Nikon N4004s Instruction Manual page 34

4. Small dark subjects against a bright background
A subject significantly smaller than anyone of the multi-sensor
areas may not be recognized and integrated into the automatic
exposure evaluation . For such subjects, we recommend you
use either the AEL or manual exposure control for center-
weighted metering .
34
Centerweighted metering (w/AEL button)
Main subject is correctly exposed. For details,
see page 36.
Centerweighted metering (w/o AEL button)