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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.

How it compares

Measured against everything we stock in Binoculars, Scopes & Sights, at today’s prices. Recalculated every night.

Price $45.99
Cheaper than about 68% of the 1,401 comparable items (median $93.99).

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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