{"product_id":"svbony-sv195-m48x0-75-t-ring-adapter-for-canon-eos-dslr","title":"SVBONY SV195 M48x0.75 T-Ring Adapter for Canon EOS DSLR","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Canon EF\/EF-S mount cameras to M48x0.75 threaded accessories\u003c\/li\u003e\n\u003cli\u003e3-screw system allows for precise sensor tilt and orthogonality adjustment\u003c\/li\u003e\n\u003cli\u003eM48 \"wide\" T-ring format minimizes vignetting on larger sensors\u003c\/li\u003e\n\u003cli\u003eDurable, all-metal construction ensures a secure connection\u003c\/li\u003e\n\u003cli\u003eIdeal for astrophotography setups using field flatteners or coma correctors\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\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\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\u003eSvbony SV195 T Ring Adapter EF Mount for Canon EOS DSLR Telescope\u003c\/h2\u003e\n\u003cp\u003eThe Svbony SV195 T Ring Adapter provides a secure, adjustable connection between your Canon EF-mount DSLR and any M48x0.75 threaded accessory. Unlike standard rings, its unique 3-screw adjustment system allows you to correct for sensor tilt, ensuring your camera is perfectly orthogonal to the optical axis for sharp, consistent stars across the frame.\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\u003eM48x0.75 Threads: A Direct Connection to Your Imaging Train\u003c\/h3\u003e\n\u003cp\u003eThe SV195 features standard female M48x0.75 threads, making it the ideal interface for connecting your Canon EOS camera to modern field flatteners, reducers, or coma correctors. This larger thread size minimizes vignetting compared to older T2 (M42) standards, especially when using cameras with full-frame or APS-C sensors.\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\u003e3-Screw Adjustment: Achieve Perfect Sensor Orthogonality\u003c\/h3\u003e\n\u003cp\u003eThe critical feature of the SV195 is its integrated horizontal adjustment mechanism. By loosening and tightening three small screws on the adapter's side with the included tool, you can precisely tilt the inner ring, correcting for any sensor misalignment in your imaging train. This eliminates the frustration of elongated stars in one corner of your image, a common problem caused by minute mechanical tolerances stacking up between components.\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\u003eSV195 vs. Standard T-Rings: The Advantage of Adjustability\u003c\/h3\u003e\n\u003cp\u003eA standard T-ring offers a simple, fixed connection. While effective, it provides no way to compensate for tilt. The Svbony SV195 directly addresses this limitation, giving you the control to achieve perfect orthogonality, a feature typically found in much more expensive, specialized adapters. For imagers serious about edge-of-field star quality, this adjustability is not a luxury—it's essential.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main benefit of the Svbony SV195 T-Ring over a non-adjustable one?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe main benefit of the Svbony SV195 is its \u003cstrong\u003e3-screw adjustment system\u003c\/strong\u003e. This allows you to correct for sensor tilt, ensuring your stars are sharp across the entire field of view, which is something a fixed, non-adjustable T-ring cannot do.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich cameras are compatible with the Svbony SV195 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Svbony SV195 is designed for any Canon DSLR or mirrorless camera that uses the \u003cstrong\u003eCanon EF or EF-S lens mount\u003c\/strong\u003e. This includes the vast majority of Canon EOS cameras. It is not compatible with Canon's newer RF or M mount systems without an additional EF-mount adapter from Canon.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the M48x0.75 thread on the Svbony SV195 connect to?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe M48x0.75 female thread is a common standard in astrophotography, often called a \"2-inch filter thread\" or \"wide T-ring thread.\" It connects directly to most modern \u003cstrong\u003efield flatteners, coma correctors, and off-axis guiders\u003c\/strong\u003e that are designed to illuminate larger sensors and minimize vignetting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm using the Svbony SV195 with my 8\" SCT and a focal reducer. Why are my stars in one corner misshapen?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis is likely due to sensor tilt, which the Svbony SV195 is designed to fix. Use the included tool to slightly loosen the three adjustment screws. While viewing a star field on your screen, make tiny adjustments to the screws to change the camera's tilt until the stars in all four corners are as round as possible, then gently retighten them.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I adjust the Svbony SV195 to align my Canon 6D with my refractor's field flattener?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, securely attach the Svbony SV195 to your Canon 6D and then thread it onto the M48 port of your flattener. Take a short test exposure of a dense star field. If you notice elongated stars in one corner, use the adjustment screws to slightly alter the camera's angle relative to the flattener until a new test image shows improved star shapes across the entire full-frame sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the adjustment process for the Svbony SV195 difficult?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe process is straightforward but requires patience. It involves making small, incremental changes with the three adjustment screws while taking test images to see the effect. The key is to make minor adjustments to one screw at a time until perfect alignment is achieved.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSV195\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003eM48x0.75 Female Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection\u003c\/td\u003e\n\u003ctd\u003eCanon EF \/ EF-S Bayonet Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustment Mechanism\u003c\/td\u003e\n\u003ctd\u003e3-Screw Orthogonal Tilt Adjustment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eCanon EOS DSLR \/ Mirrorless Cameras (EF\/EF-S Mount)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSvbony 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861267509533,"sku":"SV-W2054B","price":13.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV195-T-Ring-Adapter-EF-Mount-for-Canon-EOS-DSLR-Telescope-1_793174ee-eb03-42df-aa89-4ae15cef88b2.jpg?v=1788660855","url":"https:\/\/davidastro.com\/products\/svbony-sv195-m48x0-75-t-ring-adapter-for-canon-eos-dslr","provider":"David Astro","version":"1.0","type":"link"}