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Exposure
Changing Shooting Settings
Autoexposure Lock
If the subject is not in the metered area when center-weighted or spot metering is used,
exposure will be based on lighting conditions in the background and the main subject
may not be correctly exposed. This can be prevented by using autoexposure lock.
Available in a, b, and c modes.
1 Select mode a, b, or c and choose q (center-weighted) or r (spot) for
Metering (exposure lock has no effect in mode d).
p (matrix) is not recommended as AE lock may not be sufficiently effective.
2 Position the subject in the selected focus point. Keeping
the shutter-release button pressed halfway and the
subject positioned in the selected focus point, press
H to lock exposure.
Exposure is locked. While H is pressed, exposure is locked at the
value metered in the selected focus point when r (spot) is
selected, or at the value metered in the center area when q (center-weighted) is selected.
Recomposing the frame does not affect the exposure.
While exposure lock is in effect, an E indicator will appear in the
viewfinder. When autofocus is used, focus will be also locked.
Confirm that the in-focus indicator (A) appears in the viewfinder
when the shutter-release button is pressed.
3 Keeping H pressed, recompose the
photograph and shoot.
D Adjusting Shutter Speed and Aperture
While exposure lock is in effect, the following settings can be adjusted by rotating the command dial
without altering the metered value for exposure.
Note that the metering method cannot be changed while exposure lock is in effect.
F 12—AE-L/AF-L (A 113)
This option controls the behavior of H.
F 13—AE Lock (A 113)
This option controls whether the shutter-release button locks exposure.
Programmed auto Shutter speed and aperture (flexible program; A 41)
Shutter-priority auto Shutter speed
Aperture-priority auto Aperture