{"product_id":"askar-80phq-0-76x-full-frame-reducer","title":"Askar 80PHQ 0.76x Full Frame Reducer","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe Askar 80PHQ 0.76x Full Frame Reducer is a dedicated 3-inch reducer designed specifically for the Askar 80PHQ f\/7.5 astrograph. Its triplet optical design reduces the native 80PHQ system by 0.76x, changing the telescope to approximately f\/5.7 with a reduced focal length of 456mm.\u003c\/p\u003e\n\u003cp\u003eThis accessory is built for deep-sky astrophotographers who want a wider field of view and shorter exposure times while keeping the 80PHQ as the core imaging platform.\u003c\/p\u003e\n\n\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\n\u003cp\u003eThis reducer is best for Askar 80PHQ owners who use their telescope primarily for astrophotography. It is especially useful for beginner-to-advanced deep-sky imagers who want to capture larger nebulae, wide star fields, and extended objects with a faster optical system than the native f\/7.5 configuration.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eDedicated reducer for the Askar 80PHQ astrograph.\u003c\/li\u003e\n  \u003cli\u003e0.76x reduction changes the 80PHQ from f\/7.5 to approximately f\/5.7.\u003c\/li\u003e\n  \u003cli\u003eReduces focal length to approximately 456mm for a wider imaging field.\u003c\/li\u003e\n  \u003cli\u003eHelps shorten exposure time for deep-sky astrophotography.\u003c\/li\u003e\n  \u003cli\u003eUses a 3-inch triplet reducer design for full-frame imaging support.\u003c\/li\u003e\n  \u003cli\u003eStandard 55mm back focus simplifies camera spacing for common astronomy imaging setups.\u003c\/li\u003e\n  \u003cli\u003eBuilt-in M48x0.75 2-inch filter thread supports convenient filter installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eWide-field deep-sky astrophotography with the Askar 80PHQ\u003c\/li\u003e\n  \u003cli\u003eLarge nebula and star-field imaging\u003c\/li\u003e\n  \u003cli\u003eFull-frame camera imaging with the 80PHQ\u003c\/li\u003e\n  \u003cli\u003eShorter exposure imaging compared with the native f\/7.5 configuration\u003c\/li\u003e\n  \u003cli\u003ePortable and semi-permanent imaging rigs using the 80PHQ\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\n\u003cp\u003eThis reducer is designed specifically for the Askar 80PHQ. When used with the 80PHQ f\/7.5 astrograph, it provides a reduced focal ratio of approximately f\/5.7 and a reduced focal length of approximately 456mm. The vendor specifies a standard 55mm back focus, and the reducer includes a built-in M48x0.75 2-inch filter thread.\u003c\/p\u003e\n\u003cp\u003eThe reducer connects through the 80PHQ photographic adapter system at the focuser end. Camera adapters, spacers, filters, filter drawers, and cameras are sold separately unless specifically included in a bundle.\u003c\/p\u003e\n\n\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eThis is not a standalone imaging lens or telescope.\u003c\/li\u003e\n  \u003cli\u003eIt is designed for the Askar 80PHQ and should not be assumed compatible with other telescopes.\u003c\/li\u003e\n  \u003cli\u003eIt is for astrophotography, not visual observing.\u003c\/li\u003e\n  \u003cli\u003eAccurate 55mm camera-side back focus is required for best field correction.\u003c\/li\u003e\n  \u003cli\u003eIt will not turn the 80PHQ into a high-magnification planetary telescope; it widens the field and speeds up deep-sky imaging.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eIs this reducer good for beginners?\u003c\/h3\u003e\n\u003cp\u003eYes, if the user already owns an Askar 80PHQ and understands basic camera spacing. The standard 55mm back focus is familiar for many astronomy camera setups, but spacing still needs to be measured carefully.\u003c\/p\u003e\n\u003ch3\u003eWhat is it best used for?\u003c\/h3\u003e\n\u003cp\u003eIt is best used for wide-field deep-sky astrophotography with the Askar 80PHQ, especially when a faster focal ratio and wider field are preferred.\u003c\/p\u003e\n\u003ch3\u003eIs it for visual observing or astrophotography?\u003c\/h3\u003e\n\u003cp\u003eThis is an astrophotography accessory. It is not recommended as a visual observing accessory.\u003c\/p\u003e\n\u003ch3\u003eWhat telescope is it compatible with?\u003c\/h3\u003e\n\u003cp\u003eIt is specifically designed for the Askar 80PHQ astrograph.\u003c\/p\u003e\n\u003ch3\u003eWhat camera spacing does it require?\u003c\/h3\u003e\n\u003cp\u003eThe vendor specifies a standard 55mm back focus.\u003c\/p\u003e\n\u003ch3\u003eDoes it accept filters?\u003c\/h3\u003e\n\u003cp\u003eYes. It includes a built-in M48x0.75 2-inch filter thread.\u003c\/p\u003e\n\u003ch3\u003eWhen should it not be recommended?\u003c\/h3\u003e\n\u003cp\u003eDo not recommend it to customers who do not own an 80PHQ, need a visual accessory, or want to increase focal length for small targets.\u003c\/p\u003e\n\n\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\n\u003cp\u003eOntario Telescope recommends the Askar 80PHQ 0.76x Full Frame Reducer for 80PHQ owners who want to make their imaging system faster and wider without changing telescopes. It solves the problem of capturing larger deep-sky targets more efficiently. Choose the native 80PHQ configuration instead when more focal length and smaller image scale are preferred.\u003c\/p\u003e\n\n\u003ch2\u003eOptical Diagram Reports\u003c\/h2\u003e\n\u003cp\u003eThe following vendor-supplied graphic provides reducer information and specifications for the Askar 80PHQ imaging setup.\u003c\/p\u003e\n\u003cimg src=\"https:\/\/omo-oss-image.thefastimg.com\/portal-saas\/new2022072923460240318\/cms\/image\/f04d2907-9c73-45de-8f41-c2ca81c0ee90.jpg\" alt=\"Askar 80PHQ 0.76x full frame reducer specifications and imaging configuration diagram\"\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":53156237574255,"sku":"80PHQ Reducer","price":368.2,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/80PHWREducera.webp?v=1779732870","url":"https:\/\/ontariotelescope.com\/products\/askar-80phq-0-76x-full-frame-reducer","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}