Nikon D3S - Manual (Page 146)

120
Z
e: Programmed Auto
In this mode, the camera automatically adjusts shutter speed and
aperture according to a built-in program to ensure optimal
exposure in most situations. This mode is recommended for
snapshots and other situations in which you want to leave the
camera in charge of shutter speed and aperture. To take
photographs in programmed auto:
1
Select exposure
mode e.
Press the I button
and rotate the main
command dial until e is
displayed in the
viewfinder and top
control panel.
2
Frame a photograph, focus, and shoot.
Shutter speed: 1 /
320
s; aperture: f/9
I button
Main command dial