{"product_id":"starizona-variable-m48-t-threaded-adapter-kit","title":"Starizona Variable M48 Adapter Kit","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eComplete kit of 3 variable M48 threaded adapters\u003c\/li\u003e\n\u003cli\u003eCovers spacing from 15mm to 40mm\u003c\/li\u003e\n\u003cli\u003eFirst adapter adjusts from 15mm to 20mm\u003c\/li\u003e\n\u003cli\u003eSecond adapter adjusts from 20mm to 30mm\u003c\/li\u003e\n\u003cli\u003eThird adapter adjusts from 30mm to 40mm\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\u003eStarizona Variable M48 T-Threaded Adapter Kit\u003c\/h2\u003e\n\u003cp\u003eThe Starizona Variable M48 T-Threaded Adapter Kit provides a complete solution for achieving precise back focus, bundling three separate variable adapters into a single package. This kit covers a total spacing range from 15mm to 40mm using M48 threads. The three included adapters provide distinct adjustment ranges of 15-20mm, 20-30mm, and 30-40mm, allowing you to dial in the exact distance required by your imaging train components.\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 3-Adapter Kit for M48 Spacing from 15mm to 40mm\u003c\/h3\u003e\n\u003cp\u003eAchieving the correct distance between a focal reducer or field flattener and your camera sensor is critical for sharp, coma-free stars across the image frame. This kit from Starizona simplifies that process by providing three adapters that cover nearly any common back focus requirement from 15mm to 40mm. Instead of stacking multiple fixed-length spacers, you can use a single variable adapter to fine-tune the distance with high precision, eliminating sources of tilt and flex. This set includes adapters covering 15-20mm, 20-30mm, and 30-40mm, ensuring you have the right tool for different imaging setups.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat adapters are included in the Starizona Variable M48 Adapter Kit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe kit includes a set of three variable M48 adapters. Each one covers a different range:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e15mm to 20mm adapter\u003c\/li\u003e\n\u003cli\u003e20mm to 30mm adapter\u003c\/li\u003e\n\u003cli\u003e30mm to 40mm adapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the total adjustment range covered by the Starizona M48 Adapter Kit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe kit provides continuous adjustment across three ranges, covering a total spacing distance from \u003cstrong\u003e15mm to 40mm\u003c\/strong\u003e. The ranges do not overlap, with the first adapter covering 15-20mm, the second 20-30mm, and the third 30-40mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Starizona M48 Adapter Kit help when using a focal reducer that requires precise spacing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eMost focal reducers and flatteners have a strict back focus tolerance, often within a millimeter. This Starizona M48 kit allows you to precisely set that distance without relying on a fixed stack of extension tubes. For example, if your reducer requires 25mm of spacing, you would use the 20-30mm adapter to dial in that exact distance for optimal optical correction.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003eM48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContents\u003c\/td\u003e\n\u003ctd\u003eAll 3 variable adapters (15-20mm, 20-30mm, 30-40mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\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\"\u003eVariable M48 Adapter (15-20mm)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eVariable M48 Adapter (20-30mm)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eVariable M48 Adapter (30-40mm)\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starizona-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eStarizona Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Starizona","offers":[{"title":"Default Title","offer_id":68045002637597,"sku":"STZ-VAR-M48-KIT","price":119.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Starizona-Variable-M48-Adapters-1_e61c33ed-b969-48d1-a8b5-c67ed1f19c54.jpg?v=1794410540","url":"https:\/\/davidastro.com\/en-us\/products\/starizona-variable-m48-t-threaded-adapter-kit","provider":"David Astro","version":"1.0","type":"link"}