What was that formula again
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Starforce2
- Posts: 794
- Joined: Fri Jun 04, 2004 12:14 am
- Location: Oakdale
What was that formula again
for maginifcation power?
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ashutoshl
- Posts: 205
- Joined: Mon Mar 07, 2005 3:38 pm
- Location: Saint Louis Park, MN
- Contact:
Magnification = Focal length of the objective / Focal length of the eyepice.
A few related useful formulae ---
Exit pupil = Diameter of objective / Magnification
Magnification when using a barlow lens
= ( Focal length of the objective x Barlow magnification factor ) / Focal length of the eye-piece
Actual Field of view = Apprant field of view of eyepiece / Magnification
A few related useful formulae ---
Exit pupil = Diameter of objective / Magnification
Magnification when using a barlow lens
= ( Focal length of the objective x Barlow magnification factor ) / Focal length of the eye-piece
Actual Field of view = Apprant field of view of eyepiece / Magnification
--- Ashutosh Lotlikar
4" f/13 refractor
80mm f/7.5 ED refractor
Completed a 6" f/5 mirror
Currently working on a 12" f/5 Dob and 10" f/8 scope
4" f/13 refractor
80mm f/7.5 ED refractor
Completed a 6" f/5 mirror
Currently working on a 12" f/5 Dob and 10" f/8 scope