Quote:
Originally Posted by netwolf
Hi All,
I have added my 400D to Stellarium but need some help on how to add my Lenses to it. The main one I want to add is the 18-55mm Lens.
I assume I need to add it as a Telescope. But I am not sure what the Diametere Parameter is. And for the FL it does not seem to accept a Range so I assume have to fix it to somwhere between 18 and 55.
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Invert the formula for F ratio:
F ratio = focal length / aperture
so:
aperture = focal length / F ratio
You could put multiple entries for various zoomed lengths.