{"product_id":"pegasus-m68-male-to-m42-female","title":"Pegasus M68 Male to M42 Female Adapter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConverts M68x1 Male Threads to M42x0.75 Female T-Threads\u003c\/li\u003e\n\u003cli\u003eStandard 0.75mm Pitch for Universal T-Ring Compatibility\u003c\/li\u003e\n\u003cli\u003eMaintains a Secure, Non-Flexing Connection\u003c\/li\u003e\n\u003cli\u003ePrecision-Machined for Optical Train 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\u003eDownloads\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 M42 Female\u003c\/h2\u003e\n\u003cp\u003eThis Adapter M68 Male to M42 Female provides a simple, secure solution for integrating standard T-thread accessories into larger optical systems. It directly converts a male M68 thread to a female M42 T-thread, featuring the universal 0.75mm pitch required for compatibility with DSLR T-rings, filter wheels, and off-axis guiders.\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 to M42 Conversion with a Standard 0.75mm Pitch\u003c\/h3\u003e\n\u003cp\u003eThe primary function of this adapter is to bridge the gap between large-format focusers, correctors, or flatteners that terminate in M68 male threads and the vast ecosystem of M42 accessories. The female side features a standard M42x0.75mm thread, ensuring you can securely attach your existing imaging equipment without introducing flexure or misalignment into the optical path. This single-piece component is essential for creating a robust, all-threaded connection from your telescope to your camera.\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 use for the Adapter M68 Male to M42 Female?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter allows you to connect accessories with a male M42 T-thread (like a DSLR T-ring, a guide camera, or a filter wheel) to a telescope focuser, field flattener, or other component that has a female M68 thread. It steps down the larger format to the more common T-thread standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I connect my Canon DSLR to a focuser with M68 threads using this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will need two components: this M68 to M42 adapter and an M42 T-ring for your specific Canon EOS model. First, thread the adapter onto the M68 male thread of your focuser. Then, thread the Canon T-ring onto the female M42 threads of the adapter. Finally, attach your camera body to the T-ring's bayonet mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the M42 thread on this adapter a standard T-thread?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The M42 female thread has a pitch of 0.75mm, which is the universal standard for astronomical T-threads. This ensures compatibility with the vast majority of T-rings and imaging accessories on the market.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter add significant length to my imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAdapters like this are designed to be as thin as possible while maintaining structural integrity. While it will add a small amount of optical path length, it is typically minimal and must be accounted for when calculating back focus. Always measure your specific setup to ensure you can reach focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the Adapter M68 Male to M42 Female be used visually?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile primarily designed for imaging, it could be used in a visual setup if you have a specific need to connect an M42-threaded accessory, such as a T-threaded eyepiece holder, to an M68 output. However, for standard visual observing, a dedicated M68 to 2\" eyepiece adapter is typically used.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter strong enough for a heavy camera and filter wheel?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. A fully threaded connection, which this adapter provides, is significantly more secure and rigid than using set-screws or compression rings. It is designed to support the weight of typical DSLR or dedicated astronomy camera setups without sagging or flexure.\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\u003eM42 Thread Pitch\u003c\/td\u003e\n\u003ctd\u003e0.75mm\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 M42 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\u003cp\u003eNo downloads are available for this product.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThis product is covered by a 2-year manufacturer's warranty against defects in materials and workmanship.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pegasus Astro","offers":[{"title":"Default Title","offer_id":49171431817501,"sku":"PEG-ADAPT-M68M-M42F","price":27.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PEG-ADAPT-M68M-M42F.jpg?v=1726595662","url":"https:\/\/davidastro.com\/fr-us\/products\/pegasus-m68-male-to-m42-female","provider":"David Astro","version":"1.0","type":"link"}