{"product_id":"svbony-sv112-eyepiece-projection-kit","title":"SVBONY SV112 1.25″ Eyepiece Projection and Prime Focus Kit","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/f9183a-1_20250807153306_8860_20260820164228_2141.webp?v=1791670138\" alt=\"SVBONY SV112 eyepiece projection kit\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe SVBONY SV112 is an all-aluminium 1.25″ camera adapter that works two ways: as a prime-focus adapter that connects a camera straight to the telescope, and as an eyepiece-projection tube that holds an eyepiece between telescope and camera for higher magnification. The camera side is M42×0.75, the 1.25″ barrel carries an M28.5×0.6 filter thread, and the tube accepts eyepieces up to 42 mm in outside diameter with up to 42 mm of variable projection range. It weighs 350 g (12.35 oz).\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThis is a good match if you want to photograph the Moon and planets at higher image scale through an eyepiece, and also want the option of prime-focus imaging of larger deep-sky targets, with a DSLR on an M42 T-ring or an astronomy camera.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/f9183a-2_20250807153306_8891.jpg?v=1791670138\" alt=\"SVBONY SV112 eyepiece projection adapter\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo imaging modes:\u003c\/strong\u003e prime focus without an eyepiece, or eyepiece projection with one.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable length:\u003c\/strong\u003e sliding the tube changes the projection distance, and with it magnification and framing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaser-engraved scale:\u003c\/strong\u003e for repeatable settings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachined grip ring:\u003c\/strong\u003e secure handling, including in damp conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure ring:\u003c\/strong\u003e holds the eyepiece barrel without scratching it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter-threaded 1.25″ barrel:\u003c\/strong\u003e M28.5×0.6 for standard 1.25″ filters.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/f9183a-4_20250807153307_1236.jpg?v=1791670138\" alt=\"SVBONY SV112 prime focus adapter\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/f9183a-5_20250807153307_1236.jpg?v=1791670138\" alt=\"SVBONY SV112 eyepiece projection kit parts\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eOptical Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eIn eyepiece projection, the eyepiece re-images the telescope's focal plane onto the camera sensor. Moving the camera farther from the eyepiece increases the effective focal length, so the SV112's adjustable tube and engraved scale let you choose the image scale for small targets like Jupiter, Saturn or lunar craters. In prime focus, the camera sits at the telescope's own focal plane for the native field of view, which suits nebulae and galaxies.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLunar and planetary imaging\u003c\/strong\u003e by eyepiece projection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrime-focus imaging\u003c\/strong\u003e of larger deep-sky objects.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTelescope side:\u003c\/strong\u003e standard 1.25″ eyepiece port.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera side:\u003c\/strong\u003e M42×0.75. SVBONY describes connection to Canon EOS and Rebel DSLRs, which needs the matching T-ring; astronomy cameras connect to the M42 thread.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEyepieces:\u003c\/strong\u003e up to 42 mm outside diameter.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/6385525138341160401755857.webp?v=1791669834\" alt=\"SVBONY SV112 connection diagram with astronomy camera and eyepiece\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/f9183a-3_20250807153307_1228.jpg?v=1791670138\" alt=\"SVBONY SV112 eyepiece projection kit scale\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eGood to Know Before You Order\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eT-ring, eyepiece and camera sold separately.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocus travel:\u003c\/strong\u003e eyepiece projection moves the focal point outward, so the telescope's focuser needs enough outward travel to reach focus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage contents:\u003c\/strong\u003e SVBONY does not itemise the kit's parts.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIs it difficult to set up?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePrime focus is direct: insert the barrel in the focuser and attach the camera. For projection, fit an eyepiece inside, set the length on the scale, and refocus; changing the length changes magnification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich eyepieces fit?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1.25″ eyepieces up to 42 mm in outside diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use filters?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYes. The 1.25″ barrel has an M28.5×0.6 filter thread.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eIn short: a 350 g aluminium 1.25″ adapter for prime-focus and variable eyepiece-projection imaging, with an M42 camera thread and room for eyepieces up to 42 mm wide.\u003c\/p\u003e","brand":"SvBony","offers":[{"title":"Default Title","offer_id":67722230890607,"sku":"F9183A","price":45.59,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/f9183a-1_20250807153306_8860_20260820164228_2141.webp?v=1791670138","url":"https:\/\/ontariotelescope.com\/products\/svbony-sv112-eyepiece-projection-kit","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}