{"product_id":"takahashi-ca-35mm-adapter-fs-60c","title":"Takahashi CA 35mm Adapter FS-60C","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe CA 35mm Adapter FS-60C is Takahashi's CA35 C2X camera adapter for the FS-60 series — an M43 x 0.75 to M42 x 0.75 (T-thread) ring with an adjustable metal back distance of 17–21 mm. Takahashi publishes its weight at 50 g.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThis is a good match if you're mounting a T-ring-equipped DSLR or mirrorless camera to an FS-60C-family refractor and want the metal back distance adjustable within a small range rather than fixed.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eM43 x 0.75 male, telescope side:\u003c\/strong\u003e threads onto the FS-60C accessory chain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM42 x 0.75 T-thread, camera side:\u003c\/strong\u003e accepts a standard T-ring for your camera mount.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable 17–21 mm metal back distance:\u003c\/strong\u003e a small range you can dial in rather than a single fixed figure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7 mm M43 counter ring included\u003c\/strong\u003e for centering adjustment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 g:\u003c\/strong\u003e Takahashi's published weight.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eUse it for prime-focus DSLR or mirrorless imaging on an FS-60C-family refractor, where the adjustable 17–21 mm back distance lets you fine-tune spacing against a flattener's target rather than relying on a fixed-length ring.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/TKA00205_schema.png?v=1786936378\" alt=\"Dimensional schema of the Takahashi CA35 C2X camera adapter TKA00205 showing M43 input, T-thread output and adjustable back distance\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003eIts metal back distance runs 17–21 mm, published by Takahashi — this is what the adapter contributes to your optical train across its adjustment range, not a single caliper measurement of the part. It takes a standard M42 x 0.75 T-ring on the camera side, so you'll need the ring matched to your camera mount separately. The \u003ca href=\"\/pages\/takahashi-back-focus-guide\"\u003eTakahashi Back Focus Guide\u003c\/a\u003e tabulates comparable Takahashi adapter figures alongside each telescope's back focus target, useful for checking your total spacing.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eGood to Know Before You Order\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIt needs a separately sold T-ring for your camera mount.\u003c\/strong\u003e The adapter itself ends in a standard M42 x 0.75 T-thread rather than a body-specific mount.\u003c\/p\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 — the back distance adjusts within its 17–21 mm range using the included counter ring, and then it's a standard T-thread connection to your camera.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is it best used for?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePrime-focus imaging on an FS-60C-family refractor with a T-ring-mounted DSLR or mirrorless camera.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat makes it different from a fixed camera adapter?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe 17–21 mm metal back distance is adjustable, so it can be tuned to a flattener's exact backfocus target instead of landing wherever a fixed-length ring happens to put it.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eA 50 g M43-to-T-thread camera adapter for the FS-60C series, with an adjustable 17–21 mm metal back distance and a standard T-ring connection.\u003c\/p\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":54047926124655,"sku":"TAK-TKA00205","price":78.65,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/tka00205_3.jpg?v=1786936691","url":"https:\/\/ontariotelescope.com\/products\/takahashi-ca-35mm-adapter-fs-60c","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}