214
g
Choose whether the
A
button locks both focus and exposure
(
AE/AF lock
), exposure only (
AE lock only
), or focus only (
AF
lock only
) or can be used to initiate autofocus (
AF-ON
). Expo-
sure lock is described below, focus lock on page 216.
Autoexposure Lock
Exposure lock is used to recompose photographs after metering
exposure. It is most effective when used with center-weighted
or spot metering (
177) to frame off-center subjects that are
much brighter or darker than their surroundings or to optimize
exposure for an object other than your main subject.
1
Meter exposure.
Assign AE/AF-L Button
Position the subject in the center of
the frame and press the shutter-
release button halfway to meter expo-
sure. Check that the focus area is dis-
played in green.
Summary of Contents for 1 v3
Page 1: ...DIGITAL CAMERA Reference Manual En ...
Page 24: ...xxii ...