F: Aperture-Priority Ae - Canon EOS-1DX Instruction Manual

f: Aperture-Priority AE

In this mode, you set the desired aperture and the camera sets the shutter
speed automatically to obtain the standard exposure suiting the subject
brightness. This is called aperture-priority AE. A higher f/number (smaller
aperture hole) will make more of the foreground and background fall within
acceptable focus. On the other hand, a lower f/number (larger aperture hole)
will make less of the foreground and background fall within acceptable focus.
* <f> stands for Aperture value (aperture opening).
Blurred background
(With a low aperture f/number: f/5.6)
Sharp foreground and background
(With a high aperture f/number: f/32)
1 Set the shooting mode to <f>.
Press the <W> button and turn
the <6> or <5> dial to select
<f>.
2
Set the desired aperture.
While looking at the top LCD panel,
turn the <6> dial.
3
Focus the subject.
Press the shutter button halfway.
The shutter speed is set
automatically.
4 Check the viewfinder display and shoot.
As long as the shutter speed is not
blinking, a standard exposure will be
obtained.
175