Exposure Lock (Ae Lock) - Canon EOS-1D X Mark III Advanced User's Manual

Exposure Lock (AE Lock)

AE Lock Effects
You can lock the exposure when you want to set the focus and exposure separately or when
you will take multiple shots at the same exposure setting. Press the <
exposure, then recompose and take the picture. This is called AE lock. It is effective for
shooting backlit subjects, etc.
1.
Focus on the subject.
2.
Press the <
Press the shutter button halfway.
The exposure value will be displayed.
> button (
A < > icon is displayed in the viewfinder, indicating that the
exposure is locked (AE lock).
Each time you press the <
locked.
).
> button, the current exposure setting is
234
> button to lock the