View Single Post
  #19  
Old 05-10-2019, 07:02 PM
Lioness (Lina)
Registered User

Lioness is offline
 
Join Date: Apr 2011
Location: Adelaide, Australia
Posts: 10
Quote:
Originally Posted by croweater View Post
Hi Lina, Just in case you don't know divide your eyepiece focal length into your telescope focal length to work out the magnification. In your 2800mm fl edge your 9mm eyepiece will give you 311x. This is pretty high and is only useful/achievable on nights with good seeing. Cheers, Richard.
Oooh thank you, I never knew how to do that before!
Reply With Quote