Focal Reducers for Visual?
I should know this but I don't. Can focal reducers be used - successfuly -for visual obs? What I mean by this is; what kind of image degredation if any) can you expect and what effect (if any) will it have on eyepieces.
Sometimes I'd like a bit larger FoV than I get at f7.5 and Tak sells a reducer/flattener (f6.3) for the TOA/TSA series that gets excellent reports for AP but I can't find any reference for visual.
Thanks,
Peter
|