Canon EOS-1D X Mark III DSLR Camera (Body Only) - Manual (Page 109)

Av: Aperture-Priority AE
Depth-of-Field Preview
In this mode, you set the desired aperture value and the camera sets the shutter speed
automatically to obtain the standard exposure matching the subject brightness. 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.
* < > stands for Aperture value (aperture opening).
Blurred background
(With a low aperture value: f/5.6)
Sharp foreground and background
(With a high aperture value: f/32)
1.
Set the shooting mode to < >.
Press the < > button and turn the < > or < > dial to
select < >.
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