f/Calc is a utility to calculate lens formulae for photographers so you can
focus on the artistic bits rather than on the mathematics behind it all. f/Calc
can do "f" number arithmetic, and can calculate depth of field, hyperfocal
distance, the field of view of a lens, the angle of view of a lens,
magnification, and how the focal length of the lens on the camera changes the
way the spot metering function works. In addition to the Unix/Linux Tcl/Tk
version, there are native Windows, Palm OS, and Macintosh versions as well.
