Nikon D3S User Manual page 152

2
Choose aperture and shutter speed.
While the exposure meters are on, rotate the main command
dial to choose a shutter speed, and the sub-command dial to
set aperture. Shutter speed can be set to "p" or to values
between 30 s and
indefinitely for a long time-exposure (A, 0 128).
Aperture can be set to values between the minimum and
maximum values for the lens. Check exposure in the exposure
indicators, and continue to adjust shutter speed and aperture
until the desired exposure is achieved.
Aperture
Z
Shutter
speed
Shutter speed and aperture can be locked at the selected
setting (0 130, 131).
3
Frame a
photograph,
focus, and
shoot.
126
1
/ s, or the shutter can be held open
8,000
Sub-command dial
Main command dial
Shutter speed:
SHOOT
CUSTOM
SHOOT
CUSTOM
1
/ s;
250
aperture: f/8