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.
How does this adapter help image the Orion Nebula (M42) with a DSLR?
When used with the compatible Baader T-ring, the Adapter S65a to M68a lets you create an imaging train that holds two filters simultaneously. For an object like the Orion Nebula (M42), you could load an H-alpha filter and a standard light pollution filter, capturing detailed narrowband data and color data in the same session without ever removing your camera.
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?
The V-Groove is a machined channel on the adapter that provides a secure locking point. When the corresponding T-ring is attached, set screws engage this groove to prevent any unwanted rotation of the camera and filter assembly, ensuring your framing remains fixed throughout an imaging run.
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.
