with?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed for PrimaLuceLab products that use an M81-threaded drawtube. This includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eESATTO 3\"\u003c\/strong\u003e Robotic Microfocuser\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eARCO 3\"\u003c\/strong\u003e Robotic Rotator\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI want to use a 3-inch diagonal for visual on my SCT with an ESATTO 3\" focuser. Is this the right adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the correct adapter. It will thread onto your ESATTO 3\" focuser and provide the standard 3-inch receptacle needed to insert and secure your 3-inch diagonal, allowing you to build a robust visual train for your telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIf I'm building an imaging train with an ESATTO 3\" and ARCO 3\" on my refractor, what role does this visual back play?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn an imaging train, this visual back serves as the final connection point if your camera or off-axis guider has a 3-inch nosepiece. It ensures a solid, coaxial link between your rotator\/focuser stack and your imaging sensor, which is critical for maintaining sharp, round stars across the 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\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913376723229,"sku":"PLL-PL8410010","price":119.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-3-visual-back-for-ESATTO-3-and-ARCO-3-1_092a4427-cd62-4232-b970-23632e584094.jpg?v=1789090066"},{"product_id":"primalucelab-pl3600387","title":"PrimaLuceLab Adapter from M98 to M54 with stop ring for ESATTO 3,5” LP","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects accessories with M54 female threads to the ESATTO 3.5\" LP focuser\u003c\/li\u003e\n\u003cli\u003eAdds a minimal 5mm of optical thickness to the imaging train\u003c\/li\u003e\n\u003cli\u003eFeatures an integrated M54 stop ring for precise rotational camera framing\u003c\/li\u003e\n\u003cli\u003eThreads directly onto the ESATTO 3.5\" LP's M98 draw tube\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\u003eAdapter from M98 to M54 with stop ring for ESATTO 3,5” LP\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter from M98 to M54 with stop ring for ESATTO 3.5” LP provides a secure, rigid connection for your M54-threaded accessories, adding only 5mm of optical thickness 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\u003eM54 Connection with Rotational Framing and 5mm Optical Path\u003c\/h3\u003e\n\u003cp\u003eThis adapter provides the essential mechanical link between the M98 male thread on the ESATTO 3.5\" LP focuser's draw tube and the common M54 female thread found on cameras, filter wheels, and off-axis guiders. Its design consumes just 5mm of precious back focus, ensuring you have maximum space for the rest of your imaging components.\u003c\/p\u003e\n\u003cp\u003eThe key feature is the integrated M54 stop ring. This mechanism allows you to achieve perfect camera orientation independent of the thread position. Simply loosen the stop ring, rotate your camera to the ideal angle for framing your target, and then tighten the ring to lock it in place, preventing any rotation as you secure the main adapter thread.\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 PrimaLuceLab M98 to M54 adapter for the ESATTO 3.5\" LP?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter's main purpose is to connect any camera, filter wheel, or other astrophotography accessory that has a standard \u003cstrong\u003eM54 female thread\u003c\/strong\u003e to the \u003cstrong\u003eM98 male thread\u003c\/strong\u003e on the draw tube of an ESATTO 3.5\" LP robotic focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on the M98 to M54 adapter improve astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eM54 stop ring\u003c\/strong\u003e allows you to control the final rotational angle of your camera. This is critical for proper framing of celestial objects, such as aligning your camera sensor with the long axis of a galaxy. You can set the angle precisely without it changing as you tighten the adapter, ensuring perfect composition.\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 PrimaLuceLab M98 to M54 adapter use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter has an optical thickness of just \u003cstrong\u003e5mm\u003c\/strong\u003e. This minimal length helps preserve the available back focus in your imaging train, leaving more room for other essential accessories like off-axis guiders and filter wheels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this PrimaLuceLab M98 to M54 adapter to orient my camera for framing the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. This is exactly what the stop ring is designed for. After threading the adapter onto your ESATTO 3.5\" LP, you can rotate your attached camera to align its sensor with the elongated shape of the Andromeda Galaxy (M31) and then lock it in that position using the stop ring for optimal framing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a filter wheel with an M54 female thread. Will this adapter connect it to my ESATTO 3.5\" LP focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This adapter is designed specifically for this purpose. It will thread directly into the M98 draw tube of your ESATTO 3.5\" LP and provide a secure M54 male thread to connect your filter wheel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the PrimaLuceLab M98 to M54 adapter on my ESATTO 3.5\" LP?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is straightforward. You simply thread the M98 side of the adapter directly onto the draw tube of the ESATTO 3.5\" LP focuser until it is snug. Then, you can attach your M54-threaded accessory to the other side of 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\u003eOptical Thickness\u003c\/td\u003e\n\u003ctd\u003e5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Side Connection\u003c\/td\u003e\n\u003ctd\u003eM98 Male Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Side Connection\u003c\/td\u003e\n\u003ctd\u003eM54 Male Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab ESATTO 3.5\" LP Focuser\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\"\u003eAdapter from M98 to M54 with stop 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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913379410205,"sku":"PLL-PL3600387","price":175.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-Adapter-from-M98-to-M54-with-stop-ring-for-ESATTO-3-5-LP-1_8fdc70af-236e-4f4c-b99d-b91546013e87.jpg?v=1789090096"},{"product_id":"primalucelab-pl3600363","title":"PrimaLuceLab Adapter from M98 to M68 with stop ring for ESATTO 3,5” LP","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects ESATTO 3.5\" LP focuser to M68 threaded accessories\u003c\/li\u003e\n\u003cli\u003eConverts M98 male draw tube thread to an M68 female thread\u003c\/li\u003e\n\u003cli\u003eFeatures an integrated stop ring for precise rotational adjustment\u003c\/li\u003e\n\u003cli\u003eEnsures a secure, rigid connection for cameras and filter wheels\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\u003eAdapter from M98 to M68 with stop ring for ESATTO 3,5” LP\u003c\/h2\u003e\n      \u003cp\u003eThis PrimaLuceLab adapter converts the M98 male draw tube thread of the ESATTO 3.5\" LP focuser to a standard M68 female thread, featuring an integrated stop ring to lock your camera's rotation for precise framing of celestial objects.\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\u003eESATTO 3.5\" LP: Native M98 to M68 Thread Conversion\u003c\/h3\u003e\n      \u003cp\u003eThis adapter bridges the M98 draw tube of your ESATTO 3.5\" LP robotic focuser to the widely used M68x1 thread standard. The result is a secure, direct-threaded attachment point for high-end cameras, large filter wheels, and other accessories, ensuring a rigid and flexure-free 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\u003eCamera Framing Control: The Integrated M68 Stop Ring\u003c\/h3\u003e\n      \u003cp\u003eThe key feature of this adapter is the integrated M68 stop ring. After threading your camera on, you can loosen the ring, rotate your entire imaging train to the ideal angle for your target, and then lock it firmly in place. This provides critical compositional control without needing to rotate the entire focuser or telescope.\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 PrimaLuceLab Adapter from M98 to M68 for the ESATTO 3.5\" LP?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter's main purpose is to \u003cstrong\u003econvert the M98 male thread\u003c\/strong\u003e on the draw tube of an ESATTO 3.5\" LP focuser to a \u003cstrong\u003eversatile M68 female thread\u003c\/strong\u003e. This allows you to securely attach a wide range of astrophotography accessories, such as cameras and filter wheels, that use the M68 standard.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on the M98 to M68 adapter help with astrophotography?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe integrated \u003cstrong\u003eM68 stop ring\u003c\/strong\u003e allows you to precisely set the rotational angle of your camera. You can thread your camera on, loosen the ring to orient your camera sensor perfectly with your target, and then tighten the ring to lock it in that position. This is essential for achieving optimal framing for your images.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhich focuser is this M98 to M68 adapter designed for?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter is specifically designed for the \u003cstrong\u003ePrimaLuceLab ESATTO 3.5\" LP\u003c\/strong\u003e low-profile robotic focuser. It threads directly onto the M98 draw tube of this model.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI have a full-frame camera with an M68 thread. Can I use this adapter to connect it to my ESATTO 3.5\" LP focuser for imaging the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, absolutely. This adapter is the correct component to connect your M68-threaded camera to the ESATTO 3.5\" LP. The stop ring will be particularly useful for framing a large target like the Andromeda Galaxy (M31) to fit perfectly on your full-frame sensor.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIf I attach a heavy filter wheel and camera to the ESATTO 3.5\" LP using this adapter, will the stop ring hold the rotation securely?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, the stop ring is designed to provide a secure lock, maintaining the rotational position even with a heavy imaging train. Once tightened, it prevents unwanted rotation, ensuring your framing remains consistent throughout an imaging session.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this adapter change the thread type from the ESATTO 3.5\" LP focuser?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, that is its function. It adapts the focuser's native \u003cstrong\u003eM98 male thread\u003c\/strong\u003e and presents a standard \u003cstrong\u003eM68 female thread\u003c\/strong\u003e on the camera side, expanding the range of compatible accessories.\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\u003eCompatible Focuser\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab ESATTO 3.5\" LP\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFocuser-Side Connection\u003c\/td\u003e\n\u003ctd\u003eM98 Male Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eAccessory-Side Connection\u003c\/td\u003e\n\u003ctd\u003eM68 Female Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eKey Feature\u003c\/td\u003e\n\u003ctd\u003eIntegrated Rotational Stop Ring\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\"\u003eAdapter from M98 to M68 with stop 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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913379606813,"sku":"PLL-PL3600363","price":175.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-Adapter-from-M98-to-M68-with-stop-ring-for-ESATTO-3-5-LP-1_517915b3-89ca-4575-ab52-03f56e66c764.jpg?v=1789090104"},{"product_id":"primalucelab-pl3600385","title":"PrimaLuceLab Adapter from M98 to M72 female for ESATTO 3,5” LP","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M72 threaded accessories to the ESATTO 3.5” LP focuser\u003c\/li\u003e\n\u003cli\u003eThreads directly to the focuser's M98 draw tube\u003c\/li\u003e\n\u003cli\u003eAdds 0mm of optical thickness to the imaging train\u003c\/li\u003e\n\u003cli\u003eProvides a secure, rigid connection for cameras, reducers, and correctors\u003c\/li\u003e\n\u003cli\u003eMachined from black anodized aluminum for 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\u003eAdapter from M98 to M72 female for ESATTO 3,5” LP\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter from M98 to M72 is the essential component for integrating accessories with M72 male threads into your ESATTO 3.5” LP imaging system. This adapter provides a direct, secure connection from the focuser's M98 draw tube to your M72-threaded accessory. Engineered to add precisely 0mm of optical thickness, it ensures your calculated back focus remains completely unaffected.\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\u003eM98 to M72 Connection for the ESATTO 3.5\" LP Focuser\u003c\/h3\u003e\n\u003cp\u003eThis adapter solves a fundamental connectivity challenge: attaching the common M72 thread standard to the large M98 draw tube of the ESATTO 3.5\" LP focuser. By threading directly onto the focuser, it creates a rigid, flex-free junction point for heavy cameras, field flatteners, or focal reducers, ensuring perfect optical alignment.\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 Thickness: Preserve Your Critical Back Focus\u003c\/h3\u003e\n\u003cp\u003eIn any astrophotography setup, maintaining the correct back focus is non-negotiable. This adapter is designed with a zero-profile, meaning it consumes 0mm of your available back focus distance. This allows you to build complex imaging trains with multiple accessories like off-axis guiders and filter wheels without sacrificing precious millimeters of spacing.\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 focuser is the M98 to M72 adapter designed for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed exclusively for the \u003cstrong\u003ePrimaLuceLab ESATTO 3.5” LP\u003c\/strong\u003e robotic focuser. It threads directly onto the M98 male thread of the focuser's draw tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the benefit of this M98 to M72 adapter having zero optical thickness?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA zero optical thickness means the adapter does not consume any of your system's available back focus. This is critical for imagers using focal reducers or field flatteners that have very strict spacing requirements to achieve a perfectly corrected field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a corrector with an M72 male thread that needs to connect to my ESATTO 3.5\" LP. Is this the right part?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the exact adapter for that application. It will allow you to securely thread your M72 corrector directly to the ESATTO 3.5\" LP focuser draw tube, creating a solid and precise connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this M98 to M72 adapter attach to the ESATTO 3.5\" LP focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter features an internal M98 female thread that screws directly onto the external M98 male thread found on the end of the ESATTO 3.5\" LP's draw tube. No tools are required for installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this M98 to M72 adapter to attach my DSLR camera to the ESATTO 3.5\" LP?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNot by itself. This adapter provides an M72 female thread. To connect a DSLR, you would need an additional M72 to T-Ring adapter that is specific to your camera's brand (e.g., Canon EOS or Nikon F).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes PrimaLuceLab offer other adapters for the ESATTO 3.5\" LP focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. PrimaLuceLab provides a complete ecosystem of adapters for the ESATTO 3.5\" LP focuser to connect various instruments and accessories. Options include adapters for M68 threads, 3.3\" SC threads for large Celestron telescopes, and 3\" visual backs for slip-fit eyepieces or 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\u003eFocuser Side Connection\u003c\/td\u003e\n\u003ctd\u003eM98 x 1 Female Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessory Side Connection\u003c\/td\u003e\n\u003ctd\u003eM72 x 1 Female Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab ESATTO 3.5” LP Focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Thickness\u003c\/td\u003e\n\u003ctd\u003e0mm\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\"\u003eAdapter from M98 to M72 female for ESATTO 3,5” LP\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\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913379901725,"sku":"PLL-PL3600385","price":175.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-Adapter-from-M98-to-M72-female-for-ESATTO-3-5-LP-1_ebf4222a-d634-44e3-993d-8c07143fb1a6.jpg?v=1789090111"},{"product_id":"primalucelab-pl8410011","title":"PrimaLuceLab 3\" Visual Back for ESATTO 3.5” LP","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts ESATTO 3.5\" LP focusers to accept 3\" accessories\u003c\/li\u003e\n\u003cli\u003eInternal brass compression ring prevents scratches\u003c\/li\u003e\n\u003cli\u003eMultiple locking screws ensure a secure, centered fit\u003c\/li\u003e\n\u003cli\u003eDesigned to support heavy cameras and imaging trains\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\u003e3\" Visual Back for ESATTO 3.5” LP\u003c\/h2\u003e\n\u003cp\u003eThis visual back provides a robust and secure connection point for attaching any 3-inch nosepiece, eyepiece, or camera to your PrimaLuceLab ESATTO 3.5” LP robotic focuser. It is engineered specifically to handle the weight of demanding astrophotography setups while protecting your equipment from damage. The design integrates a non-marring brass compression ring and a multi-point locking system to guarantee a perfectly centered and rigid 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\u003eSecure, Non-Marring Connection for 3\" Accessories\u003c\/h3\u003e\n\u003cp\u003eWhen using heavy cameras or large format eyepieces, a simple thumbscrew is not enough to prevent flexure or slippage. This visual back uses multiple locking screws distributed around the collar, allowing you to apply even, firm pressure for a solid fit. Inside, a brass compression ring grips your accessory's barrel securely without leaving the scratches and gouges common with single-screw designs, preserving the finish on your valuable equipment.\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 function of the PrimaLuceLab 3\" visual back for ESATTO 3.5\" LP?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary function is to adapt the M98 drawtube thread of the \u003cstrong\u003eESATTO 3.5\" LP focuser\u003c\/strong\u003e so that it can accept accessories with a standard \u003cstrong\u003e3-inch nosepiece\u003c\/strong\u003e. This allows you to connect large format cameras, diagonals, and eyepieces directly to the focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 3\" visual back prevent damage to eyepieces and camera nosepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt features an \u003cstrong\u003einternal brass compression ring\u003c\/strong\u003e. When you tighten the locking screws, this soft metal ring clamps down evenly around the barrel of your accessory. Unlike direct screw-on-barrel contact, this method avoids scratching, denting, or marring the surface of your equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the ESATTO 3.5\" LP visual back recommended for heavy imaging setups?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. It is specifically designed for this purpose. The use of multiple locking screws provides a much more secure and stable connection than a single thumbscrew, preventing tilt and flexure even with heavy cameras, filter wheels, and off-axis guiders attached.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich focuser does this 3\" visual back connect to?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed exclusively for the \u003cstrong\u003ePrimaLuceLab ESATTO 3.5” LP (Low Profile)\u003c\/strong\u003e robotic focuser. It will not fit other ESATTO models or focusers from other brands.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this adapter allow me to attach my ESATTO focuser to a Celestron EdgeHD telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this is an output adapter, not an input adapter. This 3\" visual back connects accessories \u003cstrong\u003eto the drawtube\u003c\/strong\u003e of the ESATTO focuser. To connect the entire ESATTO focuser \u003cstrong\u003eto the back of a telescope\u003c\/strong\u003e like a Celestron SCT or EdgeHD, you would need a separate telescope-side adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIf I'm imaging a large target like the Andromeda Galaxy (M31), why is a secure connection from this visual back important?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eImaging large targets like the Andromeda Galaxy (M31) often requires long exposures. Any amount of tilt or flexure in the imaging train, which can be caused by a weak accessory connection, will result in elongated or trailed stars, especially at the corners of the frame. The secure, multi-screw locking system of this visual back ensures your camera remains perfectly orthogonal to the light path, maintaining sharp stars across the entire field of 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\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\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913380426013,"sku":"PLL-PL8410011","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-3-visual-back-for-ESATTO-3-5-LP-1_42740976-03c3-4ec1-8d5e-a02565158cda.jpg?v=1789090119"},{"product_id":"primalucelab-pl3600424","title":"PrimaLuceLab M48x0.75 female adapter for ARCO 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects ARCO 2\" Rotator to M48x0.75 Male Threads\u003c\/li\u003e\n\u003cli\u003eAdds Only 2mm of Optical Thickness\u003c\/li\u003e\n\u003cli\u003eCreates a 22mm Total Path Length with ARCO 2\"\u003c\/li\u003e\n\u003cli\u003eEnables Integration with Common Correctors and 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\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\u003eM48x0.75 female adapter for ARCO 2\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab M48x0.75 female adapter for the ARCO 2\" rotator adds just 2mm of optical thickness, enabling a secure, rigid connection to common field flatteners, reducers, and focusers. When installed, the total optical path of the rotator and adapter becomes a minimal 22mm, preserving critical back focus in 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\u003eSeamless M48 Integration for Your ARCO 2\" Rotator\u003c\/h3\u003e\n\u003cp\u003eThis adapter directly threads onto the ARCO 2\" rotator, presenting a female M48x0.75 thread to your imaging train. This is the standard connection for many popular coma correctors, field flatteners, and off-axis guiders, allowing you to integrate the high-precision ARCO rotator without custom machining.\u003c\/p\u003e\n\u003cp\u003eEngineered to be as thin as possible, the adapter contributes only 2mm to the optical path. This brings the total thickness of the ARCO 2\" rotator assembly to 22mm, a critical factor for systems with limited back focus, such as those using reducers or fast refractors.\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 total optical thickness when using the M48x0.75 female adapter with the ARCO 2\" rotator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter itself adds \u003cstrong\u003e2mm\u003c\/strong\u003e of thickness. When combined with the 20mm thick ARCO 2\" rotator, the total optical path length is \u003cstrong\u003e22mm\u003c\/strong\u003e. You must account for this distance in your back focus calculations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the M48x0.75 female adapter for ARCO 2\" help when imaging with a Newtonian and coma corrector?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eMost coma correctors for Newtonian telescopes terminate in a male M48x0.75 thread. This adapter allows you to place the ARCO 2\" rotator directly behind the corrector for precise field de-rotation, which is essential for achieving round stars during long exposures on an alt-azimuth mount or for framing objects perfectly on an equatorial mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this M48x0.75 female adapter for ARCO 2\" to connect directly to my camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt depends on your camera's connection. If your camera or filter wheel has a male M48x0.75 thread and the back focus is correct, this adapter will create the physical connection. Always verify your total back focus distance against your corrector's requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need the M48x0.75 female adapter for ARCO 2\" if I am connecting to an ESATTO focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis depends on the specific ESATTO model and any reducers in your train. Many ESATTO focusers have optional adapters that terminate in M48 male threads, in which case this adapter would be the correct choice to attach the ARCO 2\" rotator.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this M48x0.75 adapter work with my full-frame camera and reducer on my Celestron EdgeHD telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a common application. Reducers for EdgeHD telescopes often require a specific back focus and use M48 threads to connect to the camera. This adapter lets you insert the ARCO 2\" rotator into that M48-threaded imaging train, but you must ensure the final 22mm thickness of the rotator and adapter fits within your reducer's back focus budget.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter required to control the ARCO 2\" with a SESTO SENSO 2?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is purely a mechanical connector. The electronic control of the ARCO 2\" rotator is managed through its connection to a SESTO SENSO 2 or an EAGLE computer, regardless of which mechanical adapters are used.\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\u003eFemale M48x0.75 Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eARCO 2\" Rotator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Thickness (Adapter Only)\u003c\/td\u003e\n\u003ctd\u003e2mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Thickness (Combined)\u003c\/td\u003e\n\u003ctd\u003e22mm (with ARCO 2\" Rotator)\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\"\u003eM48x0.75 female adapter for ARCO 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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913394319645,"sku":"PLL-PL3600424","price":69.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-M48x0-75-female-adapter-for-ARCO-2-1_b430e8b9-20e5-4589-85eb-6897d77cc7fb.jpg?v=1789090296"},{"product_id":"primalucelab-pl3600427","title":"PrimaLuceLab M56x1 Male Adapter for ARCO 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects ARCO 2\" Rotators to M56x1 Female Threads\u003c\/li\u003e\n\u003cli\u003eEnables a Solid Mechanical Connection for Astrophotography\u003c\/li\u003e\n\u003cli\u003eIntegrates with SESTO SENSO 2 Controlled Focusers\u003c\/li\u003e\n\u003cli\u003eMaintains a Low-Profile Optical Path\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\u003eM56x1 Male Adapter for ARCO 2\"\u003c\/h2\u003e\n\u003cp\u003eThis M56x1 male adapter provides the essential mechanical link between the PrimaLuceLab ARCO 2\" rotator and focusers that utilize a female M56x1 thread. It is engineered to create a secure, non-flexing connection, ensuring your imaging train remains rigid and perfectly aligned for precise framing and rotation.\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 ARCO 2\" Rotator to M56x1 Focusers\u003c\/h3\u003e\n\u003cp\u003eFor imagers building an automated setup with PrimaLuceLab components, this adapter is a required part, not an optional accessory. It allows the ARCO 2\" rotator to be directly and securely threaded onto a compatible focuser, forming a unified system. This integration is critical when using a SESTO SENSO 2 focusing motor, as it ensures the entire assembly—focuser, rotator, and camera—operates as a single, stable unit controlled through the PLAY software ecosystem.\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 M56x1 male adapter for ARCO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts sole purpose is to create a secure, threaded connection between a PrimaLuceLab ARCO 2\" rotator and a telescope focuser that has a female M56x1 thread. This allows you to integrate the rotator into your optical train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich specific thread type does this adapter connect to on a focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed exclusively for focusers that present a \u003cstrong\u003efemale M56x1 thread\u003c\/strong\u003e. It is crucial to verify your focuser's thread specification before purchasing, as other \"M56\" threads with different pitches will not be compatible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the M56x1 adapter for ARCO 2\" help when imaging a target like the Andromeda Galaxy (M31) that requires precise framing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBy providing a rigid, non-slip connection, the adapter ensures that when the ARCO 2\" rotator adjusts your camera's orientation to perfectly frame M31, there is no mechanical flex or sag. This stability is essential for maintaining sharp focus and consistent framing across multiple long exposures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need this adapter to use the PrimaLuceLab ARCO 2\" rotator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou need this specific adapter \u003cstrong\u003eonly if your focuser's connection thread is M56x1 female\u003c\/strong\u003e. The ARCO 2\" rotator requires different adapters for other focuser thread types. This part is not a universal requirement for the rotator itself, but for this particular connection standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI am building an automated imaging rig with an ARCO 2\" and a SESTO SENSO 2 on my refractor. Why is this M56x1 adapter necessary?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn an automated system, every component must be securely linked. This adapter ensures the ARCO 2\" is rigidly attached to the focuser that the SESTO SENSO 2 is controlling. This prevents any rotational movement or misalignment between the focuser and rotator, which is critical for accurate automated focusing and field rotation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the M56x1 adapter for ARCO 2\" difficult to install?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, installation is straightforward. It simply threads onto the ARCO 2\" rotator and then the entire assembly threads into the M56x1 female port on your focuser. No special tools are required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913394581789,"sku":"PLL-PL3600427","price":69.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-M56x1-male-adapter-for-ARCO-2-1_98ba1247-9099-4498-a1a4-8c330fbdbbf2.jpg?v=1789090303"},{"product_id":"primalucelab-pl3600466","title":"PrimaLuceLab 3\" Nosepiece for ARCO 3\" Rotator","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects ARCO 3\" rotator to any standard 3\" focuser visual back\u003c\/li\u003e\n\u003cli\u003eEnables a rigid, secure connection for your imaging train\u003c\/li\u003e\n\u003cli\u003eDesigned for integration with the SESTO SENSO 2 focusing motor\u003c\/li\u003e\n\u003cli\u003eCompletes the PrimaLuceLab ecosystem for robotic 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\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\u003e3\" Nosepiece for ARCO 3\" Rotator\u003c\/h2\u003e\n      \u003cp\u003eThe PrimaLuceLab 3\" Nosepiece for the ARCO 3\" provides the essential mechanical interface to connect your robotic rotator to any focuser equipped with a standard 3-inch visual back. This component ensures a secure, non-flexing link in your optical train, which is critical for maintaining precise alignment during automated imaging sessions controlled by the SESTO SENSO 2.\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 Mechanical Link for 3-Inch Focusers\u003c\/h3\u003e\n      \u003cp\u003eThis nosepiece is engineered to bridge the gap between PrimaLuceLab's ARCO 3\" rotator and the large-format focusers found on high-end refractors and astrographs. By inserting directly into a 3\" visual back, it creates a solid, stable platform for your entire imaging assembly, preventing tilt and sag that can ruin long exposures.\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\u003eUnified Control Within the PrimaLuceLab Ecosystem\u003c\/h3\u003e\n      \u003cp\u003eBeyond the physical connection, this nosepiece is a key part of PrimaLuceLab's integrated ecosystem. It's designed to work in concert with a SESTO SENSO 2 motor installed on the same focuser, allowing the PLAY software or an EAGLE computer to manage both focusing and field rotation from a single control point.\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 3\" nosepiece for the ARCO 3\"?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIts primary function is to physically connect the \u003cstrong\u003ePrimaLuceLab ARCO 3\" rotator\u003c\/strong\u003e to a telescope focuser that has a \u003cstrong\u003e3-inch visual back\u003c\/strong\u003e. It acts as a secure adapter, allowing you to integrate the rotator into a large-format imaging train.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this ARCO 3\" nosepiece integrate with the SESTO SENSO 2?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis nosepiece allows the ARCO 3\" rotator to be mounted on a focuser that is being controlled by a \u003cstrong\u003eSESTO SENSO 2\u003c\/strong\u003e. This creates a complete, electronically controlled system where both focus and rotation can be managed together through PrimaLuceLab's PLAY software, enabling advanced features like field de-rotation and automated focusing routines.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this 3\" nosepiece fit my William Optics or Stellarvue focuser with a 3\" opening?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, this nosepiece is designed to be compatible with any standard 3-inch focuser visual back or accessory port. It provides the correct insertion barrel to securely mount your ARCO 3\" rotator onto focusers from most major brands that use this common large format.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs this the correct adapter to use the ARCO 3\" on my Celestron EdgeHD with a 3\" Feather Touch focuser?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. If you have upgraded your Celestron EdgeHD telescope with an aftermarket 3-inch focuser, such as one from Feather Touch or MoonLite, this 3\" nosepiece is the correct component to attach the ARCO 3\" rotator to that focuser.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the 3\" nosepiece for ARCO 3\" add significant length to the optical path?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eWhile all adapters consume some back focus, this nosepiece is designed to be as compact as possible. However, you must always account for its physical length when calculating the total back focus of your imaging train to ensure you can reach focus with your camera.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need any other hardware to install the ARCO 3\" rotator using this nosepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis nosepiece provides the connection from the rotator to the focuser. You will still need the ARCO 3\" rotator itself, a focuser with a 3-inch visual back, and typically a SESTO SENSO 2 for integrated electronic control. Ensure your focuser's compression ring or thumbscrews are in good working order to securely hold the nosepiece.\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      \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\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913395499293,"sku":"PLL-PL3600466","price":91.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-3-nosepiece-for-ARCO-3-1_a1849536-8648-458c-bf02-e5a489ed0dc9.jpg?v=1789090319"},{"product_id":"primalucelab-pl3600465","title":"PrimaLuceLab M63x1 adapter for ARCO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects ARCO 3\" Rotator to M63x1 Threads\u003c\/li\u003e\n\u003cli\u003eEnables SESTO SENSO 2 Control Integration\u003c\/li\u003e\n\u003cli\u003eLow-Profile Design Minimizes Back Focus Usage\u003c\/li\u003e\n\u003cli\u003ePrecision-Machined for 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\u003eM63x1 adapter for ARCO 3\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab M63x1 adapter provides a secure, threaded connection between the ARCO 3\" rotator and any focuser or corrector with a matching M63x1 female thread, maintaining critical alignment for precise field de-rotation.\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\u003eSeamless M63x1 Integration for the ARCO 3\" Rotator\u003c\/h3\u003e\n\u003cp\u003eThis adapter is the key component for integrating the ARCO 3\" rotator into optical trains that utilize the common M63x1 thread standard. It provides the specific male M63x1 thread required to attach the rotator to a wide range of focusers and field correctors from various manufacturers.\u003c\/p\u003e\n\u003cp\u003eBy creating a solid physical link, the adapter also completes the electronic connection pathway. It allows your SESTO SENSO 2, when installed on the focuser, to communicate with and precisely control the ARCO rotator, unifying your focusing and rotation into a single, software-driven system.\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 M63x1 adapter for ARCO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary function is to physically connect the PrimaLuceLab ARCO 3\" robotic rotator to a telescope focuser, drawtube, or field corrector that has a female M63x1 thread. This creates a secure, rigid connection essential for astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich focusers or correctors are compatible with this M63x1 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is compatible with any astronomy device that presents a \u003cstrong\u003efemale M63x1 thread\u003c\/strong\u003e for accessories. This is a common standard on many larger refractors and third-party focusers. Always check the thread specification of your equipment before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this M63x1 adapter help with controlling the ARCO 3\" rotator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the adapter itself is a mechanical part, it enables the full electronic integration of the PrimaLuceLab ecosystem. By connecting the ARCO 3\" to your focuser, it allows a \u003cstrong\u003eSESTO SENSO 2\u003c\/strong\u003e robotic focusing motor mounted on that focuser to control the rotator via the system's passthrough connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill using the M63x1 adapter for ARCO 3\" consume a lot of back focus in my imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is designed to be very low-profile. It adds minimal optical path length, helping you preserve as much critical back focus as possible for other components like off-axis guiders and filter wheels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a refractor with a focuser that has an M63x1 female thread. Is this the correct adapter to add the ARCO 3\" rotator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, if your refractor's focuser terminates in a female M63x1 thread, this is the specific adapter you need to install the ARCO 3\" rotator directly onto it. It will provide the necessary male M63x1 thread for a secure attachment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIf I install the M63x1 adapter for ARCO 3\", can I still use my SESTO SENSO 2 to control both focus and rotation?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. This is a key benefit of the PrimaLuceLab system. The M63x1 adapter for ARCO 3\" is designed to facilitate this exact setup, allowing you to control both your focuser (via SESTO SENSO 2) and your rotator (ARCO 3\") from a single software interface like PLAY or ASCOM.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913395695901,"sku":"PLL-PL3600465","price":97.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-M63x1-adapter-for-ARCO-3-1_3ad43ca6-0ae0-4085-996c-1cdd59d77a13.jpg?v=1789090327"},{"product_id":"primalucelab-pl3600468","title":"PrimaLuceLab M65x1 adapter for ARCO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects ARCO 3\" rotator to M65x1 female threads\u003c\/li\u003e\n\u003cli\u003eAdds only 3.5mm of optical thickness to the imaging train\u003c\/li\u003e\n\u003cli\u003eProvides a secure, threaded connection for focusers and correctors\u003c\/li\u003e\n\u003cli\u003eEnables robotic field rotation and de-rotation\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\u003eM65x1 adapter for ARCO 3\"\u003c\/h2\u003e\n\u003cp\u003eThe M65x1 adapter for ARCO 3\" provides a rigid, threaded connection between the rotator and your focuser or corrector, consuming just 3.5mm of precious back focus in your 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 3.5mm Low-Profile M65x1 Interface\u003c\/h3\u003e\n\u003cp\u003eThis adapter is engineered for a single, critical purpose: to interface the PrimaLuceLab ARCO 3\" rotator with any focuser or field corrector that terminates in an M65x1 female thread. Its key design feature is its minimal optical thickness of only 3.5mm, ensuring it can be integrated into complex imaging trains without significantly impacting your back focus budget.\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\u003eConnecting the ARCO 3\" Rotator to Your Imaging Train\u003c\/h3\u003e\n\u003cp\u003eBy using this adapter, you can add the high-precision framing and de-rotation capabilities of the ARCO 3\" to your existing setup. It creates a secure, all-threaded link that prevents flexure and maintains perfect alignment between your corrector and rotator. This is the essential component for unlocking the full potential of the PrimaLuceLab ecosystem on optical systems utilizing the M65x1 standard.\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 function of the M65x1 adapter for ARCO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter allows you to securely connect the PrimaLuceLab ARCO 3\" rotator to a telescope focuser or field corrector that has a female M65x1 thread. It acts as the bridge between these two components.\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 M65x1 adapter for ARCO 3\" consume?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter has an optical thickness of \u003cstrong\u003e3.5mm\u003c\/strong\u003e. This is the amount of back focus it will use in your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this M65x1 adapter required to use the ARCO 3\" rotator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt is only required if the component you are attaching the ARCO 3\" to has a female M65x1 thread. The ARCO rotator requires different adapters for different connection standards (like M68, M81, etc.), and this one is specifically for the M65x1 size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this adapter to connect my camera directly to a focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is not designed for connecting a camera. It is specifically made to connect the ARCO 3\" rotator to a focuser or corrector. You will need other adapters to connect your camera to the output side of the ARCO rotator.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a William Optics refractor with an M65 focuser thread. Will this adapter let me attach the ARCO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, if your William Optics refractor's focuser or dedicated flattener terminates in a standard female M65x1 thread, this adapter is the correct part to install the ARCO 3\" rotator into your optical train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the M65x1 adapter for ARCO 3\" with my Sky-Watcher Esprit telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eMany Sky-Watcher Esprit models come with a corrector that has an M65 female thread. You would first unthread any existing adapters from your corrector, then thread the M65x1 adapter for ARCO 3\" directly onto the corrector. Finally, you can attach the ARCO 3\" rotator to the other side of this 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\u003eThread Size\u003c\/td\u003e\n\u003ctd\u003eM65x1 (Male)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eARCO 3\" Rotator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Thickness\u003c\/td\u003e\n\u003ctd\u003e3.5mm\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\"\u003eM65x1 adapter for ARCO 3\"\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\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913395892509,"sku":"PLL-PL3600468","price":97.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-M65x1-adapter-for-ARCO-3-1_73b96a9f-0070-4305-9944-f990c48f223c.jpg?v=1789090335"},{"product_id":"primalucelab-pl3600463","title":"PrimaLuceLab M86x1 adapter for ARCO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnects ARCO 3\" Rotator:\u003c\/strong\u003e Designed specifically for a secure, rigid fit with the PrimaLuceLab ARCO 3\" rotator.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM86x1 Male Thread:\u003c\/strong\u003e Provides a standard M86x1 male thread for connecting to compatible focusers and field correctors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEcosystem Integration:\u003c\/strong\u003e Enables a fully-threaded connection within the PrimaLuceLab suite of automation products.\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\u003eM86x1 adapter for ARCO 3\"\u003c\/h2\u003e\n      \u003cp\u003eThe PrimaLuceLab M86x1 adapter creates a secure, threaded connection between the ARCO 3\" rotator and any focuser or corrector equipped with a female M86x1 thread, enabling precise, software-controlled field rotation within 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\u003eARCO 3\" Integration: Connecting Your M86x1 Focuser\u003c\/h3\u003e\n      \u003cp\u003eThis adapter is the key mechanical link for integrating the ARCO 3\" rotator into an imaging train that uses the common M86x1 thread standard. By creating a rigid, all-threaded connection, it eliminates potential flexure and ensures the rotator's position is perfectly aligned with the optical axis.\u003c\/p\u003e\n      \u003cp\u003eWhen paired with the ARCO 3\" and controlled via a SESTO SENSO or EAGLE unit, this adapter helps build a fully remote, automated imaging system. It allows the rotator to function seamlessly with your existing M86x1-threaded focuser for precise framing and field de-rotation.\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\u003eM86x1 Threading for Common Large-Format Correctors\u003c\/h3\u003e\n      \u003cp\u003eThe M86x1 thread is frequently found on focusers and correctors designed for larger refractors and imaging systems. This adapter ensures that users of such equipment can directly incorporate the ARCO 3\" rotator without relying on less stable compression fittings or mismatched adapters.\u003c\/p\u003e\n      \u003cp\u003eWhether you are connecting to a large rack-and-pinion focuser or a dedicated field flattener, this adapter provides the specific interface required. It is a simple, single-purpose component designed to solve a critical compatibility challenge for advanced imagers.\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 M86x1 adapter for the ARCO 3\"?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter's sole purpose is to connect a PrimaLuceLab \u003cstrong\u003eARCO 3\" rotator\u003c\/strong\u003e to a focuser, field flattener, or other optical accessory that has a female \u003cstrong\u003eM86x1 thread\u003c\/strong\u003e. It creates a secure, rigid mechanical link between the two components.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhich focusers are compatible with this M86x1 adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAny focuser or corrector that presents a female M86x1 x 1mm pitch thread for connection is compatible. This thread size is common on larger focusers, often 3-inch or greater, from various manufacturers.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this M86x1 adapter fit into an imaging train with a large refractor and a full-frame camera?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIn a typical setup with a large refractor, the imaging train might be: \u003cstrong\u003eFocuser (with female M86x1 thread) -\u0026gt; This M86x1 Adapter -\u0026gt; ARCO 3\" Rotator -\u0026gt; OAG\/Filter Wheel -\u0026gt; Camera\u003c\/strong\u003e. The adapter ensures the rotator is securely mounted directly to the focuser, providing a solid foundation for the rest of the imaging equipment.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need other PrimaLuceLab products to use the M86x1 adapter for ARCO 3\"?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. This adapter is specifically designed to be used with the \u003cstrong\u003ePrimaLuceLab ARCO 3\" rotator\u003c\/strong\u003e. It has no function on its own and serves only to connect that specific rotator to an M86x1-threaded component.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the M86x1 adapter difficult to install on the ARCO 3\" rotator?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, installation is straightforward. The adapter simply threads onto the appropriate side of the ARCO 3\" rotator, and the combined unit then threads into your M86x1 focuser or corrector. No special tools are required.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIf my field flattener has an M86x1 thread, is this the correct adapter for my ARCO 3\"?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, this is the correct adapter. It allows you to place the ARCO 3\" rotator in front of your M86x1-threaded field flattener, ensuring your entire imaging assembly can be rotated as a single, rigid unit for perfect framing.\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      \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\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913396220189,"sku":"PLL-PL3600463","price":97.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-M86x1-adapter-for-ARCO-3-1_36e10c77-6a1f-43c9-8507-34a10bed2db3.jpg?v=1789090342"}],"url":"https:\/\/davidastro.com\/en-us\/collections\/primalucelab-adapters.oembed","provider":"David Astro","version":"1.0","type":"link"}