{"product_id":"player-one-m42f-m42m-20mm-extender","title":"Player One M42F-M42M 20mm Extender (M42F-M42M-20)","description":"\u003ch1\u003ePlayer One M42F-M42M 20mm Extender\u003c\/h1\u003e\n\u003cp\u003eThe Player One M42F-M42M 20mm Extender is a precision-machined spacer designed to add 20mm of optical backfocus to astrophotography imaging trains using standard M42 × 0.75 threads. Constructed from durable Aluminum 6061-T6, it provides a rigid and secure connection between cameras, filter wheels, flatteners, and other threaded accessories while maintaining accurate spacing for optimal imaging performance. Its black anodized finish helps minimize internal reflections inside the optical path.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eThreaded extender \/ spacer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Type\u003c\/td\u003e\n\u003ctd\u003eM42 × 0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection Configuration\u003c\/td\u003e\n\u003ctd\u003eM42 female → M42 male\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExtension Length\u003c\/td\u003e\n\u003ctd\u003e20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAluminum 6061-T6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eM42-threaded astronomy accessories\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eBackfocus spacing and imaging train extension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eCNC-machined metal design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eBlack anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Use\u003c\/td\u003e\n\u003ctd\u003eCameras, filter wheels, reducers, flatteners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003ePlayer One Astronomy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cp\u003ePlayer One M42F-M42M 20mm Extender\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/astronomyplus.com\/pages\/player-one-warranty\" target=\"_blank\" rel=\"noopener\"\u003ePlayer One 2-Years Warranty\u003c\/a\u003e\u003c\/p\u003e","brand":"Player One","offers":[{"title":"Default Title","offer_id":49249207976165,"sku":"POA-M42F-M42M-20","price":34.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/M48F-M42M-20mm-Extender-logo.png?v=1779566512","url":"https:\/\/astronomyplus.com\/products\/player-one-m42f-m42m-20mm-extender","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}