Nikon F4 Instruction Manual page 61

4. While lightly pressing shutter release button, press AE-L
button and hold in.
5. Recompose and shoot.
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- While exposure is locked, "EL" appears in the viewfinder.
- In Single Servo AF mode, before releasing shutter, be sure to
refocus by briefly removing your finger from the shutter re-
lease button and lightly pressing again to reactivate au tofo-
cus function .
- Simultaneous use of AF-L (Autofocus Lock) bu tton is recom-
mended. In this case, turn AF-UAE-L simultaneous lock lever
to ( •• ) and press AF-L button.
- This works best with either the Center-Weighted or Spot
Metering system; with Matrix Metering, exposure compensa-
tion is automatic.
61