Canon EOS-1D, Instructions Manual

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Aperture-Priority AE
In this mode, you set the desired aperture and the camera sets the shutter speed automati-
cally to suit the subject brightness.
The larger or brighter the aperture (lower f/number) the more blurred the background will
become. This effect is ideal for portraits. The smaller or darker the aperture (higher f/number),
the clearer the focus will be for both near and far objects (wider depth of field).
∗
Av is an abbreviation for Aperture value.
With a large aperture With a small aperture
While pressing the < > button, turn
the < > dial until < > appears on
the LCD panel. Then release the < >
button.
1
Turn the < > dial to set the desired
aperture.
2
Press the shutter button halfway and
focus the subject.
s
The shutter speed and aperture will be displayed.
3
Take the picture.
•
As long as the shutter speed is not blinking, a
standard exposure will be obtained.
•
If the shutter speed is slower than the reciprocal of
the lens focal length (i.e. 1/200 for a 200mm lens),
camera shake may cause a blurred picture.
4