Nikon Camera N90 - Manual (Page 27)

5 Lightly press shutter release button to start autofocus
operation and switch exposure meter on.
Confirm that the in-focus indicator • for a stationary subject or
for a moving subject appears on the viewfinder's LCD
readout. Confirm, too, that the shutter speed and aperture
indications are shown. Exposure readouts also appear in the
camera’s external LCD panel.
In the Single Servo autofocus mode with Focus-Priority, the
shutter cannot be released until # or appears, indicating
that the subject is in focus; the focus is then subsequently
locked. If the distance between you and the subject changes,
remove your finger from the shutter release button, then lightly
press it again to refocus.
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