Nikon D500 - Manual (Page 167)

141
Use autoexposure lock to recompose photographs after using
center-weighted metering and spot metering (
0 128) to meter
exposure.
1
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 center of the
sub-selector to lock 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.
2
Recompose the
photograph.
Keeping the center of the
sub-selector pressed,
recompose the
photograph and shoot.
Autoexposure (AE) Lock
Shutter-release button
Sub-selector