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Baader Planetarium Adapter S65a to M68a
The Baader Planetarium Adapter S65a to M68a provides a critical link for attaching specific Baader DSLR T-Rings (#24580-35 and #24580-36) to telescopes and accessories with Zeiss M68 threads. This 6x6 T-Adapter is specifically designed to integrate T-rings featuring a 2-filter compartment, creating a robust imaging train for your DSLR camera.
Connecting Baader T-Rings to the Zeiss M68 System
This adapter creates a direct, secure connection between the Baader 6x6 T-Adapter system and the Zeiss M68 thread standard found on high-end focusers and optical correctors. It allows you to mount Baader DSLR T-Rings (#24580-35/-36) without flexure, preserving the critical optical alignment of your imaging train.
Enabling a 2-Filter DSLR Imaging Train
The primary function of the S65a to M68a adapter is to integrate Baader T-rings that feature a built-in 2-filter compartment. Baader names these T-rings for their 2-filter compartment.
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V-Groove Design: Baader describes the camera side as a V-mount dovetail for the 6x6 T-adapter, which takes the T-ring assembly.
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What is the main purpose of the Baader Adapter S65a to M68a?
This adapter's sole purpose is to connect Baader's specialized DSLR T-Rings (#24580-35 and #24580-36), which feature a 2-filter compartment, to a telescope or focuser that uses the large Zeiss M68 thread standard. It bridges this specific gap in the Baader accessory system.
Which T-rings are compatible with the Adapter S65a to M68a?
This adapter is specifically designed for the Baader DSLR T-Rings with part numbers #24580-35 and #24580-36. It is not intended for use with standard T-rings from other manufacturers.
Can I use the Adapter S65a to M68a on a refractor with a 3" focuser?
Yes, if your 3" focuser terminates in a female Zeiss M68 x 1mm thread. This is a common standard on many high-end focusers and field flatteners, and this adapter will thread directly into it, allowing you to attach the Baader filter-compartment T-ring system.
What is the "V-Groove" on the Adapter S65a to M68a for?
Baader describes the camera side of this adapter as a V-mount dovetail for its 6x6 T-adapter system; the T-ring assembly attaches there. Baader does not describe the locking hardware.
Does the Adapter S65a to M68a hold filters itself?
No, the adapter itself does not have a filter compartment. Its function is to enable the connection of specific Baader T-Rings (#24580-35 and #24580-36) which contain the 2-filter holder. The adapter is purely a mechanical connector.
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| Telescope Side Connection |
M68a (Male M68 x 1mm Thread) |
| Camera Side Connection |
S65a (S65 V-mount dovetail for the 6x6 T-adapter) |
| Primary Compatibility |
Baader DSLR T-Rings #24580-35 & #24580-36 |
| Mounting Feature |
V-Groove |
| Net weight (kg) |
0.02 |
| Compatible Brands |
Baader Planetarium, Zeiss |
| Inner Diameter / Clear Aperture (mm) |
59 |
| Outer Diameter |
72 |
| Type of Adapter |
Reducing Adapter |
| Optical length (mm) |
10 |
| Outer Connection (lens sided) |
M68 x 1 |
| Adaptable to |
Zeiss M68 System |
| Adapters Family |
M68 System |
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Baader Planetarium Warranty
