Reference Guide (PDF Edition)

Table Of Contents
The
A
(
g
) button
144
The
A
(
g
) button
Locks focus and exposure at the same time.
Exposure lock
Exposur
e lock can be used to recompose shots after metering a
subject that will not be in the selected focus area in the nal
composition.
Exposure lock is particularly eective with spot and center-weighted
metering.
Focus lock
U
se focus lock to lock focus on the current subject when AF-C is
selected for focus mode.
When using focus lock, choose an AF-area mode other than [Auto-
area AF], [Auto-area AF (people)], or [Auto-area AF (animals)].
Locking focus and exposure
1 P
osition the subject in the selected focus point and press the
shutter-release button halfway to set focus and exposure.