Shutter-Priority Auto Exposure Mode (S)
This mode lets you choose shutter speeds manually. Use a fast
shutter speed to stop action, or create motion effects by choos-
ing slower shutter speeds. The F4's microcomputer automati-
cally selects the correct aperture to match the selected shutter
speed.
This mode is available with lenses having a built-in CPU such
as AF Nikkors and the 500mm f/4 P.