{"product_id":"baader-planetarium-3-5-inch-quick-changer-and-instrument-rotator-for-planewave","title":"Baader Planetarium Baader 3.5\" Quick Changer and Instrument Rotator for PlaneWave","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eEnables secure, rotation-proof mounting of heavy accessories\u003c\/li\u003e\n\u003cli\u003eDesigned for the 3.5\" Hedrick Focuser on PlaneWave CDK 14\" to 24\" telescopes\u003c\/li\u003e\n\u003cli\u003eAllows for precise instrument rotation and quick changes of imaging trains\u003c\/li\u003e\n\u003cli\u003eAdapts to M68 and 2\" accessory systems\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\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\u003eBaader 3.5\" Quick Changer and Instrument Rotator for PlaneWave\u003c\/h2\u003e\n      \u003cp\u003eThe Baader 3.5\" Quick Changer and Instrument Rotator provides a robust, zero-flexure solution for managing heavy imaging payloads on PlaneWave CDK 14\" to 24\" telescopes. This system is engineered specifically for the 3.5\" Hedrick focuser, enabling you to precisely rotate and rapidly swap entire instrument packages, from large-format cameras to spectrographs, without compromising alignment. It also provides secure adaptation to the popular M68 and 2\" accessory standards.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003e3.5\" Quick-Change System: Zero-Flex Rotation for Heavy Instruments\u003c\/h3\u003e\n      \u003cp\u003eWhen working with large cameras and heavy spectrographs, maintaining a rigid, repeatable connection is critical. The Baader 3.5\" Quick Changer creates a solid, rotation-proof mechanical lock that eliminates instrument sag and ensures your optical train remains perfectly aligned, even as you rotate it to frame your target. This is not a simple friction-fit rotator; it's a dedicated changing system designed to handle the significant weight of professional-grade equipment without introducing tilt or flexure.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n    \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eSeamless Integration with PlaneWave CDK 14\"-24\" Telescopes\u003c\/h3\u003e\n      \u003cp\u003eThis rotator is purpose-built to integrate directly with the 3.5\" Hedrick focuser found on PlaneWave CDK 14\", 17\", 20\", and 24\" models. The design ensures a perfect fit and maintains the correct optical spacing for the PlaneWave system. On the output side, it offers versatile connections to the Baader M68 thread system and standard 2\" accessories, allowing you to build out your imaging train with a wide range of correctors, off-axis guiders, and filter wheels.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the primary purpose of the Baader 3.5\" Quick Changer for PlaneWave?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIts primary purpose is to allow for the \u003cstrong\u003esecure mounting, precise rotation, and rapid exchange\u003c\/strong\u003e of heavy instrument packages on large PlaneWave CDK telescopes. It addresses the mechanical challenges of handling large-format cameras, spectrographs, and other heavy visual or imaging accessories without introducing flexure or losing collimation.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhich specific telescopes is the Baader Instrument Rotator compatible with?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis rotator is designed specifically for \u003cstrong\u003ePlaneWave CDK 14\", 17\", 20\", and 24\" telescopes\u003c\/strong\u003e that are equipped with the \u003cstrong\u003e3.5\" Hedrick Focuser\u003c\/strong\u003e. It is not a universal rotator and is engineered for the mechanical and optical requirements of this specific telescope series.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Baader 3.5\" Rotator help when imaging with a PlaneWave CDK17 and a large format camera?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eWith a PlaneWave CDK17 and a heavy camera, achieving perfect framing is essential. The rotator allows you to precisely orient your camera to compose your shot of objects like the Andromeda Galaxy (M31) or the Veil Nebula (NGC 6960) without having to physically rotate the entire telescope tube or risk loosening threaded connections. The quick-change capability also means you can remove the entire imaging train as a single block for storage or maintenance and re-attach it with perfect alignment.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI want to switch between a spectrograph and a visual setup on my CDK20. Is the Quick Changer suitable?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, this is an ideal application. The Baader Quick Changer allows you to pre-configure two separate instrument packages—one with your spectrograph and another with a 2\" diagonal and eyepieces. You can then swap between these entire setups quickly and securely in the field, knowing that the mechanical connection will be rigid and repeatable each time.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does \"adapts to M68 and 2-inch systems\" mean?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis means the output side of the rotator is designed to connect to accessories that use the \u003cstrong\u003eBaader M68x1 thread system\u003c\/strong\u003e, a common standard for large-format correctors and accessories. It also allows for connection to standard \u003cstrong\u003e2-inch accessories\u003c\/strong\u003e, like diagonals or camera nosepieces, via appropriate adapters, ensuring broad compatibility with your existing equipment.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Baader 3.5\" Quick Changer difficult to install?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eInstallation is straightforward for users familiar with the PlaneWave Hedrick focuser. It threads directly onto the focuser's 3.5\" collar. The primary consideration is ensuring your entire imaging train remains within the back-focus requirements of your specific optical configuration, which is a standard part of setting up any imaging system on a CDK.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.29\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScrew Type\u003c\/td\u003e\n\u003ctd\u003eLarge clamping screw wirh brass pressure plate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium, Planewave\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping System\u003c\/td\u003e\n\u003ctd\u003eScrew clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e85 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e138 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eQuick Changer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsage\u003c\/td\u003e\n\u003ctd\u003efor heavy-duty accessories\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":52913176740125,"sku":"BAA-1324000","price":479.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/BaaderPlanetarium-3-5-Quick-Changer-and-Instrumentenrotator-for-Planewave-1_e29971a1-22b3-4931-8da6-2383ff86a679.jpg?v=1789087265","url":"https:\/\/davidastro.com\/en-us\/products\/baader-planetarium-3-5-inch-quick-changer-and-instrument-rotator-for-planewave","provider":"David Astro","version":"1.0","type":"link"}