Canon EOS-1DS Mark III Instruction Manual page 96

Av"
Aperture-Priority AE
In tMs mode, you set the desired aperture and the camera sets the
shutter speed automatically to obtain the correct exposure suiting the
subject brightness. TMs is called apertureopnodty AE.
A Mgher ftnumber (smaller aperture hole) will make more of the
foreground and background fall within acceptable focus. On the other
hand, a lower ftnumber (larger aperture hole) will make less of the
foreground and background fall within acceptable focus.
* < Av > standsfor Aperturevalue (apertureopening).
With a large aperture opening
With a smalJ aperture opening
1 Semect<Av>.
_ Press the <MODE> button and turn
the <_:_/0 > dial to select <Av>.
Set the desired aperture.
_ While looking at the top LCD panel,
turn the <_:_> dial.
,3
Focus the subject.
® Press the shutter button halfway.
_y,, T he shutter speed is set
automatically.
_lmj11111_lmm_,, Check the viewfinder display and
shoot.
® As long as the shutter speed is not
blinking, the exposure will be correct.
96