{"product_id":"takahashi-fc-100d-f-50-8-ad-adapter-m64","title":"Takahashi FC-100D F 50.8 AD Adapter M64","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe F 50.8 AD Adapter converts the rear thread of the FC-100DL and FC-100DF onto a male M64 x 0.75 thread, so these telescopes can accept accessories built for Takahashi's older M64 accessory system. Takahashi publishes a 15 mm light path for it — the amount it contributes to your optical train, not its physical length end to end.\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 an FC-100DL or FC-100DF and want to run an M64 reducer or another legacy M64 accessory on it.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear-thread to M64 conversion:\u003c\/strong\u003e bridges the FC-100DL\/DF's native thread to Takahashi's older M64 system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e15 mm published light path:\u003c\/strong\u003e a known, fixed contribution to your back focus total.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid aluminum, black anodized:\u003c\/strong\u003e keeps thread alignment consistent across mounts and removals.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eRunning an M64 reducer or another older M64-thread accessory on an FC-100DL or FC-100DF, for either visual or imaging use.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eBuilt for the FC-100DL and FC-100DF. The 15 mm light path is worth adding to your full back-focus total alongside the M64 accessory you are pairing it with — the \u003ca href=\"\/pages\/takahashi-back-focus-guide\"\u003eTakahashi Back Focus Guide\u003c\/a\u003e tabulates every Takahashi adapter's light path alongside each telescope's back focus target.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eGood to Know Before You Order\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIt is specific to the M64 accessory generation:\u003c\/strong\u003e it exists to bridge to older M64 gear, so it has no role in a train built entirely from Takahashi's current thread standards. Send us your accessory list and we will confirm whether you need it.\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 — it threads onto the rear of the FC-100DL or FC-100DF and presents a male M64 thread on the other side, with nothing to adjust.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is it used for?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eLetting an FC-100DL or FC-100DF accept a reducer or other accessory built for Takahashi's older M64 thread standard.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it work for visual use as well as imaging?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYes — it is a mechanical thread adapter, so it carries through a visual or imaging train equally.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eA 15 mm light-path adapter that puts an M64 male thread on the back of an FC-100DL or FC-100DF, for running older M64-system accessories.\u003c\/p\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":54047910821999,"sku":"TAK-TKP19001","price":107.25,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/tkp19001_458x483_bc4dd5fc-8853-4e7a-86d7-9d58037634fb.jpg?v=1786936426","url":"https:\/\/ontariotelescope.com\/products\/takahashi-fc-100d-f-50-8-ad-adapter-m64","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}