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Two silver metal rings with bayonet mounts and threaded openings

Baader Planetarium

Baader Planetarium Wide T-Ring Set D52i T-2 S52 Sony Alpha Minolta Maxxum

SKU CH-CBJ8-76CEY

Connects Sony Alpha/Minolta Maxxum cameras to Astro T-2 systems with 8.3 mm optical length and 41 mm clear aperture for stable, wide-field astrophotography

  • Connects Sony Alpha/Minolta Maxxum to Astro T-2 systems for versatile astrophotography
  • 3 mm optical length maintains precise sensor positioning for sharp astronomical images
  • Robust bayonet outer connection minimises vibrations during long exposures
  • 41 mm T-2 and 44.7 mm clear aperture maximise light throughput for brighter results
  • S52 dovetail enables M48, M68 or Baader UFC adapters for flexible configurations

Wide T-Ring Set for Sony Alpha

The Baader Planetarium Wide T-Ring Set connects Sony Alpha and Minolta Maxxum cameras to Astro T-2 systems. It includes a D52i to T-2 adapter and an S52 dovetail ring for versatile astrophotography configurations. The set is designed for photographers who want a secure, precision link between camera and telescope.

41mm T-2 aperture with 8.3mm optical length

A 41mm clear aperture on the T-2 side and a 44.7mm inner diameter on the S52 side maximise light throughput for bright, detailed images. The 8.3mm optical length maintains precise sensor positioning across the frame. This combination supports wide-field imaging without vignetting on full-frame sensors.

Bayonet outer connection and S52 modularity

A robust bayonet outer connection minimises vibration during long exposures. The S52 dovetail accepts optional adapters: M48 female thread via #2958552, S52 barrel #2958551 without T-2 reduction, or M68 male thread via #2458252. It also integrates with the Baader Universal Filter Changer system. Builders needing a simple T-ring without S52 flexibility or those requiring a different camera mount will need a different solution.

Highlights

  • Connects Sony Alpha/Minolta Maxxum to Astro T-2 systems for versatile astrophotography
  • 3 mm optical length maintains precise sensor positioning for sharp astronomical images
  • Robust bayonet outer connection minimises vibrations during long exposures
  • 41 mm T-2 and 44.7 mm clear aperture maximise light throughput for brighter results
  • S52 dovetail enables M48, M68 or Baader UFC adapters for flexible configurations

Specifications

No published specifications for this item yet.

Questions about this item

Will the 8.3 mm optical length keep my Sony Alpha sensor at the correct back-focus when I use my existing T-2 telescope adapter?

Yes, the ring is machined to an 8.3 mm optical length so the sensor sits at the standard T-2 back-focus distance without extra spacers.

How can I confirm the 41 mm clear aperture is actually transmitting the full light cone from my telescope?

Inspect the front of the mounted ring — you should see an unobstructed 41 mm opening that matches the T-2 thread diameter, allowing the full light path to reach the sensor.

Does the box include the S52-to-M48 adapter #2958552 and the S52 barrel #2958551, or must I order them separately?

The set supplies the Wide T-Ring with integrated T-2 thread and S52 dovetail only; both the #2958552 M48 adapter and the #2958551 S52 barrel are sold separately.

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