] The Shooting Menu; Autoexposure Lock - Nikon D3000 User Manual

Autoexposure Lock
Use autoexposure lock to recompose photographs after metering exposure:
Select [] Center-weighted or [] Spot metering
(_ 74).
F_Matrix metering 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.
While exposure lock is in effect, an AE-I.indicator will
appear in the viewfinder.
Shutter-release
button
AE-L/AF-Lbutton
3
Recompose the photograph.
Keeping the AE-L/AF-L button pressed, recompose the photograph and shoot.
[] The Shooting Menu
Metering can also be adjusted using the Metering option in the
shooting menu (_ 119).
[] Adjusting Shutter Speed and Aperture
While exposure lock is in effect, the following settings can be
adjusted without altering the metered value for exposure:
_M0de Setting
Programmed auto Shutter speed and aperture (flexible program; _ 68)
Shutter-priority auto Shutter speed
Aperture-priority auto Aperture
The metering method itself can not be changed while exposure lock is in effect.
[] See Also
If On is selected for Buttons > AE lock in the setup menu (_ 135), exposure will lock when
the shutter-release button is pressed halfway. For information on changing the role of the
AE-I./AF-L button, see Buttons > AE-L/AF-L
75