{"product_id":"pro-grade-astro-imaging-m42-spacer-kit-with-7-5mm","title":"Pro Grade Astro Imaging M42 Spacer Kit With 7.5mm 12mm And 30mm Rings For Back Focus Fine Tuning Between Camera And Telescope Easy T Ring And T Adapter Threads Black","description":"\u003cdiv\u003eBack-Focus Spacer Kit for Astro Cameras: 7.5\/12\/30mm M42\u003cbr\u003e\n✔️ Includes 7.5mm, 12mm, 30mm spacers for precise back-focus \u003cp\u003eA handy spacer kit for astro imaging designed to dial in the exact distance between your camera and telescope for sharp images. Fine-tuning back-focus helps keep stars pinpoint across the frame and improves edge-to-edge performance. It is compatible with T-thread camera adapters and is commonly used with EdgeHD, Schmidt-Cassegrain, and RASA 8 optical tubes. The spacers are machined aluminum, black anodized, with blackened interiors for contrast and knurled surfaces for easy threading.\u003c\/p\u003e ✅ 3 spacers included: 7.5mm, 12mm, 30mm\u003cbr\u003e\n✅ Machined aluminum, black anodized with glare-threaded interiors\u003cbr\u003e\n✅ M42 x 0.75 (T-thread) compatible with camera adapters and T-Rings\u003cbr\u003e\n✅ Knurled outer surface for grip when threading\/unthreading\u003cbr\u003e \u003cp\u003e💡 What is a back-focus spacer kit used for in astro imaging? This handy accessory helps you set the correct distance between your camera and telescope for peak image quality.\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBack-focus tuning improves corner performance on full-frame sensors\u003c\/li\u003e\n\u003cli\u003eWorks with M42 x 0.75 T-thread adapters and T-Rings\u003c\/li\u003e\n\u003cli\u003eThree spacer lengths give you repeatable back-focus distances\u003c\/li\u003e\n\u003cli\u003eDesigned for quick, secure threading with knurled spacers\u003c\/li\u003e\n\u003c\/ul\u003e✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48938976182507,"sku":"VXB08MTQXZMZ","price":91.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/51QfZXcVFAL.jpg?v=1782396082","url":"https:\/\/vxb.com\/products\/pro-grade-astro-imaging-m42-spacer-kit-with-7-5mm","provider":"VXB Bearings","version":"1.0","type":"link"}