{"product_id":"baader-planetarium-wide-t-ring-for-leica-sigma-panasonic-l-mount","title":"Baader Planetarium Baader Wide-T-Ring for Leica, Sigma, \u0026 Panasonic L-Mount","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Leica, Sigma, and Panasonic L-mount cameras to telescopes\u003c\/li\u003e\n\u003cli\u003eNative Baader S52 dovetail connection for maximum clear aperture\u003c\/li\u003e\n\u003cli\u003eIncludes a removable T-2 (M42x0.75) threaded insert for universal compatibility\u003c\/li\u003e\n\u003cli\u003eEngineered to eliminate vignetting on full-frame and large-format sensors\u003c\/li\u003e\n\u003cli\u003eModular design integrates with Baader M48, M68, and UFC filter systems\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\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\u003eBaader Wide-T-Ring for Leica, Sigma, \u0026amp; Panasonic L-Mount\u003c\/h2\u003e\n\u003cp\u003eThe Baader Wide-T-Ring for L-mount cameras addresses the most common bottleneck in modern imaging trains: the restrictive aperture of a standard T-ring. Engineered around the larger Baader S52 dovetail system, this adapter provides a wide, secure connection that fully illuminates the large sensors found in Leica, Sigma, and Panasonic cameras, preventing the vignetting that can compromise flat-field imaging. It includes a standard T-2 insert for backward compatibility while serving as the gateway to a fully modular system of adapters and filter changers.\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\u003eBeyond T-2: The S52 Advantage for L-Mount Cameras\u003c\/h3\u003e\n\u003cp\u003eA traditional T-2 connection was designed for film cameras and small sensors, but it acts as a choke point for the light cone reaching today's full-frame chips. The Baader Wide-T-Ring solves this by using a much larger native S52 dovetail aperture, ensuring that the light from your corrector or flattener reaches the corners of your sensor without being clipped. This results in more even field illumination and significantly reduces the need for aggressive flat-frame correction in post-processing.\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 Gateway to the Baader System: M48, M68, and UFC Integration\u003c\/h3\u003e\n\u003cp\u003eThis Wide-T-Ring is more than a camera adapter; it's the foundation of a professional, threaded imaging train. The native S52 dovetail allows for robust, flex-free connections to a range of professional astronomy components. By adding optional adapters, you can seamlessly integrate your L-mount camera with the most common and secure standards in astrophotography.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eM48 (2-inch Filter) Thread:\u003c\/strong\u003e Use adapter #2958552 to connect to 2-inch flatteners, correctors, and filter wheels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM68 Thread:\u003c\/strong\u003e Adapt to the large-format M68 standard with adapter #2458252 for direct connection to high-end focusers and correctors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBaader UFC System:\u003c\/strong\u003e Attach directly to the Universal Filter Changer using adapter #2459119, placing filters as close as possible to the camera sensor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eWider is Better: Baader Wide-T-Ring vs. Standard T-Rings\u003c\/h3\u003e\n\u003cp\u003eWhile a standard T-ring provides a basic connection, it often becomes the limiting factor in an otherwise high-end imaging setup. Its narrow internal diameter physically blocks a portion of the incoming light cone, especially in fast optical systems (f\/5 or lower) or when using full-frame sensors.\u003c\/p\u003e\n\u003cp\u003eThe Baader Wide-T-Ring's enlarged S52 aperture provides a completely unobstructed light path. This ensures that your expensive optics and large camera sensor can work to their full potential, delivering images with bright, clean corners and minimizing the dark vignetting patterns that plague systems built on the older T-2 standard.\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\"\u003eWhy do I need a Baader Wide-T-Ring for my Panasonic L-mount camera instead of a standard T-ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA standard T-ring has a narrow internal diameter that can block light from reaching the corners of a full-frame sensor, causing vignetting (darkened corners). The \u003cstrong\u003eBaader Wide-T-Ring\u003c\/strong\u003e uses a larger S52 aperture to provide a clear, unobstructed light path, ensuring your entire sensor is evenly illuminated, which is critical for high-quality astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the S52 dovetail on the Baader Wide-T-Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe S52 is a proprietary Baader connection standard featuring a dovetail clamp mechanism. It offers a larger clear aperture than traditional T-2 or M48 threads and provides a secure, non-rotating connection. It serves as the base system for this Wide-T-Ring, allowing it to adapt to other thread standards like T-2, M48, and M68.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use my 2-inch (M48) filters with this Baader Wide-T-Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. To connect the Wide-T-Ring to an M48-threaded accessory like a filter drawer or flattener, you will need the optional \u003cstrong\u003eBaader S52 \/ M48 adapter (#2958552)\u003c\/strong\u003e. This converts the ring's native S52 dovetail to a standard female M48x0.75 thread.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this Wide-T-Ring help when imaging a large target like the Andromeda Galaxy (M31) with my full-frame Sigma fp L?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen framing a large object like the Andromeda Galaxy (M31), you need every pixel of your full-frame sensor. A standard T-ring would darken the corners of your image, clipping the faint outer spiral arms. The \u003cstrong\u003eBaader Wide-T-Ring\u003c\/strong\u003e ensures even illumination across the entire Sigma fp L sensor, preserving the faint details in the corners of your frame and producing a superior final image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a corrector with an M68 thread. How do I connect my Leica SL2 to it with the Baader Wide-T-Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo achieve a robust, large-format connection, you would use the \u003cstrong\u003eBaader S52 \/ M68 adapter (#2458252)\u003c\/strong\u003e. This accessory attaches to the Wide-T-Ring's S52 dovetail and provides a male M68x1 thread, allowing you to connect your Leica SL2 directly to professional-grade correctors and focusers without any bottlenecks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the T-2 insert on the Baader Wide-T-Ring removable?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the T-2 insert is removable. This allows you to use the full, larger S52 aperture of the Wide-T-Ring body when connecting to other Baader S52 accessories or when adapting to M48 and M68 threads for a fully optimized, wide-aperture imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWide-T-Ring Body for L-Mount with S52 Dovetail\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eS52 to T-2 Female Threaded Insert\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":52913142858013,"sku":"BAA-2408337","price":48.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/BaaderPlanetarium-Wide-T-Ring-for-Leica-Sigma-Panasonic-L-with-D52-to-T-2i-1_c1cc759a-d417-49af-b33e-ccb565a5f09d.jpg?v=1789086698","url":"https:\/\/davidastro.com\/fr-us\/products\/baader-planetarium-wide-t-ring-for-leica-sigma-panasonic-l-mount","provider":"David Astro","version":"1.0","type":"link"}