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Controlling Exposure
More on Photography
S: Shutter-Priority Auto
In shutter-priority auto, the user selects the shutter speed by rotating the
command dial; aperture is set automatically by the camera in response to
lighting conditions. Shutter speed can be set to values between 8 s and
1
/
4000 s
in increments equivalent to 1 EV (one step).
If the selected shutter speed would result in the picture being under- or over-
exposed, the shutter speed display in the monitor will fl ash when the shut-
ter-release button is pressed halfway. Choose another shutter speed and try
again. At slow shutter speeds, the shutter-speed indicator in the monitor will
turn yellow to show that “noise” in the form of randomly-spaced, brightly-
colored pixels may appear in the fi nal photograph. We recommend that you
either choose a faster shutter speed or use noise reduction (
111).
Ultra HS
When Ultra HS is selected in the Continuous menu ( 63), the frame advance rate
is fi xed at thirty frames per second, with the result that shutter speed can not be set
to a value slower than
1
/
30 s.
Faster Shutter Speeds
When a shutter speed of
1
/
4000 s is selected in shutter-priority auto, aperture is restricted
to values between f/4.4 and f/7.9 when the camera is zoomed all the way out, or to
f/7.3 when the camera is zoomed all the way in. If you are unable to achieve optimum
exposure in shutter-priority auto, choose aperture-priority auto (exposure mode A),
zoom the camera all the way out, and select the smallest aperture (largest f/-number).
Depending on the amount of light available, it may be possible to achieve optimum
exposure at shutter speeds as fast as
1
/
4000 s (
1
/
8000 s in Ultra HS mode).
Shutter speed displayed in monitor.
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Select mode S.