{"product_id":"qhyccd-minicam8-oag","title":"QHYCCD miniCAM8 Off-Axis Guider (miniCAM8-OAG)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned specifically for the QHYCCD miniCAM8 camera\u003c\/li\u003e\n\u003cli\u003eLarge 14 x 10mm prism for improved guide star brightness\u003c\/li\u003e\n\u003cli\u003eStandard M48 telescope interface for wide compatibility\u003c\/li\u003e\n\u003cli\u003eMaintains 55mm back focal distance with the miniCAM8\u003c\/li\u003e\n\u003cli\u003eAccepts guide cameras with a 1.25-inch nosepiece\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eQHYCCD miniCAM8 Off-Axis Guider (miniCAM8-OAG)\u003c\/h2\u003e\n\u003cp\u003eThe QHYCCD miniCAM8-OAG integrates a large 14x10mm prism to maximize light collection for your guide camera, for higher guiding precision. It connects to your telescope's corrector or flattener via a standard M48 thread and is engineered to maintain the common 55mm back focal distance when paired with a miniCAM8 camera. A standard 1.25-inch interface accepts most common guide cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA Large 14x10mm Prism for Brighter Guide Stars\u003c\/h3\u003e\n\u003cp\u003eThe core of the miniCAM8-OAG is its oversized 14x10mm prism. The oversized prism maximizes the light reaching your guide camera, which helps the guiding software lock onto stars and guide more precisely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM48 Threads and 55mm Back Focus for System Compatibility\u003c\/h3\u003e\n\u003cp\u003eEngineered for seamless integration, the miniCAM8-OAG has a standard M48 telescope interface, for flatteners, reducers and correctors with M48 output. When attached to a QHYCCD miniCAM8 camera, the entire assembly maintains a 55mm back focal distance, the spacing many flatteners and reducers are designed for.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Advantage of Off-Axis Guiding with the miniCAM8\u003c\/h3\u003e\n\u003cp\u003eAn off-axis guider eliminates the primary source of tracking errors in long-exposure astrophotography: differential flexure. Unlike a separate guidescope, the miniCAM8-OAG uses the same light path as your main imaging camera, so a mechanical shift affects both cameras the same way and the guide camera sees the movement your imaging camera sees.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat do I need to use the QHYCCD miniCAM8-OAG?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe miniCAM8-OAG is designed as a complete system with the \u003cstrong\u003eQHYCCD miniCAM8 camera\u003c\/strong\u003e. In addition, you will need a separate guide camera that has a standard \u003cstrong\u003e1.25-inch\u003c\/strong\u003e nosepiece to insert into the guider's port.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the 14x10mm prism on the miniCAM8-OAG a key feature?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe large \u003cstrong\u003e14x10mm\u003c\/strong\u003e prism gathers significantly more light than smaller prisms found in many other OAGs. This helps you find usable guide stars in star-poor regions of the sky. The miniCAM8's filters sit in its built-in wheel behind the OAG, so the guide camera receives unfiltered light.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the miniCAM8-OAG help when imaging a faint target like the Pelican Nebula (IC 5070) with a long focal length SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWith a long focal length telescope like an SCT, even tiny mechanical shifts (differential flexure) between a separate guidescope and the main telescope can cause elongated stars. The miniCAM8-OAG avoids this by using the main telescope's optics for guiding, so the guide camera and imaging camera see the same movement during the long exposures faint targets like IC 5070 need.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a corrector that requires exactly 55mm of back focus. Will the QHYCCD miniCAM8-OAG work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The miniCAM8-OAG is specifically designed so that when it is attached to a QHYCCD miniCAM8 camera, the assembly keeps a \u003cstrong\u003e55mm\u003c\/strong\u003e back focal distance, so it matches correctors designed for 55mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesigned For\u003c\/td\u003e\n\u003ctd\u003eQHYCCD miniCAM8 cameras\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrism Size\u003c\/td\u003e\n\u003ctd\u003e14 x 10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Interface\u003c\/td\u003e\n\u003ctd\u003eM48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBack Focal Distance\u003c\/td\u003e\n\u003ctd\u003e55mm (camera plus OAG)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGuide Camera Interface\u003c\/td\u003e\n\u003ctd\u003e1.25 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eminiCAM8-OAG\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/qhyccd-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eQHYCCD 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":68074731962653,"sku":"QHY-110200","price":129.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/qhyccd-minicam8-oag-1.jpg?v=1794617835","url":"https:\/\/davidastro.com\/en-int\/products\/qhyccd-minicam8-oag","provider":"David Astro","version":"1.0","type":"link"}