Thread: FOV calculations ?
View Single Post
  #4  
Old 24-02-2012, 08:34 PM
Jan Masu
Registered User

Jan Masu is offline 		 
Join Date: Jan 2012
Location: Melbourne
Posts: 19
fov and afov
Hi David,

If you have a 12mm ep with 65 fov and on a scope with 600mm focal,
then,

Mag= 600/12 or 50x
afov = fov/mag or 65/50 or 1.3 deg

The higher the mag, the lower will be the afov.

hope this help
Reply With Quote