{"product_id":"svbony-sv149-canon-ef-ef-s-lens-to-1-25-camera-eyepiece-adapter","title":"SVBONY SV149 Canon EF\/EF-S Lens to 1.25″ Camera \u0026 Eyepiece Adapter","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/w9112a-0_20251231152505_5314.webp?v=1791665298\" alt=\"SVBONY SV149 Canon EF\/EF-S lens to 1.25 inch adapter\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe SVBONY SV149 is a mechanical adapter that mounts a Canon EF or EF-S camera lens in front of a 1.25″ eyepiece or 1.25″-nosepiece astronomy camera. One side takes the Canon bayonet; the other is a 1.25″ holder with a brass compression ring. The body is CNC-machined aluminium alloy with an M60 x 0.75 adapter thread, measures 70 x 41 x 70 mm and weighs 122 g.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/w9112a-2_20250807155110_5648.jpg?v=1791665299\" alt=\"SVBONY SV149 adapter product overview\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThis is a good match if you own Canon EF or EF-S lenses and want to use one as a short-focal-length optic for an astronomy camera — for wide-field Milky Way and constellation imaging — or to view through a lens with a 1.25″ eyepiece.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCanon EF \/ EF-S bayonet:\u003c\/strong\u003e accepts Canon full-frame and APS-C lenses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.25″ holder with brass compression ring:\u003c\/strong\u003e grips an eyepiece or camera nosepiece evenly without marking the barrel and keeps it from slipping out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM60 x 0.75 adapter thread\u003c\/strong\u003e on the lens-side body.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC-machined aluminium alloy:\u003c\/strong\u003e all-metal, black finish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact:\u003c\/strong\u003e 70 x 41 x 70 mm, 122 g.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/w9112a-3_20250807155110_5640.jpg?v=1791665299\" alt=\"SVBONY SV149 adapter key features and design\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide-field astrophotography:\u003c\/strong\u003e a Canon lens in front of a 1.25″-nosepiece astronomy camera for large nebula fields, Milky Way regions and constellations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlanetary-camera field work:\u003c\/strong\u003e pairing a small-sensor camera with a telephoto lens for lunar or wide views.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisual use with a lens:\u003c\/strong\u003e a 1.25″ eyepiece behind a Canon lens for casual stargazing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/w9112a-4_20250807155110_5646.jpg?v=1791665299\" alt=\"SVBONY SV149 adapter recommended uses\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLenses:\u003c\/strong\u003e Canon EF and EF-S.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEyepieces and cameras:\u003c\/strong\u003e anything with a standard 1.25″ barrel or nosepiece.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWith SVBONY cameras:\u003c\/strong\u003e SVBONY pairs the SV149 with its SV405CC and SV605CC cooled cameras. Both are available as separate listings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocus:\u003c\/strong\u003e the lens's own focus ring sets focus. Whether infinity focus is reached depends on how far the camera or eyepiece slides into the holder — send us your lens and camera and we will check the fit with you.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/w9112a-5_20250807155110_5648.jpg?v=1791665300\" alt=\"SVBONY SV149 adapter compatibility with lenses and 1.25 inch cameras\" 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\/w9112a-6_20250807155110_3138.jpg?v=1791665299\" alt=\"SVBONY SV149 adapter compatibility and accessory notes\" 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\n\u003cstrong\u003eMechanical adapter only:\u003c\/strong\u003e there is no electronic contact, so autofocus and electronic aperture control are not available. Lenses with a manual focus ring are easiest to use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCanon mount only:\u003c\/strong\u003e other lens mounts need their own adapter.\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\u003eNo. Mount the lens on the Canon bayonet, slide the camera nosepiece or eyepiece into the 1.25″ holder and tighten the brass ring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill it work with EF-S lenses?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYes. SVBONY lists Canon EF and EF-S compatibility.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I control aperture?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eNot electronically. The adapter has no electrical contacts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich cameras does it suit?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAny astronomy camera with a 1.25″ nosepiece; SVBONY shows it with the SV405CC and SV605CC.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I look through it with an eyepiece?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYes. A 1.25″ eyepiece fits the holder for visual use behind the lens.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eIn short: an all-metal Canon EF\/EF-S to 1.25″ adapter with a brass compression ring, turning a Canon lens into a wide-field optic for a 1.25″ astronomy camera or eyepiece.\u003c\/p\u003e","brand":"SvBony","offers":[{"title":"Default Title","offer_id":67721431056495,"sku":"W9112A","price":26.21,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/w9112a-0_20251231152505_5314.webp?v=1791665298","url":"https:\/\/ontariotelescope.com\/products\/svbony-sv149-canon-ef-ef-s-lens-to-1-25-camera-eyepiece-adapter","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}