{"product_id":"back-focus-spacer-rings-kit-for-m48-threads-0-5mm","title":"Back Focus Spacer Rings Kit For M48 Threads 0.5mm 0.8mm 1.0mm Three Pack, Precision Aluminum Telescope Spacers For Astrophotography, Field Flatteners, Sharper Stars, Eliminates Edge Coma","description":"\u003cdiv\u003eBack Focus Spacer Kit for M48 Threads - Precise Spacing\u003cbr\u003e\n✔️ 0.5mm, 0.8mm, 1.0mm aluminum spacers for precise back focus \u003cp\u003eThis precision spacer set includes three thicknesses (0.5mm, 0.8mm, and 1.0mm) to fine-tune back focus on M48 threaded systems. It’s ideal for astrophotography workflows using field flatteners, reducers, and filter wheels to sharpen stars and reduce edge coma.\u003c\/p\u003e \u003cp\u003e✅ Three thicknesses: 0.5mm, 0.8mm, 1.0mm for flexible spacing \u003cbr\u003e✅ Smooth M48 x 0.75 threads prevent cross-threading and ensure secure connection \u003cbr\u003e✅ Ultra-slim profile down to 0.5mm for minimal stacking height \u003cbr\u003e✅ Matte black anodized finish absorbs stray light and reduces reflections \u003cbr\u003e\u003c\/p\u003e \u003cp\u003e💡 What is a back focus spacer kit for M48 threads, and why does it matter for astrophotography? Handy accessory to dial in exact spacing between sensor and field flattener for pinpoint stars.\u003cbr\u003e- back focus adjustment options 0.5mm, 0.8mm, 1.0mm\u003cbr\u003e- compatible with most M48 focusers, flatteners, reducers, filter wheels\u003cbr\u003e- lightweight aluminum with matte black finish to reduce stray light\u003cbr\u003e- improves edge coma control for sharper deep-sky images\u003c\/p\u003e✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48938979885291,"sku":"VXB0GS5V64RZ","price":65.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/61Nb2BPugHL.jpg?v=1782396135","url":"https:\/\/vxb.com\/products\/back-focus-spacer-rings-kit-for-m48-threads-0-5mm","provider":"VXB Bearings","version":"1.0","type":"link"}