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Baader Wide T-Ring Canon EOS - T-2 & S52
Baader Wide T-Ring Canon EOS - T-2 & S52
Baader Wide T-Ring Canon EOS - T-2 & S52
Baader Wide T-Ring Canon EOS - T-2 & S52
Baader Wide T-Ring Canon EOS - T-2 & S52
Baader Wide T-Ring Canon EOS - T-2 & S52
Baader Wide T-Ring Canon EOS - T-2 & S52
Baader Wide T-Ring Canon EOS - T-2 & S52
Baader Wide T-Ring Canon EOS - T-2 & S52
Baader Wide T-Ring Canon EOS - T-2 & S52
Baader Wide T-Ring Canon EOS - T-2 & S52

Baader Wide T-Ring Canon EOS - T-2 & S52

by Baader Planetarium
SKU BAA-2408332
CA$50.00 - CA$50.00
CA$50.00
CA$50.00 - CA$50.00
CA$50.00
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  • Connects Canon EOS cameras to telescopes
  • Features a wide S52 dovetail for maximum illumination
  • Includes a removable T-2 (M42x0.75) threaded insert for compatibility
  • Eliminates the primary vignetting bottleneck of standard T-rings
  • Adapts to M48, M68, and the Baader UFC system with optional adapters
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Baader Wide T-Ring Canon EOS - T-2 & S52

    The Baader Wide T-Ring for Canon EOS cameras directly addresses the most common bottleneck in an imaging train: the restrictive M42 (T-2) thread. By utilizing a much larger S52 dovetail connection as its primary interface, this T-ring provides a wider clear aperture to fully illuminate large camera sensors, minimizing vignetting. It includes a standard T-2 insert for universal backward compatibility, but its core design unlocks your optical system's full potential when integrated with other Baader wide-aperture components.

    Beyond the T-2: The S52 Advantage for Full-Frame Sensors

    A standard T-ring forces all light through a narrow M42 threaded opening, which can darken the corners of images taken with full-frame or large APS-C sensors. The Baader Wide T-Ring solves this by using the S52 dovetail as the main body, providing a significantly larger light path. This design ensures that the T-ring is no longer the weak link in your imaging train, allowing you to take full advantage of your telescope's corrected image circle.

    For systems that still require the M42x0.75 thread, a T-2 insert is included, offering flexibility. However, to realize the anti-vignetting benefits, you would connect the T-ring directly to other S52 components, bypassing the restrictive T-2 insert entirely.

    Native Integration with Baader M48, M68, and UFC Systems

    This T-ring is an integral part of the Baader Astro T-2 System, designed for maximum modularity. The native S52 interface allows for robust, wide-aperture connections to a variety of professional-grade correctors, focusers, and accessories using optional adapters.

    • Universal Filter Changer (UFC): Connect directly to the Baader UFC system with the optional S52 dovetail adapter (#2459119) to place filters as close as possible to your camera sensor.
    • M48 and M68 Threads: Adapt to the common M48 "wide T-thread" (#2958552) or the large M68 standard (#2458252) for a secure, wide-bore connection to high-end focusers and field flatteners.
    • S52 Barrel: Use the optional S52 barrel (#2958551) to create a wide-aperture 2" nosepiece that avoids the bottleneck of standard 2"-to-T2 adapters.

  • What is the main advantage of the Baader Wide T-Ring for my Canon EOS over a standard T-ring?

    The primary advantage is a larger clear aperture. Standard T-rings use the narrow M42 (T-2) thread, which can cause vignetting (darkened corners) on cameras with large sensors. The Baader Wide T-Ring uses a larger S52 dovetail connection, providing a wider light path that better illuminates full-frame and large APS-C sensors.

    Will this Baader Wide T-Ring help with vignetting from my full-frame Canon EOS R5 on a fast refractor?

    Yes, significantly. A full-frame sensor like the one in the EOS R5 is highly susceptible to vignetting caused by narrow T-2 adapters. By using the S52 connection path from this T-ring to your flattener or focuser, you eliminate the single biggest mechanical bottleneck, allowing your telescope's optics to illuminate the sensor more evenly.

    How do I connect the Baader Wide T-Ring to a corrector with an M48 thread?

    You will need the optional Baader S52 / M48 adapter (#2958552). This adapter threads onto your M48 corrector and presents an S52 dovetail receiver, allowing you to connect the Wide T-Ring without using the restrictive T-2 insert.

    How does the Baader Wide T-Ring integrate with the Baader UFC (Universal Filter Changer)?

    It connects directly to the UFC system using the optional Baader UFC S52 dovetail camera-adapter (#2459119). This creates a secure, wide-aperture connection that places your filters very close to the camera sensor, which is ideal for minimizing reflections and vignetting with fast optical systems.

    Can I still use my T-2 threaded accessories with this Wide T-Ring?

    Yes. The Baader Wide T-Ring comes with a removable T-2 (M42x0.75) threaded insert. This ensures you have backward compatibility with any standard T-thread accessories you already own. However, using this insert will negate the wide-aperture benefits of the S52 system.

    Can I use the Baader Wide T-Ring directly with a 2" nosepiece?

    Yes, by using the optional Baader S52 barrel (#2958551). This accessory slides into the S52 dovetail on the T-ring, creating a wide-bore 2" nosepiece. This is superior to standard 2" nosepieces that thread into a T-2 adapter, as it maintains the larger clear aperture all the way to the camera.

  • Net weight (kg) 0.04
    Camera Adaptable Canon EOS Bajonett
    Compatible Brands Astro T-2, Baader Planetarium
    Inner Diameter / Clear Aperture (mm) 41mm (T-2) / 48.1mm
    Type of Adapter Camera Adapter
    Optical length (mm) 8.3
    Inner Connection (lens sided) M42 x 0.75 (T-2), S52
  • Baader Planetarium Warranty