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Baader Planetarium Baader Wide-T-Ring for Leica, Sigma, & Panasonic L-Mount
Baader Planetarium Baader Wide-T-Ring for Leica, Sigma, & Panasonic L-Mount
Baader Planetarium Baader Wide-T-Ring for Leica, Sigma, & Panasonic L-Mount
Baader Planetarium Baader Wide-T-Ring for Leica, Sigma, & Panasonic L-Mount
Baader Planetarium Baader Wide-T-Ring for Leica, Sigma, & Panasonic L-Mount
Baader Planetarium Baader Wide-T-Ring for Leica, Sigma, & Panasonic L-Mount
Baader Planetarium Baader Wide-T-Ring for Leica, Sigma, & Panasonic L-Mount
Baader Planetarium Baader Wide-T-Ring for Leica, Sigma, & Panasonic L-Mount
Baader Planetarium Baader Wide-T-Ring for Leica, Sigma, & Panasonic L-Mount
Baader Planetarium Baader Wide-T-Ring for Leica, Sigma, & Panasonic L-Mount
Baader Planetarium Baader Wide-T-Ring for Leica, Sigma, & Panasonic L-Mount
Baader Planetarium Baader Wide-T-Ring for Leica, Sigma, & Panasonic L-Mount
Baader Planetarium Baader Wide-T-Ring for Leica, Sigma, & Panasonic L-Mount
Baader Planetarium Baader Wide-T-Ring for Leica, Sigma, & Panasonic L-Mount
Baader Planetarium Baader Wide-T-Ring for Leica, Sigma, & Panasonic L-Mount

Baader Planetarium Baader Wide-T-Ring for Leica, Sigma, & Panasonic L-Mount

by Baader Planetarium
SKU BAA-2408337
CA$50.00 - CA$50.00
CA$50.00
CA$50.00 - CA$50.00
CA$50.00
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  • Connects Leica, Sigma, and Panasonic L-mount cameras to telescopes
  • Native Baader S52 dovetail connection for maximum clear aperture
  • Includes a removable T-2 (M42x0.75) threaded insert for universal compatibility
  • Engineered to eliminate vignetting on full-frame and large-format sensors
  • Modular design integrates with Baader M48, M68, and UFC filter systems
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • Baader Wide-T-Ring for Leica, Sigma, & Panasonic L-Mount

    The 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.

    Beyond T-2: The S52 Advantage for L-Mount Cameras

    A 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.

    A Gateway to the Baader System: M48, M68, and UFC Integration

    This 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.

    • M48 (2-inch Filter) Thread: Use adapter #2958552 to connect to 2-inch flatteners, correctors, and filter wheels.
    • M68 Thread: Adapt to the large-format M68 standard with adapter #2458252 for direct connection to high-end focusers and correctors.
    • Baader UFC System: Attach directly to the Universal Filter Changer using adapter #2459119, placing filters as close as possible to the camera sensor.

    Wider is Better: Baader Wide-T-Ring vs. Standard T-Rings

    While 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.

    The 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.

  • Why do I need a Baader Wide-T-Ring for my Panasonic L-mount camera instead of a standard T-ring?

    A 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 Baader Wide-T-Ring 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.

    What is the S52 dovetail on the Baader Wide-T-Ring?

    The 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.

    Can I use my 2-inch (M48) filters with this Baader Wide-T-Ring?

    Yes. To connect the Wide-T-Ring to an M48-threaded accessory like a filter drawer or flattener, you will need the optional Baader S52 / M48 adapter (#2958552). This converts the ring's native S52 dovetail to a standard female M48x0.75 thread.

    How does this Wide-T-Ring help when imaging a large target like the Andromeda Galaxy (M31) with my full-frame Sigma fp L?

    When 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 Baader Wide-T-Ring 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.

    I have a corrector with an M68 thread. How do I connect my Leica SL2 to it with the Baader Wide-T-Ring?

    To achieve a robust, large-format connection, you would use the Baader S52 / M68 adapter (#2458252). 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.

    Is the T-2 insert on the Baader Wide-T-Ring removable?

    Yes, 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.

  • Net weight (kg) 0.04
    Camera Adaptable Leica, Sigma, Panasonic L-Bayonet
    Compatible Brands Astro T-2, Baader Planetarium, Other
    Inner Diameter / Clear Aperture (mm) 46 mm
    Outer Diameter 61 mm
    Type of Adapter Camera Adapter
    Optical length (mm) 8.3
    Inner Connection (lens sided) M42 x 0.75 (T-2), S52

    • Wide-T-Ring Body for L-Mount with S52 Dovetail

      × 1

    • S52 to T-2 Female Threaded Insert

      × 1

  • Baader Planetarium Warranty