{"product_id":"qhyccd-combo-e1","title":"QHYCCD Adapter Kit - Combo E1","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects select QHY cameras to M48 threaded accessories\u003c\/li\u003e\n\u003cli\u003eAchieves the industry-standard 55mm back focus distance\u003c\/li\u003e\n\u003cli\u003eCompatible with QHY533C, QHY294C, QHY163C, and QHY183C cameras\u003c\/li\u003e\n\u003cli\u003eIncludes three custom adapters and one 0.5mm spacer for fine adjustment\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\u003eAdapter Kit - Combo E1\u003c\/h2\u003e\n\u003cp\u003eThe Adapter Kit - Combo E1 provides the essential components to connect your QHY294C, QHY163C, QHY183C, or QHY533C camera to any M48 threaded corrector or accessory requiring a standard 55mm back focus distance.\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\u003eStandardize Your Imaging Train at 55mm Back Focus\u003c\/h3\u003e\n\u003cp\u003eMost popular coma correctors and field flatteners are designed with a rigid 55mm back focus requirement for optimal performance. This E1 adapter kit includes three custom-machined adapters and a 0.5mm spacer, giving you the exact combination needed to perfectly match this critical distance with compatible QHY cameras. The system provides a direct, secure connection to M48 (2-inch filter) threads, eliminating tilt and ensuring a solid imaging train.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Spacing:\u003c\/strong\u003e The combination of three distinct adapters and a 0.5mm fine-tuning spacer ensures you can achieve the target 55mm distance accurately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMono Camera Use:\u003c\/strong\u003e While designed for color cameras, this kit is also suitable for their mono counterparts (e.g., QHY163M, QHY294M) when a filter wheel or off-axis guider is not part of the imaging train.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDSLR Lens Ready:\u003c\/strong\u003e The kit can serve as the foundation for attaching your QHY camera to Canon EF or Nikon F-mount lenses, though this requires an additional third-party lens-to-M48 adapter (sold separately).\u003c\/li\u003e\n\u003c\/ul\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 is the primary function of the Adapter Kit - Combo E1?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary function of the \u003cstrong\u003eAdapter Kit - Combo E1\u003c\/strong\u003e is to set the correct \u003cstrong\u003e55mm back focus distance\u003c\/strong\u003e between a compatible QHY camera (like the QHY533C or QHY294C) and an M48 threaded accessory, such as a coma corrector or field flattener. This precise spacing is critical for achieving sharp, aberration-free stars across the entire field of view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich QHY cameras does the Combo E1 Adapter Kit support?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Combo E1 Adapter Kit is specifically designed for the following QHY color cameras: \u003cstrong\u003eQHY533C, QHY294C, QHY163C, and QHY183C\u003c\/strong\u003e. It can also be used with the monochrome versions of these cameras if you are not using a filter wheel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the Adapter Kit - Combo E1 to connect my QHY533C to a coma corrector with M48 threads?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will select the appropriate combination of the three included adapters to bridge the gap between the QHY533C's sensor and the 55mm requirement of your M48 coma corrector. The specific combination depends on your camera's native back focus. The included 0.5mm spacer can be added or removed for fine-tuning to achieve perfect correction.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI want to use my QHY163M with an f\/4 Newtonian's coma corrector, but without a filter wheel. Is the Combo E1 kit right for this?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the \u003cstrong\u003eAdapter Kit - Combo E1\u003c\/strong\u003e is perfectly suited for this scenario. Since you are not using a filter wheel, which would consume a significant amount of back focus, this kit will provide the correct spacing to connect your QHY163M directly to the coma corrector and achieve the required 55mm distance for optimal performance in your f\/4 Newtonian.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Adapter Kit - Combo E1 include the adapter for a Canon or Nikon DSLR lens?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. While the Combo E1 kit can be part of a solution for attaching DSLR lenses, it \u003cstrong\u003edoes not include the main lens mount adapter\u003c\/strong\u003e. You will need to purchase a separate M48 to Canon EF or M48 to Nikon F adapter to complete the connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the 0.5mm spacer in the Combo E1 kit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e0.5mm spacer\u003c\/strong\u003e is included for fine-tuning the back focus distance. While the main adapters get you very close to the target 55mm, slight variations in manufacturing tolerances of other components can affect the final spacing. The 0.5mm spacer allows you to make precise micro-adjustments to achieve the sharpest possible stars.\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\u003eCompatible Cameras\u003c\/td\u003e\n\u003ctd\u003eQHY294C \/ QHY163C \/ QHY183C \/ QHY533C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget Connection\u003c\/td\u003e\n\u003ctd\u003e55mm Back Focus via M48 Threads\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\"\u003eCustomized Adapters\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 3\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e0.5mm Spacer\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 Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":52942991393053,"sku":"QHY-020119","price":49.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/QHYCCD-Adapter-Kit-Combo-E1-1_7967ac8d-c5a0-443c-9234-2a66fc2cc216.jpg?v=1789615050","url":"https:\/\/davidastro.com\/products\/qhyccd-combo-e1","provider":"David Astro","version":"1.0","type":"link"}