{"product_id":"baader-planetarium-ufc-telescope-adapter-s70a-to-m57a","title":"Baader Planetarium UFC Telescope-Adapter S70a to M57a","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts Baader S70 Dovetail to an M57x0.75 Male Thread\u003c\/li\u003e\n\u003cli\u003eTelescope-Side Adapter for the Universal Filter Changer (UFC) System\u003c\/li\u003e\n\u003cli\u003eOptimized for Borg Telescopes with M57 Focusers\u003c\/li\u003e\n\u003cli\u003eUltra-Low Profile Minimizes Added Optical Path Length\u003c\/li\u003e\n\u003cli\u003eSecurely Mounts the UFC Base to Your Telescope's 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\u003eUFC Telescope-Adapter S70a to M57a\u003c\/h2\u003e\n\u003cp\u003eThe Baader UFC Telescope-Adapter S70a to M57a creates a secure, low-profile connection between the Baader Universal Filter Changer (UFC) system and telescopes using the M57x0.75 thread standard. This adapter attaches to the telescope side of the UFC base, converting the S70 dovetail receiver into a male M57 thread for direct integration into your imaging train. Specifically designed for Borg telescopes, its minimal physical height ensures that critical back focus is conserved.\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 Baader UFC to M57 Threads\u003c\/h3\u003e\n\u003cp\u003eThis adapter is a fundamental component for integrating the modular UFC system with a wide range of focusers and optical accessories. It allows you to mount the entire UFC assembly, containing your chosen filter slider, onto any female M57x0.75 threaded port. The result is a rigid, tilt-free connection essential for high-resolution imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA Minimal-Profile Adapter for Borg OTAs\u003c\/h3\u003e\n\u003cp\u003eWhile compatible with any M57 system, this UFC adapter is engineered with Borg telescopes in mind. These instruments often have precise back focus requirements, and this adapter's ultra-thin design consumes a negligible amount of optical path length. This makes it possible to achieve focus with complex setups that include reducers, correctors, and off-axis guiders.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUFC System Integration:\u003c\/strong\u003e Connects any UFC Base (telescope-side) to an M57 threaded focuser, rotator, or extension tube.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBorg Telescope Compatibility:\u003c\/strong\u003e Provides a direct, secure fit for Borg refractors and other telescopes that utilize the M57x0.75 thread standard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBack Focus Conservation:\u003c\/strong\u003e The extremely low-profile design is critical for maintaining focus position in imaging trains where every millimeter counts.\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 Baader UFC S70a to M57a adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary purpose is to connect the telescope-side S70 dovetail of a Baader Universal Filter Changer (UFC) base to a telescope or focuser that has a female M57x0.75 thread. It allows the UFC system to be integrated into specific imaging trains.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the UFC S70a to M57a adapter help manage back focus when imaging the Andromeda Galaxy (M31) with a Borg refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen imaging large targets like the Andromeda Galaxy (M31) with a Borg refractor and a reducer, back focus is often very limited. The UFC S70a to M57a adapter has an extremely thin profile, adding almost no length to the optical path. This ensures you can fit the UFC filter changer into the imaging train and still reach focus with your camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich side of the UFC system does the S70a to M57a adapter attach to?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis is a \u003cstrong\u003etelescope-sided adapter\u003c\/strong\u003e. It attaches to the side of the UFC base that faces the telescope objective, converting the S70 dovetail into an M57 male thread that connects to your focuser or other upstream accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the UFC S70a to M57a adapter compatible with telescopes other than Borg?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. While it is specifically highlighted for Borg telescopes, this adapter will work with any telescope, focuser, or accessory that presents a female M57x0.75 thread for connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIf I'm using a Borg 71FL refractor, will the UFC S70a to M57a adapter allow me to connect the Baader UFC?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, provided your Borg 71FL focuser or an adapter on it terminates in a female M57x0.75 thread. This UFC adapter provides the correct male M57 thread to physically mount the UFC base onto your telescope's optical train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the UFC S70a to M57a adapter to attach a camera to the UFC?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this is a telescope-side adapter. To attach a camera, you need a separate camera-side UFC adapter that matches your camera's specific thread or flange, such as M54 or M48.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e54\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eExpanding Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eS70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM54 x 0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":52913143316765,"sku":"BAA-2459137","price":53.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/BaaderPlanetarium-UFC-Telescope-Adapter-S70a-to-M57a-Optical-height-1-mm-1_1cbb48dc-af0a-4480-88ab-71f9d5bb8ca7.jpg?v=1789086735","url":"https:\/\/davidastro.com\/en-us\/products\/baader-planetarium-ufc-telescope-adapter-s70a-to-m57a","provider":"David Astro","version":"1.0","type":"link"}