{"product_id":"takahashi-fc-76dc-objective-unit-fs-60cb-fs-60q-upgrade","title":"Takahashi FC-76DC Objective Unit (FS-60CB \/ FS-60Q Upgrade)","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThis is the FC-76DC objective unit — the lens cell and its housing, not a complete optical tube. It was designed to expand what an FS-60CB or FS-60Q can do: the focuser unit from either of those telescopes attaches directly to this objective, so an owner moves up to a 76 mm objective using parts they already have, at a fraction of the cost of a complete FC-76DC tube assembly.\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 FS-60CB or FS-60Q and want more aperture without buying a second complete telescope.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFC-76DC objective:\u003c\/strong\u003e the same objective unit used in the FC-76DC optical tube.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUses your existing focuser:\u003c\/strong\u003e the FS-60CB and FS-60Q focuser unit attaches to it directly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAn upgrade path, not a second telescope:\u003c\/strong\u003e substantially less than a complete FC-76DC tube.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eOptical \/ Mechanical Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eTakahashi's small refractors are built in modules — objective unit at one end, focuser unit at the other — and this product exists because those modules interchange. Going from the FS-60's 60 mm objective to a 76 mm one is a meaningful step: aperture area increases by roughly 60%, which shows up directly as brightness and resolving ability. The focuser, diagonal, eyepieces and camera adapters carry over unchanged, so the cost of the upgrade is the objective alone.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eUpgrading an existing FS-60CB or FS-60Q for visual observing and imaging at a larger aperture, while keeping the rest of the setup intact.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eDesigned for the \u003cstrong\u003eFS-60CB and FS-60Q\u003c\/strong\u003e focuser units. Takahashi does not publish the resulting focal length, focal ratio or assembled dimensions for this combination on the listing, and we would rather not print figures we cannot source from them. \u003cstrong\u003eSend us your telescope and what you intend to put behind it and we will get you the assembled specifications before you order.\u003c\/strong\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eGood to Know Before You Order\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eThis is a component, not a telescope:\u003c\/strong\u003e it is the objective unit only. It works by attaching to the focuser unit from an FS-60CB or FS-60Q, so it is only useful if you own one of those.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAssembled specifications are not published here:\u003c\/strong\u003e the resulting focal length and ratio are the figures you would want before ordering, and we will obtain them for you.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNot the same as a complete FC-76DC:\u003c\/strong\u003e the optics are the FC-76DC's; the tube and focuser come from your existing telescope.\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\u003eThe focuser unit from your FS-60CB or FS-60Q attaches to it directly — Takahashi designed these parts to come apart and go back together. If you would like to be walked through it, ask us.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat do I need to already own?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAn FS-60CB or FS-60Q, whose focuser unit this objective attaches to.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a complete telescope?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eNo — it is the objective unit. The focuser comes from your existing telescope.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy this instead of a full FC-76DC?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCost. You are buying the objective rather than a second complete tube assembly, and reusing the focuser you already own.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe FC-76DC objective unit — the route from a 60 mm FS-60CB or FS-60Q to a 76 mm objective, reusing the focuser you already have.\u003c\/p\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":54086148456559,"sku":"TAK-TFK07650","price":1509.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/tka0176_2_2.jpg?v=1787329367","url":"https:\/\/ontariotelescope.com\/products\/takahashi-fc-76dc-objective-unit-fs-60cb-fs-60q-upgrade","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}