What lenses are compatible with the Nikon F100 35mm film camera?

And how do you know if a lense is compatible with a camera body?

All Nikkor AF, AF-I and AF-S lenses and including all AI manual focus lenses

Look on page 102 of the user manual.

http://www.butkus.org/chinon/nikon/nikon_f100/nikon_f100.htm

http://www.kenrockwell.com/...y-lens.htm

You know if a lens is compatible because it'll say something like, 'Nikon AF fit.'

The only caveat is that the DX lenses (including most AF-S) for modern DSLRs produce a smaller image.