Not that I needed it, but could not pass up an F100 body. I tried my Sigma EX Aspherical 28-70mm on but it doesn't like it. Too bad as I have that lens as well as a 24mm and 70-200mm that work fine on my N90s. I have a Nikon G AF 28-80 which works fine, but I'm not particularly fond of the G lenses. Any insights or experience with the F100 and compatible lens options would be appreciated. Off to do some searching.