View Single Post
  #1 (permalink)  
Old 05-March-2008, 11:05 PM
spaceboy0 spaceboy0 is offline
Established Member
 
Join Date: Dec 2007
Location: Vancouver
Posts: 208
Default Why can I not get high magnification photos through my 8 inch Dobsonian?

I have an 8 inch Dobsonian and I'm taking shots of Saturn through my 35 mm film SLR camera with adapter.

The highest mag I can use with the camera is using a 25 mm with a 2 X magnifier (that extends the light path), giving the equivalent of looking through a 12.5 mm.

This gives about 100 power which is still small photographically.

I'd like to use higher powers to highlight Saturn's rings but I don't have enough focuser travel in the inwards direction. Using higher power eyepieces even with the 2 X magnifier, I can't get into focus cause the focuser doesn't go down far enough.

Is the solution a more low profile focuser? Yet the focuser on it now seems pretty low profile. Is there a solution?
Reply With Quote