Thread: f30 mirror
View Single Post
  #7  
Old 10-02-2006, 10:20 PM
mickoking's Avatar
mickoking
Vagabond

mickoking is offline 		 
Join Date: Sep 2005
Location: China
Posts: 1,477
f10-f12 would be a more practical focal ratio, an Apo Reflector
Reply With Quote