{"product_id":"player-one-m42f-m48m-adapter-0mm","title":"Player One M42F-M48M Adapter (0mm)","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe Player One M42F-M48M Adapter is a machined aluminium adapter that converts an M42 × 0.75 female interface to an M48 × 0.75 male thread. Player One lists it as a 0 mm adapter — it steps between the two thread standards without adding optical length — with a 6.5 mm physical body. It carries M42 × 0.75 female threads on one end and M48 × 0.75 male threads on the other.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThis is a good match if you need to take an M42 (T-thread) part up to the larger M48 thread standard in an imaging train without adding spacing.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eM42 female to M48 male:\u003c\/strong\u003e converts M42 × 0.75 to M48 × 0.75.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0 mm optical length:\u003c\/strong\u003e steps thread standards without adding optical spacing; 6.5 mm physical body.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminium 6061-T6:\u003c\/strong\u003e machined aluminium body, light and rigid.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical only:\u003c\/strong\u003e no optical elements and no electronic connection.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread conversion:\u003c\/strong\u003e move from an M42 interface up to M48 in a camera or filter train.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimal-spacing joins:\u003c\/strong\u003e where M42-to-M48 is needed without adding backfocus.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eCompatibility \u0026amp; Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eOne end is M42 × 0.75 female; the other is M48 × 0.75 male. It converts between those two standards only. Because it is listed as a 0 mm adapter, it is chosen where the larger thread is needed without spending backfocus. If you are working out your total spacing, send us your setup and we will confirm the fit.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eGood to Know Before You Order\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical adapter only:\u003c\/strong\u003e it changes the thread interface — there are no optics and no electronic communication through it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM42 to M48 only:\u003c\/strong\u003e it does not adapt other thread standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero added optical length:\u003c\/strong\u003e the physical body is 6.5 mm, but Player One rates it as a 0 mm adapter for optical spacing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIs it difficult to set up?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eNo — it threads directly between an M42 female part and an M48 male interface with no tools.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat threads does it have?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eM42 × 0.75 female on one side and M48 × 0.75 male on the other.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it add backfocus?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePlayer One rates it as a 0 mm adapter for optical length; the physical body measures 6.5 mm.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eIn short: a machined aluminium M42-to-M48 adapter that changes thread standard without adding optical length, for stepping an M42 train up to M48.\u003c\/p\u003e","brand":"Player One Astronomy","offers":[{"title":"Default Title","offer_id":53834280861807,"sku":"M42F-M48M-0","price":16.8,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/M42F-M48M-0mm-Adapter-1024x871.png?v=1784239654","url":"https:\/\/ontariotelescope.com\/products\/player-one-m42f-m48m-adapter-0mm","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}