View Single Post
  #3  
Old 30-07-2010, 06:10 PM
torana68's Avatar
torana68 (Roger)
Registered User

torana68 is offline
 
Join Date: Jul 2008
Location: ACT/NSW
Posts: 786
Google is your friend : http://astronomyonline.org/Science/T...nification.asp

or if you mean max per inch of apperture its about 5ox give or take a bit
Reply With Quote