Sigma C21EN0291 Digital Camera User Manual


 
A
APERTURE PRIORITY AE
After you set the aperture value you desire, the camera will determine the
appropriate shutter speed. If you select smaller apertures, depth of field will be
greater. The larger apertures tend to blur the background, as depth of field will
be shallower.
1
Set the “D”-Dial to “Drive–Area” (P. 1 4).
2
Set the “Mode” –Selector to
A
position
3
Press the shutter button “Half-Way” to verify
the focus, and select the desired aperture
value by turning the “C” –Dial.
4
Verify the setting in the viewfinder.
If the appropriate shutter speed is out of the
range of suitable combinations due to the
subject being too bright or too dark, the
shutter speed indicator will blink. If the
subject is too bright, set the aperture value
to a smaller one (larger F-number), or if the
subject is too dark, set the aperture value to
a larger one (smaller F-number) until the
indicator stops blinking.
CAUTION!!
· The range of available slow shutter speeds varies depending on the ISO setting
(P.52). At ISO 100, shutters speeds up to 15 sec. can be used. At ISO 200 and
400, shutter speeds up to 1 sec. can be used.
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