{"product_id":"starizona-canon-rf-wide-t-ring","title":"Starizona Canon RF Wide T-Ring","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts Canon RF-mount mirrorless cameras to telescopes\u003c\/li\u003e\n\u003cli\u003eWide M48 (2-inch filter) thread connection\u003c\/li\u003e\n\u003cli\u003eUltra-thin 10mm \"T-minus\" profile\u003c\/li\u003e\n\u003cli\u003eIdeal for short backfocus imaging trains\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eCanon RF Wide T-Ring\u003c\/h2\u003e\n\u003cp\u003eThe Canon RF Wide T-Ring adapts Canon RF-mount mirrorless cameras to your telescope using a wide M48 female thread, bypassing the narrower M42 \"T-thread\" to minimize vignetting. Its \"T-minus\" design is only 10mm thick, providing critical space savings for modern, complex imaging trains.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 10mm Profile for Short Backfocus Systems\u003c\/h3\u003e\n\u003cp\u003eThis T-ring's key feature is its slim 10mm optical thickness. This minimal profile is essential when building imaging trains with very little available backfocus, or when you need to insert additional accessories like a filter drawer. By consuming less of the precious backfocus distance, this adapter allows for the correct spacing of flatteners, reducers, and off-axis guiders, making it a crucial component for achieving a sharp, flat field with Canon RF cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the telescope-side thread on the Canon RF Wide T-Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Canon RF Wide T-Ring uses a wide \u003cstrong\u003eM48 thread\u003c\/strong\u003e. This is larger than the standard M42 T-thread and is often preferred for full-frame and large-sensor cameras to prevent vignetting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow thick is the Canon RF Wide T-Ring and why is that important?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ring is only \u003cstrong\u003e10mm thick\u003c\/strong\u003e. This \"T-minus\" style is significantly thinner than standard T-rings, which is critical for imagers working with short backfocus requirements or needing to fit accessories like a filter slider into the optical path.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich cameras will the Canon RF Wide T-Ring fit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis T-ring is specifically designed to fit \u003cstrong\u003eCanon RF-mount mirrorless cameras\u003c\/strong\u003e. It will not fit Canon EF or EF-S DSLR cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starizona-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eStarizona Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Starizona","offers":[{"title":"Default Title","offer_id":68033925841181,"sku":"STZ-TRING-RF-10","price":49.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Starizona-Canon-RF-Wide-T-Ring-1_89bd7cee-cdcf-475c-8b50-d1d7f6aca9fc.jpg?v=1794375622","url":"https:\/\/davidastro.com\/en-int\/products\/starizona-canon-rf-wide-t-ring","provider":"David Astro","version":"1.0","type":"link"}