79 s: shutter-priority auto, Changing from manual to shutter-priority auto, 4—long exp. nr ( 149) – Nikon D100 User Manual
Page 91
Taking Photographs—Exposur
e
Controlling How the Camera Sets Exposure
79
S: Shutter-Priority Auto
In shutter-priority auto, you choose the shutter speed while the camera auto-
matically selects the aperture that will produce the optimal exposure. Shutter
speed can be set to values between 30 s and
1
/
4,000
s. Use slow shutter speeds
to suggest motion by blurring moving objects, high shutter speeds to “freeze”
motion. Shutter-priority auto is only available with CPU lenses.
Changing from Manual to Shutter-Priority Auto
If you select a shutter speed of
in manual exposure mode and then turn the
function dial to S (shutter-priority auto) without changing the shutter speed, the
indicator in the shutter-speed display will flash and the shutter can not be released.
Rotate the main command dial to select a different shutter speed before shooting.
4—Long Exp. NR (
149)
To reduce noise at shutter speeds of about
1
/
2
s or slower, select ON for Custom Setting 4.
Note that this will increase the time needed to process photographs before they are
saved to the memory card.