106
Z
Autoexposure Lock
Use autoexposure lock to recompose photographs after metering exposure:
1
Set metering to
Z
or
b
(
0
105).
Choose
Z
to assign the greatest weight to the center of frame, or
b
to set
exposure for a 3.5-mm circle centered on the active focus point.
a
will not
produce the desired results.
2
Lock exposure.
Position the subject in the selected focus point
and press the shutter-release button halfway.
With the shutter-release button pressed halfway
and the subject positioned in the focus point,
press the
AE-L/AF-L
button to lock focus and
exposure (if you are using autofocus, confirm
that the
I
in-focus indicator appears in the
viewfinder).
While exposure lock is in effect, an
AE-L
indicator
will appear in the viewfinder.
3
Recompose the photograph.
Keeping the
AE-L/AF-L
button pressed, recompose
the photograph and shoot.
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:
Mode
Setting
P
Shutter speed and aperture (flexible program;
0
68)
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
,
0
213), exposure will
lock when the shutter-release button is pressed halfway. For information on changing the
role of the
AE-L/AF-L
button, see Custom Setting f5 (
Assign AE-L/AF-L button
,
0
232).
Shutter-release button
AE-L/AF-L
button
Summary of Contents for D7000
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