Telescope Focal Ratio Calculator
Estimate telescope focal ratio calculator using a quick astronomy model for planning and learning.
Magnification
40.0 x
Focal Ratio
f/5.00
Exit Pupil
5.00 mm
Resolving Power
0.58 arcsec
Light Gathering vs Eye
816 x
Estimate telescope focal ratio calculator using a quick astronomy model for planning and learning.
Magnification
40.0 x
Focal Ratio
f/5.00
Exit Pupil
5.00 mm
Resolving Power
0.58 arcsec
Light Gathering vs Eye
816 x