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Baader Wide T-Ring Nikon - T-2 & S52
Baader Wide T-Ring Nikon - T-2 & S52
Baader Wide T-Ring Nikon - T-2 & S52
Baader Wide T-Ring Nikon - T-2 & S52
Baader Wide T-Ring Nikon - T-2 & S52
Baader Wide T-Ring Nikon - T-2 & S52
Baader Wide T-Ring Nikon - T-2 & S52
Baader Wide T-Ring Nikon - T-2 & S52
Baader Wide T-Ring Nikon - T-2 & S52
Baader Wide T-Ring Nikon - T-2 & S52

Baader Wide T-Ring Nikon - T-2 & S52

by Baader Planetarium
SKU BAA-2408333
CA$50.00 - CA$50.00
CA$50.00
CA$50.00 - CA$50.00
CA$50.00
Price Match Policy!
  • Connects Nikon F-mount cameras to telescopes
  • Features both a standard T-2 (M42) thread and a larger S52 dovetail
  • Wider S52 aperture significantly improves sensor illumination
  • Reduces or eliminates vignetting on full-frame and large APS-C sensors
  • Integrates with the Baader UFC, M48, and M68 accessory systems
1 in stock
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Baader Wide T-Ring Nikon - T-2 & S52

    The Baader Wide T-Ring for Nikon directly addresses the illumination bottleneck of standard T-2 adapters, especially when using full-frame or large-format camera sensors. This ring incorporates both a standard T-2 (M42x0.75) internal thread for universal compatibility and a much larger S52 dovetail connection, which can be adapted up to M68 to ensure your camera's sensor is evenly illuminated, edge to edge.

    Dual T-2 and S52 Connections: Beyond the M42 Bottleneck

    A standard T-ring relies solely on the M42 T-2 thread, which was designed decades ago for 35mm film. On modern, large-format digital sensors, this narrow M42 aperture can act as a stop, cutting off light to the corners of the sensor and causing significant vignetting. The Baader Wide T-Ring solves this by building the adapter around the larger S52 dovetail format, providing a wider, unvignetted light path for your Nikon camera.

    For backward compatibility, an inner T-2 ring is included, allowing you to connect to any standard T-thread accessory. However, the true strength of this design is realized when you remove the T-2 insert and utilize the full S52 aperture with other Baader adapters, maximizing light throughput to your sensor.

    The Baader S52 System: Adapting to M48, M68, and UFC

    This Wide T-Ring is more than a simple adapter; it is your camera's entry point into Baader's extensive ecosystem of imaging accessories. The S52 dovetail allows you to create a rigid, wide-aperture connection to various components, ensuring your imaging train is both mechanically solid and optically optimized.

    • M48 Connections: With the S52 / M48 adapter (#2958552), you can connect the ring to popular 2" filter threads and coma correctors.
    • M68 Connections: For large focusers and high-end optical systems, the S52 / M68 adapter (#2458252) provides a robust, large-diameter connection.
    • UFC Integration: Attach your Nikon camera directly to the Baader Universal Filter Changer using the UFC S52 dovetail camera-adapter (#2459119), placing filters as close as possible to the sensor.
    • S52 Barrel: Use the S52 barrel (#2958551) to insert the system directly into a 2" focuser while maintaining the wide internal aperture.

    Baader Wide T-Ring vs. A Standard T-2 Ring

    While a standard T-ring offers a simple, low-cost way to attach your camera, its M42 aperture is a known weak point in modern imaging trains. For imagers using full-frame DSLRs or cameras with large APS-C sensors, the vignetting caused by a standard T-ring can be difficult to correct with flat frames, especially with fast optical systems.

    The Baader Wide T-Ring is engineered specifically to solve this problem. By providing the much larger S52 light path, it ensures the entire sensor is illuminated. If your imaging is limited by vignetting and you own a Nikon camera with a large sensor, the Baader Wide T-Ring is a critical upgrade to your optical train.

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

    The primary advantage is its larger S52 internal aperture compared to the restrictive M42 thread on standard T-rings. This wider opening significantly reduces or eliminates vignetting (darkened corners) on cameras with full-frame or large APS-C sensors, resulting in a more evenly illuminated image.

    Can I use the Baader Wide T-Ring with my existing T-2 accessories?

    Yes. The Baader Wide T-Ring includes an inserted T-2 ring, making it fully compatible with all standard T-thread (M42x0.75) accessories like flatteners, off-axis guiders, and extension tubes. You can start with your existing T-2 setup and upgrade to the wider S52 system later.

    How do I connect the Baader Wide T-Ring to a 2" focuser with M48 threads?

    To connect to an M48 (2" filter) thread, you will need the optional Baader S52 / M48 adapter (#2958552). This adapter threads into the Wide T-Ring after removing the inner T-2 insert, giving you a female M48 thread while maintaining a wide, unvignetted light path.

    Will this Baader T-ring help reduce vignetting on my full-frame Nikon camera?

    Absolutely. This is the core purpose of the Baader Wide T-Ring. A full-frame sensor is particularly susceptible to vignetting from standard M42 T-rings. By using the S52 connection path, this ring provides a much larger clear aperture, ensuring the light cone from the telescope fully illuminates the corners of your full-frame sensor.

    What do I need to attach this Baader Wide T-Ring to the Baader UFC filter changer?

    You will need the Baader UFC S52 Dovetail Camera-Adapter (#2459119). This accessory attaches to the Universal Filter Changer base and allows the S52 dovetail on the Wide T-Ring to slide in and lock securely, creating a rigid, wide-aperture connection for placing filters close to your Nikon camera sensor.

    Is this Baader Wide T-Ring compatible with all Nikon cameras?

    This ring is designed for Nikon cameras that use the F-mount, which includes the vast majority of Nikon DSLRs. It is not compatible with the newer mirrorless Z-mount cameras, which require a different adapter.

  • Net weight (kg) 0.03
    Camera Adaptable Nikon F Bajonett
    Compatible Brands Astro T-2, Baader Planetarium, Other
    Inner Diameter / Clear Aperture (mm) 41mm (T-2) / 40.9mm
    Type of Adapter Camera Adapter
    Optical length (mm) 8.4
  • Baader Planetarium Warranty