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116 P, S, A, and M Modes
Autoexposure Lock
Use autoexposure lock to recompose photographs after using
M (Center-weighted metering) and N (Spot metering) to
meter exposure; note that autoexposure lock is not available in
i or j mode.
1 Meter exposure.
Press the shutter-release
button halfway.
2 Lock exposure.
With the shutter-release button
pressed halfway (q) and the subject
positioned in the focus point, press
the A (L) button (w) to lock
exposure.
While exposure lock is in effect, an AE-L
indicator will appear in the viewfinder.
Shutter-release butto
n
A (L) button