Canon EOS 20D Instruction Manual
78
In this mode, you set the desired aperture and the camera sets the
shutter speed automatically to suit the subject brightness. This is called
aperture-priority AE. The smaller the aperture (larger f/number), the
wider the depth of field (range of acceptable focus). The larger the
aperture (smaller f/number), the narrower the depth of field.
shutter speed automatically to suit the subject brightness. This is called
aperture-priority AE. The smaller the aperture (larger f/number), the
wider the depth of field (range of acceptable focus). The larger the
aperture (smaller f/number), the narrower the depth of field.
* <f> stands for Aperture value.
1
Set the Mode Dial to <f>.
2
Set the desired aperture value.
¡
While looking at the LCD panel, turn
the <
the <
6> dial.
¡
It can be set in 1/3-stop increments.
3
Focus the subject.
¡
Press the shutter button halfway.
s
The shutter speed is set
automatically.
automatically.
4
Check the viewfinder display and
shoot.
shoot.
¡
As long as the shutter speed is not
blinking, the exposure will be correct.
blinking, the exposure will be correct.
f Aperture-Priority AE
With a large aperture
With a small aperture