I finally had a chance to try out the DR with my 12.5" dob last night and was disappointed to find that I do not have enough in-focus in prime OR with projection. Are there any cures for this or do I just give up? I can get focus on my ETX-90 (using eyepiece projection), but the edges of my photos are blurry (not vignetted, blurry). Are all these problems due to the distance to the film plane?
Pat
Pat