View Single Post
  #2  
Old 14-07-2015, 08:27 PM
AlexN's Avatar
AlexN
Widefield wuss

AlexN is offline
 
Join Date: Mar 2008
Location: Caboolture, Australia
Posts: 6,994
That's very cool.

Did you build your 18" with visual astronomy in mind or is it purely an imaging scope? Just curious because an f/3.3 mirror is quite a lot of work to figure compared to an f/5 and for planetary imaging I would have thought the longer the better. Obviously that's all dependent on if your mount could handle an 18" f/5.
Reply With Quote