[Tamtarn]

Hi Paul

I agree moving the mirror up is not a job I would look forward to.

Eyepiece projection works well as you can confirm.

Hand held afocal can be done but results vary.

Our 12" Dob won't come to focus with the camera unless we fit a Low Profile Focuser, because it has a 1500mm focal length.
Your 10" Dob has the same problem as it has a 1250mm focal length.

Roof's scope has a 1000mm focal length with a rack and pinion focuser and that is why it will come to focus with a low profile adaptor.

I first used a low profile adaptor for imaging and now use a low profile focuser and they both work on a 1000mm scope.
The low profile focuser is a 10:1 and is great , but I don't think roof would want to go down that path just yet.

David