Thread: What is meant by "stopping down a telescope"?
View Single Post
  #9  
Old 19-05-2006, 08:37 PM
asimov's Avatar
asimov (John)
Planet photographer

asimov is offline 		 
Join Date: May 2005
Location: Bundaberg
Posts: 8,819
http://www.iceinspace.com.au/forum/s...=aperture+mask
Reply With Quote