{"product_id":"svbony-sv535-105mm-f2-8-apo-astrograph-lens","title":"SVBONY SV535 105mm f\/2.8 APO Astrograph Lens","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/W9329A-Description-1_20251219100319_5163.webp?v=1791671058\" alt=\"SVBONY SV535 105mm f\/2.8 APO astrograph lens key visual\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe SVBONY SV535 is a 105 mm f\/2.8 apochromatic astrograph lens: a compact, seven-element optic in five groups with FMC coatings, a helical focuser and a dovetail mounting plate, built for wide-field astrophotography with full-frame support. At f\/2.8 it collects light quickly, so large nebulae, dust lanes and Milky Way star fields build up in short sub-exposures.\u003c\/p\u003e\n\u003cp\u003eThe rear connection is an M42x0.75 male thread, the front accepts 2″ filters, and SVBONY supplies both Vixen-style and Arca-Swiss plates. SVBONY describes the lens as weighing approximately 482 g.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/W9329A-Description-2_20251219100327_3755.webp?v=1791671058\" alt=\"SVBONY SV535 105mm f\/2.8 APO lens overview panel\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/W9329A-Description-10_20251219100332_4948.webp?v=1791671058\" alt=\"SVBONY SV535 APO astrograph lens feature panel\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis is a good match if you:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eImage wide fields:\u003c\/strong\u003e 105 mm frames whole constellations' worth of nebulosity, such as the Cygnus region, the Veil and the North America Nebula.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTravel or image from dark sites:\u003c\/strong\u003e a lens of about 482 g rides on star trackers and small mounts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShoot nightscapes and Milky Way panoramas:\u003c\/strong\u003e the fast f\/2.8 aperture keeps exposures short.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse a full-frame or APS-C camera:\u003c\/strong\u003e SVBONY specifies full-frame support.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e105 mm f\/2.8 APO optics:\u003c\/strong\u003e 7 elements in 5 groups with FMC coatings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelical focuser:\u003c\/strong\u003e smooth, precise focus without image shift.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual dovetail plates:\u003c\/strong\u003e Vixen-style and Arca-Swiss plates included.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM42x0.75 male rear thread:\u003c\/strong\u003e with a 24 mm back focal length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2″ filter thread:\u003c\/strong\u003e for light-pollution and narrowband filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoft case:\u003c\/strong\u003e included for transport.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/W9329A-Description-11_20251219100338_2873.webp?v=1791671058\" alt=\"SVBONY SV535 APO astrograph lens design panel\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/15-1600x837_20251219162320_3689_20260714113746_2882.webp?v=1791671058\" alt=\"SVBONY SV535 APO astrograph lens panel\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/W9329A-Description-13_20251219100347_8401.webp?v=1791671058\" alt=\"SVBONY SV535 APO astrograph lens detail panel\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eOptical Design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe SV535 uses seven elements in five groups, an apochromatic design that brings red, green and blue light to a common focus so bright stars stay free of colour halos at f\/2.8. Unlike a standard camera lens, it is focused manually with a helical focuser and mounted by a dovetail, so it behaves like a small astrograph in the imaging train: a fixed, repeatable focus point, filters ahead of the optics, and a firm mount under the lens rather than the camera body.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/W9329A-Description-14_20251219100352_7716.webp?v=1791671058\" alt=\"SVBONY SV535 APO astrograph lens optics panel\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/W9329A-Description-16_20251219100402_6797.webp?v=1791671058\" alt=\"SVBONY SV535 APO astrograph lens focuser panel\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/W9329A-Description-17_20251219100407_6678.webp?v=1791671058\" alt=\"SVBONY SV535 APO astrograph lens mounting panel\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide-field deep-sky imaging:\u003c\/strong\u003e large faint nebulae, dust structures and galaxy groups, as SVBONY describes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMilky Way and nightscape photography:\u003c\/strong\u003e on a star tracker with a mirrorless or DSLR camera.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNarrowband imaging:\u003c\/strong\u003e with 2″ filters on the front thread or a filter drawer in the train.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMosaics:\u003c\/strong\u003e wide individual panels cover large regions quickly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/W9329A-Description-18_20251219100412_4314.webp?v=1791671058\" alt=\"SVBONY SV535 APO astrograph lens connection panel\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/W9329A-Description-19_20251219100416_2024.webp?v=1791671059\" alt=\"SVBONY SV535 APO astrograph lens portability panel\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/W9329A-Description-20_20251219100420_7279.webp?v=1791671058\" alt=\"SVBONY SV535 APO astrograph lens wide-field applications panel\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBack focal length:\u003c\/strong\u003e 24 mm from the M42 thread. SVBONY notes this is too short for common T-mount camera adapters, which is why it offers dedicated short T\u0026amp;E-mount (Sony E), T\u0026amp;E\u0026amp;Z (Nikon Z) and T\u0026amp;E\u0026amp;RF (Canon RF) options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThis listing:\u003c\/strong\u003e the T\u0026amp;E-mount configuration. The Z, RF and SV535-to-SV226 M42 configurations are also offered by SVBONY; contact us for those.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAstronomy cameras:\u003c\/strong\u003e M42 connection; SVBONY offers an SV226 M42 filter-drawer configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Vixen-style and Arca-Swiss plates fit most star trackers and mount saddles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSVBONY publishes connection diagrams for Sony, Nikon and Canon mirrorless bodies; if your camera is different, send us the model and we will work out the connection with you.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/Connection-Diagram-1_20251220111247_6433.webp?v=1791671058\" alt=\"SVBONY SV535 with Sony 6000 connection diagram\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/Connection-Diagram-2_20251220111247_8791.webp?v=1791671058\" alt=\"SVBONY SV535 with Nikon Z30 connection diagram\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/Connection-Diagram-3_20251220111248_1398.webp?v=1791671058\" alt=\"SVBONY SV535 with Canon EOS RF connection diagram\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat's in the Box\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSV535 105 mm f\/2.8 APO lens\u003c\/li\u003e\n\u003cli\u003eVixen-style dovetail plate\u003c\/li\u003e\n\u003cli\u003eArca-Swiss plate\u003c\/li\u003e\n\u003cli\u003eM48 and M42 metal lens caps\u003c\/li\u003e\n\u003cli\u003eSoft case\u003c\/li\u003e\n\u003cli\u003eWrench and screws\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eGood to Know Before You Order\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort back focus:\u003c\/strong\u003e the 24 mm back focal length needs SVBONY's matched short adapters rather than a standard T-ring; the configuration option sets this for your camera.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight figures:\u003c\/strong\u003e SVBONY's feature text gives about 482 g, while its specification table lists an estimated 1500 g.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImaging only:\u003c\/strong\u003e the SV535 is an astrograph lens for cameras; it is not set up for eyepiece viewing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs it difficult to set up?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. Attach the matching mount adapter to your camera, thread it to the lens, mount the lens by its plate and focus with the helical focuser on a bright star.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it cover a full-frame sensor?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSVBONY specifies full-frame support.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use filters?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The front accepts 2″ filters, and an M42 filter-drawer configuration is available.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy can't I use an ordinary T-ring?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 24 mm back focal length is shorter than a standard T-ring and camera flange combined, so SVBONY's short mount adapters are used instead.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eIn short: a 105 mm f\/2.8 seven-element APO lens with helical focus, dual dovetail plates and a 2″ filter thread, built for fast wide-field imaging on a tracker or small mount. Pair it with the matched short adapter for your camera and it is ready to image.\u003c\/p\u003e","brand":"SvBony","offers":[{"title":"T\u0026E-mount","offer_id":67722441883759,"sku":"W9317A","price":341.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/SV535_20260303164905_6305.webp?v=1791671155","url":"https:\/\/ontariotelescope.com\/products\/svbony-sv535-105mm-f2-8-apo-astrograph-lens","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}