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g: Aperture-Priority Auto
In aperture-priority auto, you choose the aperture while the camera
automatically selects the shutter speed that will produce the
optimal exposure.
To take photographs in aperture-priority auto:
1 Select exposure
mode g.
Press the I button
and rotate the main
command dial until g is
displayed in the
viewfinder and control
panel.
2 Choose an aperture.
Rotate the sub-
command dial while
the exposure meters
are on to choose the
desired aperture from
values between the
minimum and maximum for the lens.
Small apertures (high f-
numbers) increase depth of field (see page 105), bringing both
foreground and background into focus.
Large apertures (low
f-numbers) soften background details in portraits or other
compositions that emphasize the main subject.
Small aperture (f/36) Large aperture (f/2.8)
I button
Main command dial
Sub-command dial