View Single Post
  #21  
Old 22-05-2015, 07:02 PM
lineout
Registered User

lineout is offline
 
Join Date: Jan 2007
Location: Sydney
Posts: 193
Quote:
Originally Posted by raymo View Post
I can't argue with most of your reasoning re the 80mm versus the 100mm, but some points to consider are that the limiting magnitudes are
most certainly not almost identical; compare the view of a starfield through an 8" and then a 10", the difference is quite large. A 12.2
star is nearly twice as bright as a 12.7 one. Also, the 100mm has markedly better resolution. If you can move/and/or store that chunky great mount, I would have thought the difference in length of the two scopes would be insignificant. You might also get frustrated before too long with the lack of focal length for smaller objects.
raymo
Appreciate the advice thank you. I'll stick with the 80ED for now and see how it goes.

If I don't like it I can repurpose it as a guide scope.

Rene
Reply With Quote