{"product_id":"takahashi-fc100-camera-ring-m72-m55-9-coupling","title":"Takahashi FC100 Camera Ring M72-M55.9 Coupling","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe FC100 Camera Ring M72 - M55.9 Coupling is the piece that lets an M72-threaded accessory — a reducer, flattener, or camera ring — mate with an M55.9-threaded drawtube or accessory further down the train. Takahashi uses both standards across the FC-100 series, and this ring is what joins them.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThis is a good match if your imaging or visual train mixes M72 and M55.9-threaded Takahashi accessories and you need the coupling that bridges the two.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eM72 x 1.0 thread on one side:\u003c\/strong\u003e Takahashi's wider accessory standard, used on reducers, flatteners and camera rings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM55.9 x 0.75 thread on the other:\u003c\/strong\u003e Takahashi's drawtube-accessory standard on several refractors, including the FC-100 series.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTakahashi part TKA19205\u003c\/strong\u003e — Takahashi's own \"M72\/M55.9 coupling\" designation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eUse it to join an M72-threaded accessory — a reducer, flattener, or camera ring — to an M55.9-threaded drawtube or accessory further down the FC-100 train.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eIt bridges Takahashi's M72 x 1.0 and M55.9 x 0.75 accessory standards, both used on the FC-100 series. The \u003ca href=\"\/pages\/takahashi-back-focus-guide\"\u003eTakahashi Back Focus Guide\u003c\/a\u003e is still worth checking for the back focus target on your FC-100 once the rest of your train is planned.\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 between the two accessory standards it was built to join, with nothing to align.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is it best used for?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eJoining M72 and M55.9-threaded accessories in an FC-100 imaging or visual train.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this coupling specific to the FC-100, or does it fit other Takahashi scopes?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eTakahashi documents both threads it bridges on the FC-100 series specifically; other Takahashi refractors sharing either standard can use it the same way. Send us your telescope model and we'll confirm the fit.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eA coupling that bridges Takahashi's M72 and M55.9 accessory standards, purpose-built for mixed-thread FC-100 trains.\u003c\/p\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":54047927959663,"sku":"TAK-TKA19205","price":90.09,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/TKA19205_1.jpg?v=1786936721","url":"https:\/\/ontariotelescope.com\/products\/takahashi-fc100-camera-ring-m72-m55-9-coupling","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}