Nikon D5200 - Manual (Page 80)

63
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.
Position the subject in the center of the frame
(center-weighted metering) or the selected focus
point (spot metering) and press the shutter-
release button halfway to set focus and meter
exposure. Check that the in-focus indicator (
I)
appears in the viewfinder.
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.
3
Recompose the photograph.
Keeping the A (L) button pressed, recompose
the photograph and shoot.
A
Autoexposure Lock
If On is selected for Custom Setting c1 (Shutter-release
button AE-L;
0 159), 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 f2
(Assign AE-L/AF-L button;
0 166).
Shutter-release
button
A (L) button