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Black metal adapter ring with Nikon Z bayonet mount and threaded T-2 centre, knurled grip edges

Baader Planetarium

Baader Planetarium Wide T-Ring D52i T-2 S52 Nikon Z Bayonet

SKU CH-BRSB-5BKPA

Connects Nikon Z cameras to Astro T-2 and S52 dovetail systems for secure astrophotography mounting

  • Secure Nikon Z bayonet connection prevents light leaks
  • Dual S52 dovetail and T-2 thread fit Astro and Baader systems
  • S52 to M48 adapter 2958552 adds 48 mm female thread option
  • S52 to M68 adapter 2458252 enables direct 68 mm male thread attachment
  • UFC S52 dovetail adapter 2459119 allows in-camera filter changes

Wide T-Ring for Nikon Z Bayonet

The Baader Planetarium Wide T-Ring connects a Nikon Z mirrorless camera to Astro T-2 and S52 dovetail systems. It provides a secure, wobble-free bayonet fit that prevents light leaks and maintains alignment for astrophotography. An included Allen key and adapter rings make the mechanical setup quick and straightforward.

Upgrade from basic T-ring adapters

This unit adds an S52 dovetail alongside the standard T-2 thread, letting you reach wider apertures without swapping parts. The jump is worth it when you plan to use M48, M68 or UFC filter changers on the same camera body. It replaces separate step-down rings and dedicated camera-side adapters.

Stable under long exposures

The precision-machined bayonet lock holds the camera rigidly during extended tracking sessions, avoiding the micro-shifts that blur deep-sky frames. Optional S52-to-M48 (#2958552) and S52-to-M68 (#2458252) adapters thread directly onto the dovetail without adding flex. The UFC S52 camera-adapter (#2459119) mounts filters in front of the sensor while preserving the same rigid stack.

How it compares

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

Price $33.99
Cheaper than about 75% of the 1,401 comparable items (median $93.99).

Specifications

No published specifications for this item yet.

Questions about this item

Will the S52 dovetail clear my Nikon Z body's grip without vignetting?

The Wide T-Ring adds an S52 dovetail directly behind the T-2 ring, so the camera sits at the standard flange distance and clears the grip on all Z-mount bodies.

Which side of the included Allen key tightens the T-2 lock ring without stripping it?

Use the short arm of the supplied Allen key on the T-2 lock ring; the long arm is for the S52 dovetail screws, and over-torquing the T-2 side is the common mistake.

When does the S52 dovetail need replacing if I swap between the M48 adapter #2958552 and the M68 adapter #2458252?

The S52 dovetail is stainless steel and rated for repeated adapter changes; replace it only if the dovetail faces show visible wear or the locking screws no longer hold firm.

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