{"product_id":"pegasus-astro-adapter-m68-male-to-m63-female-for-ricardi-m63-reducer-wo-reducers-with-m63-thread","title":"Pegasus Astro Adapter M68 Male to M63 Female (For Riccardi M63 Reducer \u0026 WO Reducers with M63 thread)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M68 threaded focusers to M63 threaded reducers\u003c\/li\u003e\n\u003cli\u003eMale Thread: M68 with 1.0mm pitch and 4mm length\u003c\/li\u003e\n\u003cli\u003eFemale Thread: M63 with 1.0mm pitch\u003c\/li\u003e\n\u003cli\u003eEngineered for Riccardi and William Optics M63 Reducers\u003c\/li\u003e\n\u003cli\u003eMaintains precise optical alignment\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 M68 Male to M63 Female (For Riccardi M63 Reducer \u0026amp; WO Reducers with M63 thread)\u003c\/h2\u003e\n\u003cp\u003eThis precision-machined Adapter M68 Male to M63 Female provides the critical connection between your M68 threaded focuser and popular M63 threaded field flatteners or reducers. The male M68 thread has a 1.0mm pitch and a 4mm length, while the internal female thread is M63 with a matching 1.0mm pitch, ensuring a secure, non-flexing fit for your imaging train.\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\u003eM68 Male to M63 Female: Secure Your Imaging Train\u003c\/h3\u003e\n\u003cp\u003eThis adapter solves a common connection problem for imagers using high-end focusers and specific reducers. It allows you to directly thread components like the Riccardi M63 Reducer or William Optics reducers with an M63 thread onto any focuser or accessory that terminates in a standard M68 male thread. This creates a rigid, threaded connection that is superior to compression fittings for preventing tilt and maintaining optical alignment.\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\u003ePrecision Machining with a 1.0mm Pitch\u003c\/h3\u003e\n\u003cp\u003eBoth the external M68 and internal M63 threads are cut with a fine 1.0mm pitch. This ensures a tight, secure engagement between your components with minimal risk of loosening during an imaging session. The male M68 thread has a physical length of 4mm, providing sufficient engagement without bottoming out in most focusers.\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 main purpose of this Adapter M68 Male to M63 Female?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary function is to allow you to connect an accessory with a female M63x1.0 thread, such as a Riccardi or William Optics reducer, to a focuser or extension tube that has a female M68x1.0 thread. It bridges this specific size gap securely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I confirm this adapter fits my specific William Optics reducer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou must verify that your William Optics reducer has a female M63x1.0 thread for attaching to the telescope. Check the reducer's documentation or measure the thread diameter. This adapter is specifically designed for that M63 thread size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this M68 to M63 adapter add significant length to my imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this is a low-profile adapter. While the exact optical length is not specified, its design is intended to add minimal back focus, typically only a few millimeters, to the optical path.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the thread pitch on this M68 to M63 adapter standard?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the 1.0mm pitch is a common standard for M68 and M63 threads in astronomical equipment, ensuring compatibility with a wide range of focusers and accessories from various manufacturers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this Adapter M68 Male to M63 Female with my Sky-Watcher Esprit refractor's focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eMany Sky-Watcher Esprit models feature an M68 female thread on the drawtube. If your model has this thread, this adapter will allow you to connect an M63 reducer directly to it, creating a fully threaded imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is a threaded connection with this M68 adapter better than a 2\" nosepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA threaded connection prevents any potential for tilt or sag that can occur with slip-fit or compression ring adapters, especially with heavier cameras or filter wheels. This ensures your reducer and camera are perfectly orthogonal to the optical axis, which is critical for sharp stars across the entire field.\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\u003eMale Thread\u003c\/td\u003e\n\u003ctd\u003eM68 x 1.0mm Pitch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMale Thread Length\u003c\/td\u003e\n\u003ctd\u003e4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFemale Thread\u003c\/td\u003e\n\u003ctd\u003eM63 x 1.0mm Pitch\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\"\u003eAdapter M68 Male to M63 Female\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\/pegasus-astro-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePegasus Astro 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pegasus Astro","offers":[{"title":"Default Title","offer_id":52686356250909,"sku":"PEG-ADAPT-M68M-M63F","price":28.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/pegasus-astro-adapter-m68-male-to-m63-female-for-ricardi-m63-reducer-w-1.png?v=1793649427","url":"https:\/\/davidastro.com\/fr-int\/products\/pegasus-astro-adapter-m68-male-to-m63-female-for-ricardi-m63-reducer-wo-reducers-with-m63-thread","provider":"David Astro","version":"1.0","type":"link"}