Nikon D80 - Manual (Page 65)

53 Reference: P, S, A, and M Modes / Exposure
Autoexposure Lock Controls used: AE-L/AF-L button
Use auto exposure lock to recompose photographs after metering exposure:
1 Select mode P, S, or A and choose center-weighted or spot metering (exposure lock has
no eff ect in mode M, while and Digital Vari-Program modes are not recommended as
center-weighted and spot metering are not available in these modes). If using center-
weighted metering, select the center focus area with the multi selector ( 30).
2
Position the subject in the selected focus area and press the
shutter-release button halfway. With the shutter-release but-
ton pressed halfway and the subject positioned in the focus
area, press the AE-L/AF-L button to lock exposure.
While exposure lock is in eff ect, an AE-L indicator will appear in
the viewfi nder.
3
Keeping the AE-L/AF-L button pressed, recompose the photo-
graph and shoot.
Adjusting Shutter Speed and Aperture
While exposure lock is in eff ect, the following settings can be adjusted without altering the metered
value for exposure.
Mode Setting
Programmed auto Shutter speed and aperture (fl exible program; 47)
Shutter-priority auto Shutter speed
Aperture-priority auto Aperture
The new values can be confi rmed in the viewfi nder and control panel. Note that the metering method
can not be changed while exposure lock is in eff ect (changes to metering take eff ect when the lock
is released).
18 — AE-L/AF-L ( 94)
This option controls the behavior of the AE-L/AF-L button.
19 — AE Lock ( 94)
This option controls whether the shutter-release button locks exposure.