Nikon D4S - Manual (Page 150)

128
Z
f: Shutter-Priority Auto
In shutter-priority auto, you choose the shutter speed while the
camera automatically selects the aperture that will produce the
optimal exposure.
To choose a shutter speed,
rotate the main command
dial while the exposure
meters are on. Shutter speed
can be set to “p” or to
values between 30 s and
1 /
8000
s. Shutter speed can be
locked at the selected setting ( 0 134).
Main command dial