Magnification With A Telescope

This calculator will help you calcaulate the magnification of a laser beam by a telescope consisting of two convex lenses

$M'$=$M\sqrt{1+(\frac{\lambda l}{\pi w^2_0}})^2$

$M$=$\frac{F_2}{F_1}$

Laser Wavelength $\lambda$; Focal Length of Lens (input side) $F_1$; Focal Length of Lens (output side) $F_2$; Incident laser wasit radius $W_0$;
Distance between the input waist and the input lens $l$;