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

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

by Baader Planetarium
SKU BAA-2408336
CA$50.00 - CA$50.00
CA$50.00
CA$50.00 - CA$50.00
CA$50.00
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  • Connects Canon R-mount mirrorless cameras to telescopes
  • Features a removable inner T-2 (M42x0.75) thread adapter
  • Native connection is a wide S52 dovetail for maximum clear aperture
  • Adaptable to M48 and M68 threads with optional Baader adapters
  • Integrates directly with the Baader UFC (Universal Filter Changer) system
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

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

    The Baader Wide T-Ring for Canon R cameras provides a critical, wide-aperture link to your telescope, offering both a standard T-2 (M42x0.75) thread and a larger S52 dovetail connection in a single adapter. This dual-format design allows direct integration into existing T-2 systems while providing a clear upgrade path to larger M48 or M68 thread standards to prevent vignetting with full-frame sensors.

    Baader Wide T-Ring: Native T-2 and S52 Connectivity for Canon R

    This adapter is engineered for flexibility, attaching directly to the Canon R camera bayonet. It ships with an inserted T-2 ring, ensuring immediate compatibility with the vast ecosystem of T-threaded accessories. However, the true advantage is the underlying S52 dovetail, which becomes accessible by removing the T-2 insert, providing a significantly larger and more robust connection point.

    Beyond T-2 Threads: Unlocking Full Illumination with the S52 System

    The standard 42mm clear aperture of a T-2 thread can become a bottleneck, causing vignetting or darkening at the corners of images taken with large, full-frame camera sensors. The Baader Wide T-Ring's native S52 connection provides a wider light path, ensuring the sensor is fully illuminated. This design is critical for imagers using fast optical systems who need to capture every available photon across the entire frame.

    System Integration: From M48 and M68 to the Baader UFC

    The S52 dovetail is the gateway to the broader Baader Astro T-2 System. By using optional adapters, you can transform the connection to suit nearly any high-end imaging train. This modularity protects your investment and adapts to your evolving equipment needs.

    • M48 Connection: Use the S52 / M48 adapter (#2958552) to connect to the common M48x0.75 thread found on many field flatteners and coma correctors.
    • M68 Connection: The S52 / M68 adapter (#2458252) allows a secure, wide-format attachment to large focusers and professional optical systems.
    • Filter Integration: Connect directly to the Baader Universal Filter Changer using the UFC S52 dovetail camera-adapter (#2459119), placing filters as close to the camera sensor as possible.

    Wide T-Ring vs. Standard T-2 Ring: The Clear Aperture Advantage

    While a standard T-ring offers a simple connection, it limits your system to the T-2 thread's physical aperture. For Canon R cameras with large sensors, this often results in compromised image quality at the edges. The Baader Wide T-Ring solves this by providing the larger S52 format as its primary interface. You get the backward compatibility of T-2 when you need it, with the superior illumination of S52 for serious imaging, eliminating the primary bottleneck in the optical path.

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

    The primary advantage is its larger clear aperture. While it includes a standard T-2 thread insert, its native connection is a wider S52 dovetail. This larger opening prevents vignetting (darkened corners) on full-frame sensors, which is a common issue with standard T-2 adapters.

    How do I connect the Baader Wide T-Ring to an M48 thread on my flattener?

    You will need the optional Baader S52 / M48 adapter (#2958552). First, unthread the inner T-2 ring from the Wide T-Ring body to reveal the S52 dovetail. Then, attach the S52/M48 adapter to create a female M48 thread, ready to connect to your flattener.

    Is the Baader Wide T-Ring compatible with the Baader UFC filter changer?

    Yes. To connect it, you need the optional Baader UFC S52 Dovetail Camera Adapter (#2459119). This allows you to attach your Canon R camera directly to the UFC base, enabling you to place filters very close to the camera sensor for optimal performance.

    Why does this Baader T-ring have both T-2 and S52 connections?

    This dual design offers maximum flexibility. The included T-2 insert provides instant compatibility with the vast number of existing T-threaded accessories. The larger, native S52 dovetail is a modern, wider standard designed for larger sensors, providing a clear upgrade path and better illumination without forcing you to replace all your existing T-2 gear.

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

    Yes, absolutely. This is precisely the scenario the Wide T-Ring is designed for. A standard T-ring would act as a bottleneck for the light cone from a fast refractor, clipping the light before it reaches the corners of your Canon R5's full-frame sensor. By using the native S52 connection (and appropriate adapters to connect to your flattener), you maintain a wider light path, which significantly reduces vignetting.

    I have a 2" nosepiece with T-2 threads. Can I use it with the Baader Wide T-Ring for my Canon R6?

    Yes. The Baader Wide T-Ring comes with the T-2 insert pre-installed. You can simply thread your 2" T-threaded nosepiece directly into the ring, attach it to your Canon R6, and insert it into your telescope's 2" focuser. You don't need any additional adapters for this common configuration.

  • Net weight (kg) 0.05
    Camera Adaptable Canon R Bajonett
    Compatible Brands Astro T-2, Baader Planetarium
    Inner Diameter / Clear Aperture (mm) 41mm (T-2) / 48.3mm
    Outer Diameter 66.5mm
    Type of Adapter Camera Adapter
    Optical length (mm) 8.3
    Inner Connection (lens sided) M42 x 0.75 (T-2), S52
  • Baader Planetarium Warranty