Nikon N4004s - Manual (Page 35)

EXPOSURE METERING SYSTEM
Advanced Automatic Exposure Control with
Nikon’s Exciusive Multi-Sensor Metering System
The automatic exposure control system of the N4004s uses
Nikon’s exclusive new light metering system featuring a multi
sensor that ensures correct automatic operation in program,
shutter-priority and aperture-priority modes. Light is evaluated
from three separate areas of the picture: left, right and center.
The camera’s microcomputer then classifies the light pattern
into one of several groups and sets the correct exposure.
For scenes with low lighting (below EV10), the ready-light in the
viewfinder blinks to recommend you use the built-in flash or an
accessory speedlight. If you accept this recommendation and
decide to use the flash, the flash will be controlled by the
camera’s precise TTL (Through The Lens) measuring system.
You may also ignore the recommendation and choose to take
the picture using available light.
The ready-light also blinks to recommend flash use for bright
scenes (EV10 or higher at ISO 100) where the sun is behind the
subject (subject is silhouetted and at least approx. 1.5 EV darker
than the background). When the flash is used under these con­
ditions, we call it "balanced fill-flash.” Automatic balanced fill-
flash can be used at your discretion, even when the viewfinder
ready-light does not blink. You may also ignore the blinking flash
ready-light, and take an available-light picture.
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