{"product_id":"william-optics-m42-adapter-for-elite-drawer-oag-kit","title":"William Optics M42 Adapter for Elite Drawer OAG Kit","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdds an M42 x 0.75 (T2) Camera-Side Connection to the Elite Drawer OAG\u003c\/li\u003e\n\u003cli\u003eConnects Cameras and Accessories with M42 x 0.75 (T2) Threads\u003c\/li\u003e\n\u003cli\u003eDovetail Connection on the OAG Side, 0 mm Optical Length\u003c\/li\u003e\n\u003cli\u003eComplements the Kit's Included M48 and M54 Interfaces\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\u003eWilliam Optics M42 Adapter for Elite Drawer OAG Kit\u003c\/h2\u003e\n\u003cp\u003eThe William Optics M42 Adapter for Elite Drawer OAG Kit adds an M42 x 0.75 (T2) connection to the camera side of your guider assembly. This adapter makes the Elite Drawer OAG compatible with the wide range of astronomy cameras and T-rings that rely on the M42 x 0.75 standard, an interface not included with the base kit.\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\u003eAdding an M42 x 0.75 (T2) Output to Your OAG\u003c\/h3\u003e\n\u003cp\u003eWhile the Elite Drawer OAG Kit ships with M48 and M54 camera-side adapters, many dedicated astronomy cameras and T-rings use the smaller M42 x 0.75 (T2) thread. This adapter closes that gap, letting you connect an M42-threaded camera or accessory to the OAG and filter drawer assembly with a William Optics part made for it.\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\u003eDovetail Connection on the OAG Side\u003c\/h3\u003e\n\u003cp\u003eThe adapter is made to fit the William Optics Elite Drawer OAG. On its light-in side it mounts to the OAG with a dovetail connection; on its light-out side it presents an M42 x 0.75 (T2) connection for your camera or T-ring. A solid, purpose-made connection helps keep your main camera and guide camera aligned during long exposures.\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\u003e0 mm Optical Length: No Change to Your Back Focus\u003c\/h3\u003e\n\u003cp\u003eThe adapter's optical length is 0 mm, so it adds nothing to your imaging train's back focus. Plan your spacing as you would with the Elite Drawer OAG alone: its 37.5 mm optical length plus your camera's own back focus and any spacers, matched to the distance required by your reducer or flattener for a flat field and sharp stars.\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 is the purpose of the William Optics M42 Adapter for the Elite Drawer OAG?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter provides an \u003cstrong\u003eM42 x 0.75 (T2) threaded output\u003c\/strong\u003e on the camera side of the William Optics Elite Drawer OAG. It's designed for imagers whose primary camera or accessory (like a T-ring for a DSLR) uses this common thread size, which is not included in the standard OAG kit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy astronomy camera has M42 threads. Is this the adapter I need for the Elite Drawer OAG Kit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. If your camera or T-ring connects with M42 x 0.75 (T2) threads, this William Optics adapter gives the Elite Drawer OAG a matching M42 x 0.75 connection on its camera side. Check the thread type of your camera or adapter before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this M42 adapter attach to the William Optics Elite Drawer OAG?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt attaches to the OAG with a \u003cstrong\u003edovetail connection\u003c\/strong\u003e on its light-in side. The adapter is made by William Optics to fit the Elite Drawer OAG, so no third-party converter is needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the M42 adapter change the back focus for my reducer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The adapter has an optical length of \u003cstrong\u003e0 mm\u003c\/strong\u003e, so it does not change your back focus. Keep the spacing you would use with the Elite Drawer OAG alone to meet the distance required by your flattener or reducer.\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003eM42 Adapter for Elite Drawer OAG Kit (AD-OAG-C-M42)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eWilliam Optics Elite Drawer OAG Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOAG Side (Light-In)\u003c\/td\u003e\n\u003ctd\u003eDovetail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Side (Light-Out)\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75 (T2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eWilliam Optics 2-year warranty\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\"\u003eM42 Adapter for Elite Drawer OAG Kit\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\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":67954798297373,"sku":"WO-AD-OAG-C-M42","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/William-Optics-M42-Adapter-Elite-Drawer-OAG-1.jpg?v=1793732584","url":"https:\/\/davidastro.com\/en-us\/products\/william-optics-m42-adapter-for-elite-drawer-oag-kit","provider":"David Astro","version":"1.0","type":"link"}