{"product_id":"pegasus-astro-adapter-m65-male-to-m54-male","title":"Pegasus Astro Adapter M65 Male to M54 Male","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M65 female threads to M54 female threads\u003c\/li\u003e\n\u003cli\u003eEngineered for the Sky-Watcher Esprit 100 imaging train\u003c\/li\u003e\n\u003cli\u003eConsumes only 2.0mm of critical backfocus\u003c\/li\u003e\n\u003cli\u003eM65 thread with 1.0mm pitch\u003c\/li\u003e\n\u003cli\u003eM54 thread with 0.75mm pitch\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\u003ePegasus Astro Adapter M65 Male to M54 Male\u003c\/h2\u003e\n\u003cp\u003eThis Pegasus Astro M65 Male to M54 Male Adapter is a precision-machined solution designed specifically to solve backfocus challenges in demanding imaging trains, consuming only 2.0mm of optical path. It enables a direct connection between M65 (1.0mm pitch) and M54 (0.75mm pitch) components, making it an essential part for pairing a Pegasus Falcon Rotator with a Sky-Watcher Esprit 100 and its dedicated field flattener.\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\u003eA 2.0mm Solution for Esprit 100 \u0026amp; Falcon Rotator Backfocus\u003c\/h3\u003e\n\u003cp\u003eFor imagers using a Sky-Watcher Esprit 100, integrating a rotator between the focuser and the field flattener can often consume too much backfocus. This adapter solves that problem by connecting the field flattener directly after the Falcon Rotator, creating a rigid, threaded connection while only adding 2.0mm to the optical train. This ultra-thin profile is critical for achieving the correct sensor distance required for a perfectly flat field.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eM65 Male Thread:\u003c\/strong\u003e Features a 1.0mm pitch, designed to thread into components like the Falcon Rotator.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM54 Male Thread:\u003c\/strong\u003e Features a standard 0.75mm pitch for connecting to the Esprit 100 field flattener or other M54 accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Profile Design:\u003c\/strong\u003e The minimal 2.0mm thickness preserves precious backfocus, allowing other essential accessories like off-axis guiders and filter wheels to fit within the optical path.\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 use case for the M65 to M54 Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed for owners of the \u003cstrong\u003eSky-Watcher Esprit 100\u003c\/strong\u003e telescope who are integrating a \u003cstrong\u003ePegasus Falcon Rotator\u003c\/strong\u003e. It allows you to connect the telescope's field flattener after the rotator, which is often necessary to achieve the correct backfocus distance for a sharp, flat field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much backfocus does this M65 to M54 adapter consume?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter is engineered to be extremely low-profile, consuming only \u003cstrong\u003e2.0mm\u003c\/strong\u003e of backfocus in your imaging train. This minimal optical path length is crucial for preserving enough space for filter wheels, off-axis guiders, and your camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work with telescopes other than the Esprit 100?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile it was made for the Esprit 100 and Falcon Rotator combination, it can be used in any imaging train where you need to connect a female M65 x 1.0mm threaded component to a female M54 x 0.75mm threaded component. Always verify your thread types and backfocus requirements before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the exact thread specifications for this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter features two male threads:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide 1:\u003c\/strong\u003e M65 male thread with a 1.0mm pitch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide 2:\u003c\/strong\u003e M54 male thread with a 0.75mm pitch.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is a specific adapter needed for the Esprit 100 and Falcon Rotator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Sky-Watcher Esprit 100 has a specific backfocus distance requirement from its field flattener. The Falcon Rotator has its own mechanical length. This adapter provides the correct thread conversion (M65 to M54) with a minimal 2.0mm profile, making it possible to fit both components into the imaging train and still meet the telescope's backfocus requirement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter strong enough to support a heavy camera setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a solid, single-piece metal adapter. When threaded correctly, it creates a rigid and secure connection capable of supporting typical astrophotography setups without 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\u003eOptical Path\u003c\/td\u003e\n\u003ctd\u003e2.0mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread 1 (Male)\u003c\/td\u003e\n\u003ctd\u003eM65 with 1.0mm pitch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread 2 (Male)\u003c\/td\u003e\n\u003ctd\u003eM54 with 0.75mm pitch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Application\u003c\/td\u003e\n\u003ctd\u003eConnects SW Esprit 100 Field Flattener after Falcon Rotator\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 M65 Male to M54 Male\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\u003ca href=\"https:\/\/davidastro.com\/pages\/pegasus-astro-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePegasus Astro 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pegasus Astro","offers":[{"title":"Default Title","offer_id":52686356152605,"sku":"PEG-ADAPT-M65M-M54M","price":28.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/pegasus-astro-adapter-m65-male-to-m54-male-1.png?v=1793649427","url":"https:\/\/davidastro.com\/fr-int\/products\/pegasus-astro-adapter-m65-male-to-m54-male","provider":"David Astro","version":"1.0","type":"link"}