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Controlling Exposure
April 28, 2004 7-11
Aperture Priority Auto
Exposure Mode
In Aperture Priority AE mode, you control the depth of field by varying the
aperture. After you set the aperture, the camera determines the appropriate
shutter speed. When you select smaller apertures (larger f-numbers), the
depth of field is greater, which is desirable for landscape photography. A
larger aperture has a smaller depth of field, tending to blur the
background. This would be appropriate for portrait photography.
1. Rotate the D-Dial to the desired setting in the Drive area.
2. Set the Mode Selector lever to A.
3. Lightly press the Shutter button to verify the focus, and select the
desired aperture value by rotating the C-Dial.
4. Verify the setting in the viewfinder.
If the appropriate shutter speed is out of the range due to the subject
being too bright or too dark, the shutter speed indicator blinks. If the
subject is too bright, set the aperture value to a smaller one (larger
f-number). If the subject is too dark, set the aperture value to a larger
one (smaller f-number) until the indicator stops blinking. You may
also adjust the ISO setting, which causes the exposure value to
change.