I have a 290MM and a 290MC and i am looking to get CS mount lenses for them to use in a project. What is the focal length on the 290 so I can look for lenses which would give me the best results? Thanks
If you want a best result, you could look at the back focus of the CS lenses rather than the camera. And we have T2 To CS or C lens adapter which you could refer to(https://astronomy-imaging-camera.com/product/m42-to-cs-adapter).