ratio of the diameter of the exit pupil devided by the diameter of the entrance pupil
For symmetrical lenses, for example a double Gauss design, the pupil magnification is close to 1.
see also:
working F-number
Numerical Aperture
ratio of the diameter of the exit pupil devided by the diameter of the entrance pupil
For symmetrical lenses, for example a double Gauss design, the pupil magnification is close to 1.
see also:
working F-number
Numerical Aperture