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88
ADVANCED PHOTOGRAPHY—EXPOSURE MODE
Exposure Mode (continued)
Aperture-Priority Auto
In aperture-priority auto, the user sets the aperture, while the camera automatically
adjusts shutter speed to produce the optimal exposure. Small aper tures (high f/-
numbers) can be used to increase depth of field, bringing both the main subject and
the background into focus. Large apertures (low f/-numbers) soften background
details and allow more light into the camera, increasing the range of the flash and
making photographs less susceptible to blurring.
To take photographs in aperture-priority auto:
1
Pressing the MODE button, rotate the main command
dial until
is displayed in the control panel on top of
the camera.
Lens Aperture Ring
If the lens aper ture ring has not been set to the minimum aperture, the viewfinder and control
panel on top of the camera will show a blinking , and the shutter release will be disabled.
This does not apply in the case of type G lenses, which do not have an aper ture ring.
Non-CPU Lenses
If aperture-priority auto is selected when a non-CPU lens is attached, the aper ture display in
the viewfinder and the control panel on top of the camera will show to indicate that
aperture must be set manually using the lens aperture ring.
3
Frame a photograph and shoot.
2
Rotate the sub-command dial to choose an aperture
between the minimum and maximum values for the
lens.
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