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Cylindrical metal adapter with M84 and M68 threads and a 2-inch clamp ring

Baader Planetarium

Baader Planetarium Pentax M84 to Zeiss M68 Adapter Ultrashort 2" Clamp

SKU CH-FTD4-1VW3G

Adapts Pentax M84 threads to Zeiss M68 for an ultrashort 2-inch clamp on a Pentax OTA

  • Adapts Pentax M84 to Zeiss M68 threads for wider accessory choice
  • Ultrashort 2" clamp gives a compact, vibration-free connection
  • Precision machining keeps optical alignment tight for sharp images
  • Durable construction withstands repeated mounting in the field
  • Simple clamp-on fitting speeds up setup on a Pentax OTA

Pentax M84 to Zeiss M68 Adapter

This Baader Planetarium adapter converts a Pentax M84 thread to a Zeiss M68 thread on an Optical Tube Assembly. It is built for astrophotographers who need to connect Zeiss M68 accessories to a Pentax OTA using an Ultrashort 2-inch clamp.

For Pentax OTA owners needing M68 fit

The unit suits users with a Pentax M84-threaded OTA who want to attach Zeiss M68-threaded components. It is not for telescopes that lack M84 threads, nor for setups that require a different thread standard or clamp style.

Check your OTA thread and clamp length

Before ordering, confirm the Optical Tube Assembly presents an M84 thread and that the intended accessory uses an M68 thread. Verify the 2-inch clamp on your system is the Ultrashort version so the adapter seats correctly.

Highlights

  • Adapts Pentax M84 to Zeiss M68 threads for wider accessory choice
  • Ultrashort 2" clamp gives a compact, vibration-free connection
  • Precision machining keeps optical alignment tight for sharp images
  • Durable construction withstands repeated mounting in the field
  • Simple clamp-on fitting speeds up setup on a Pentax OTA

Specifications

No published specifications for this item yet.

Questions about this item

Does my telescope need a Pentax M84 thread to accept this adapter?

Yes, the adapter connects to a Pentax M84 thread on the optical tube assembly, so that thread must already be present.

Will the Zeiss M68 side of this adapter fit my existing M68 accessories?

The adapter provides a Zeiss M68 thread that matches standard M68 accessories, allowing them to thread directly onto the adapter.

How can I verify the adapter is holding the 2" clamp securely after installation?

Check that the ultrashort 2" clamp grips firmly without play and that the M84 and M68 threads are fully seated with no visible gaps.

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