{"product_id":"askar-m42-m48-photo-adapter-for-fma180","title":"Askar M42-M48 Photo Adapter for FMA180","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M48 (2-inch) accessories to the Askar FMA180\u003c\/li\u003e\n\u003cli\u003eConverts the native M42x0.75 T-thread to a larger M48x0.75 thread\u003c\/li\u003e\n\u003cli\u003eEngineered for a precise fit with the FMA180 optical train\u003c\/li\u003e\n\u003cli\u003eEnables the use of full-frame camera adapters and 2-inch filter wheels\u003c\/li\u003e\n\u003cli\u003eMachined from metal for a secure, non-flexing connection\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\u003eM42-M48 Photo Adapter for FMA180\u003c\/h2\u003e\n\u003cp\u003eThis M42-M48 photo adapter is the essential component for connecting larger format imaging accessories to your Askar FMA180 astrograph. It directly converts the FMA180's standard M42x0.75 T-thread output to the wider M48x0.75 thread common on 2-inch filter wheels, filter drawers, and full-frame camera T-rings.\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\u003eM42 to M48 Conversion for the Askar FMA180\u003c\/h3\u003e\n\u003cp\u003eThe Askar FMA180's native M42 rear thread is ideal for many cameras, but it can become a bottleneck for imagers using full-frame sensors or 2-inch filter systems. This adapter solves that problem by providing a secure, correctly spaced M48 connection point, which helps minimize vignetting and allows you to integrate your existing M48 accessories into the FMA180's imaging train without compromise.\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 primary purpose of the M42-M48 adapter for the FMA180?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts main function is to convert the Askar FMA180's standard M42 T-thread to a larger M48 thread. This allows you to attach accessories that use the M48 standard, such as 2-inch filter drawers or T-rings for full-frame DSLR and mirrorless cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this FMA180 adapter work with other telescopes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is specifically designed for the Askar FMA180. It is machined to ensure not only a correct thread fit but also to maintain the precise back focus required by the FMA180's optical design. Using a generic adapter could lead to spacing errors and degraded image quality.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of accessories can I attach to my FMA180 with this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter opens up compatibility with a wide range of M48-threaded accessories. Common examples include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-inch Filter Wheels and Drawers:\u003c\/strong\u003e For convenient multi-filter imaging sessions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-Frame Camera Adapters:\u003c\/strong\u003e M48 T-rings are preferred for larger sensors to reduce vignetting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOff-Axis Guiders (OAGs):\u003c\/strong\u003e Many larger OAGs use M48 threads for a more rigid connection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this M42-M48 adapter change the back focus of the FMA180?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is engineered to be a part of the FMA180's intended imaging train. Its optical length is factored into the system's design. You must still ensure that your camera sensor is placed at the correct back focus distance as measured from the rear flange of this adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this the same as a generic M42 to M48 step-up ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile it serves a similar function, it is not the same. This is a purpose-built adapter designed to integrate mechanically and optically with the Askar FMA180. A generic step-up ring may not provide the correct mechanical stability or spacing for astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the M42-M48 adapter on the Askar FMA180?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is straightforward. You typically unthread the existing M42 adapter or extension from the rear of the FMA180's focuser or optical train. Then, you carefully thread the M42-M48 adapter in its place, ensuring it is snug but not overtightened.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/askar-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eAskar 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":52851339919645,"sku":"ASK-ASKARM4248","price":17.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Askar-M42-M48-photo-adapter-for-FMA180-1_a1088701-2d55-4de5-9520-c65b197de60a.jpg?v=1788401805","url":"https:\/\/davidastro.com\/fr-int\/products\/askar-m42-m48-photo-adapter-for-fma180","provider":"David Astro","version":"1.0","type":"link"}