78
Z
A
Metered Area
In spot metering, exposure will be locked at the value metered in a
4-mm (0.16 in.) circle centered on the selected focus point. In center-
weighted metering, exposure will be locked at the value metered in a
12-mm circle in the center of the viewfinder.
A
Adjusting Shutter Speed and Aperture
While exposure lock is in effect, the following settings can be adjusted
without altering the metered value for exposure:
Exposure
mode
Setting
P
Shutter speed and aperture (flexible program;
S
Shutter speed
A
Aperture
The new values can be confirmed in the viewfinder and control panel.
Note that metering can not be changed while exposure lock is in effect.
A
See Also
If
On
is selected for Custom Setting c1 (
Shutter-release button AE-L
,
251), exposure will lock when the shutter-release button is pressed
halfway. For information on changing the role of the
A
AE-L/AF-L
button,
see Custom Setting f6 (
Assign AE-L/AF-L button
,