What is the primary purpose of the Baader M68/S68 Steel Change Ring?
This ring's primary purpose is to create a rigid, non-flexing mechanical connection between two different standards: the Baader M68 threaded system and the Zeiss S68 dovetail system. It allows you to securely mount Baader accessories onto telescopes or focusers that use the Zeiss standard.
Why is a threaded connection from this Baader ring better than a standard 2" adapter?
A standard 2" adapter relies on set screws or a compression ring, which can allow for microscopic tilt, especially with heavy equipment. The Baader M68/S68 ring creates a direct threaded connection, which is far more rigid and completely eliminates the possibility of tilt or flexure, ensuring your camera sensor remains perfectly perpendicular to the optical path.
Which telescope systems is the Baader M68/S68 ring designed for?
This ring is specifically designed for telescopes and focusers that use the Zeiss S68 dovetail system. It allows users of these systems to access the wide range of adapters, extension tubes, and accessories within the Baader M68 ecosystem.
Is this Baader change ring all I need to connect my camera to a Zeiss focuser?
No, this ring is only one component. It adapts the Zeiss S68 dovetail to the Baader M68 thread. You will need additional M68 adapters and extension tubes from the Baader system to achieve the correct spacing and final connection for your specific camera.
How does the Baader M68/S68 ring prevent flexure when imaging faint nebulae like the Horsehead Nebula (B33)?
Imaging a faint object like the Horsehead Nebula (B33) requires long exposures where any mechanical shift can blur fine details. The Baader M68/S68 ring's all-steel construction and threaded interface create a single solid unit from the focuser to the camera, preventing the gradual sag or tilt that can occur with less secure connections during a long imaging session.
If I'm building a solar imaging setup with a Telecentric System on a Zeiss refractor, why is this M68/S68 ring essential?
Telecentric systems are often long and heavy, creating significant leverage on the focuser. For high-resolution solar imaging, maintaining perfect optical alignment is critical. The Baader M68/S68 ring provides the necessary rigid, threaded foundation to hold the telecentric system and H-alpha filter securely, ensuring there is no tilt that could degrade the image or move the sun out of the filter's sweet spot.
