{"title":"PrimaLuceLab Visual Adapters","description":"\u003cp\u003ePrimaLuceLab visual adapters are visual backs that let you use eyepieces, diagonals and other accessories on ESATTO focusers and ARCO rotators. There are 2\" visual backs for the ESATTO 2\", ESATTO 2\" LP and ESATTO 3\", and 3\" visual backs for the ESATTO 3.5\" LP and for the ESATTO 3\" and ARCO 3\".\u003c\/p\u003e\u003cp\u003eThey suit imagers who also observe visually or need a standard clamp for a diagonal or camera adapter.\u003c\/p\u003e","products":[{"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-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-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-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-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"}],"url":"https:\/\/davidastro.com\/en-us\/collections\/primalucelab-visual-adapters.oembed","provider":"David Astro","version":"1.0","type":"link"}