{"product_id":"takahashi-cca-250-visual-adapter-17mm","title":"Takahashi CCA-250 Visual Adapter 17mm","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe CCA-250 Visual Adapter is a Takahashi coupling with a published light path of 17 mm — the amount it contributes to your optical train, not its physical length end to end. Takahashi lists it as compatible with the CCA-250, FSQ-85EDX, FSQ-106ED, FC-100DL, and FC-100DF.\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 one of its listed telescopes and need a compact visual coupling to complete an eyepiece or accessory connection.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e17 mm published light path:\u003c\/strong\u003e a small, precise addition to a visual or imaging train.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-scope compatibility:\u003c\/strong\u003e a single part number covers the CCA-250, FSQ-85EDX, FSQ-106ED, FC-100DL, and FC-100DF.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid metal coupling:\u003c\/strong\u003e pairs with Takahashi's Coupling S and Coupling L rings for extended reach.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eCompleting a visual eyepiece connection or an intermediate coupling step in an imaging train on any of its compatible telescopes.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eCompatible with the CCA-250, FSQ-85EDX, FSQ-106ED, FC-100DL, and FC-100DF. The 17 mm figure is worth adding into your full back-focus total alongside any flattener, reducer, or filter wheel already in the chain — 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\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 is a single coupling with no adjustment, though confirming the thread match on both sides is worth doing before you order the rest of your train.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is it used for?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAdding a defined 17 mm connection point in a visual or imaging chain on the CCA-250, FSQ-85EDX, FSQ-106ED, FC-100DL, or FC-100DF.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it be combined with Takahashi's Coupling S and Coupling L?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYes — Takahashi pairs this adapter with the Coupling S and Coupling L rings when more reach is needed.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eA 17 mm visual coupling for the CCA-250 and its compatible FSQ and FC-100 telescopes.\u003c\/p\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":54047909773423,"sku":"TAK-TKP86005","price":107.25,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/takahashi-m54-m43-adapter-tkp86005-astronomy-plus-1.jpg?v=1786936398","url":"https:\/\/ontariotelescope.com\/products\/takahashi-cca-250-visual-adapter-17mm","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}