{"product_id":"m48-2-inch-extension-tube-kit-5-7-15-20-30mm-rings-m48-0-75","title":"M48 2-Inch Extension Tube Kit - 5\/7\/15\/20\/30mm Rings - M48×0.75","description":"\u003ch3\u003eM48 2-Inch Extension Tube Kit - 5\/7\/15\/20\/30mm Rings - M48×0.75\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eKey Product Features Dial In Precise Backfocus: Five rings (5\/7\/15\/20\/30\nmm) stack in any combination to solve spacing for astrophotography and\neyepiece projection—achieve fine adjustment from 5 mm up to 77 mm total.\nTrue 2\" Interface (M48×0.75): Double-threaded male \u0026amp; female M48 on every\nring for easy stacking and broad compatibility with 2\" accessories that use\nthe 48 mm filter thread (flatteners, reducers, filter holders, OAGs). Note:\nM48 (2\" filter thread), not M42\/T-2. All-Metal, Anodized Build: Durable\naluminum construction with a hard, matte anodized finish resists wear and\nreflections; precisely cut threads engage smoothly to help prevent binding or\ncross-threading. Maintain Optical Alignment: Tight tolerances help keep\nthe optical train square and repeatable when adding or removing rings—ideal\nfor critical spacing on reducers\/flatteners and camera adapters. QC’d \u0026amp;\nReady for the Field: Each set is test-assembled and visually inspected for\nfit and finish before packing, so you can focus on capturing sharp, high-\ncontrast images. ---  What’s in the Box Five M48 Extension Rings: 5 mm, 7\nmm, 15 mm, 20 mm, 30 mm Thread Spec: M48×0.75 male on one side, M48×0.75\nfemale on the other (double-threaded) Compatibility: Works with 2\"\naccessories that use the M48 (48 mm) filter thread\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n  \u003cul class=\"a\"\u003e\n         \u003cli\u003e**Dial In Precise Backfocus:** Five rings (5\/7\/15\/20\/30 mm) stack in any combination to solve spacing for astrophotography and eyepiece projectionachieve fine adjustment from 5 mm up to 77 mm total.\u003c\/li\u003e\n         \u003cli\u003e**True 2\" Interface (M480.75):** Double-threaded male \u0026amp; female M48 on every ring for easy stacking and broad compatibility with 2\" accessories that use the 48 mm filter thread (flatteners, reducers, filter holders, OAGs). *Note: M48 (2\" filter thread), not M42\/T-2.*\u003c\/li\u003e\n         \u003cli\u003e**All-Metal, Anodized Build:** Durable aluminum construction with a hard, matte anodized finish resists wear and reflections; precisely cut threads engage smoothly to help prevent binding or cross-threading.\u003c\/li\u003e\n         \u003cli\u003e**Maintain Optical Alignment:** Tight tolerances help keep the optical train square and repeatable when adding or removing ringsideal for critical spacing on reducers\/flatteners and camera adapters.\u003c\/li\u003e\n         \u003cli\u003e**QCd \u0026amp; Ready for the Field:** Each set is test-assembled and visually inspected for fit and finish before packing, so you can focus on capturing sharp, high-contrast images.\u003c\/li\u003e\n  \u003c\/ul\u003e","brand":"starboosa","offers":[{"title":"Default Title","offer_id":44381904273588,"sku":"B0FNCDLJQG","price":225.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/9906\/1172\/files\/B0FNCDLJQG.jpg?v=1789138315","url":"https:\/\/auspowers.com\/products\/m48-2-inch-extension-tube-kit-5-7-15-20-30mm-rings-m48-0-75","provider":"AusPower Australia","version":"1.0","type":"link"}