{"product_id":"takahashi-89mm-prime-focus-ring","title":"Takahashi 89mm Prime Focus Ring","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe Prime Focus Ring (89mm) is a Takahashi accessory ring sized to an 89 mm accessory-ring interface, used to anchor a camera at prime focus in the optical train.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThis is a good match if your Takahashi telescope's camera-side accessory system uses the 89 mm ring interface and you are setting up a prime-focus imaging connection.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e89 mm ring interface:\u003c\/strong\u003e matches Takahashi's larger-format accessory ring family.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrime-focus mounting:\u003c\/strong\u003e holds the camera directly in the optical path rather than through an eyepiece projection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSatin-black finished metal ring:\u003c\/strong\u003e matches Takahashi's other camera-side rings.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eAnchoring a camera at prime focus on a Takahashi telescope that uses the 89 mm accessory ring interface.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eFits Takahashi's 89 mm accessory ring interface. 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 and is a useful starting reference for the rest of your chain.\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 ring that threads into the 89 mm accessory interface, with no adjustment involved.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is it used for?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAnchoring a camera at prime focus on a Takahashi telescope using the 89 mm accessory ring system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if my telescope uses this ring size?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSend us your telescope model and we will confirm whether it uses the 89 mm accessory ring interface this part fits.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eAn 89 mm prime-focus ring for anchoring a camera in Takahashi's larger-format accessory ring system.\u003c\/p\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":54047920750703,"sku":"TAK-TKA86002","price":143.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/takahashi-takahashi-cca-250-extension-ring.jpg?v=1786936653","url":"https:\/\/ontariotelescope.com\/products\/takahashi-89mm-prime-focus-ring","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}