Ae Lock - Canon EOS 1D Mark III Instruction Manual

A AE Lock
Use AE lock when the area of focus is to be different from the exposure
metering area or when you want to take multiple shots at the same exposure
setting. Press the <A> button to lock the exposure, then recompose and take
the shot. This is called AE lock. It is effective for backlit subjects.
AE Lock Effects
Metering mode
q Evaluative
Metering*
w Partial Metering
r Spot Metering
e Center-weighted
Average Metering
* When the lens' focus mode switch is set to <g>, AE lock is applied at the center AF point.
Focus the subject.
1
Press the shutter button halfway.
The exposure setting will be displayed.
Press the <w> button.
2
The <w> icon will light in the
viewfinder and the exposure setting
will be locked (AE lock).
Each time you press the <A> button,
it locks the current exposure setting.
Recompose and take the picture.
3
The exposure level indicator will show
the AE lock exposure level and the
current exposure level in real-time.
If you want to maintain the AE lock
while taking more shots, hold down
the <A> button and press the shutter
button to take another shot.
AF Point Selection Method
Automatic selection
AE lock is applied at the AF
point that achieved focus.
AE lock is applied at the center AF point.
(9)
Manual selection
AE lock is applied at the
selected AF point.
101