Nikon Camera F3AF - Manual (Page 71)

Viewfinder illuminator ®
A convenient built-in viewfinder illuminator lets you see the LCD
exposure information and the aperture, even in dim light. To turn
on the illuminator, push the red illuminator button ® located at
the base of the viewfinder just in front of the shutter speed dial
®. Please remember that the illuminator only lights up when
the camera’s exposure meter is switched on, but turns off as
soon as you remove your finger from the button.
Notes:
1) If you plan to use the illuminator for extended periods, take along a
spare set of fresh batteries lor the camera body, because the illumi­
nator consumes a lot of power.
2) At low temperatures or with nearly exhausted batteries, using the
illuminator might temporarily lower the voltage, causing the LCD to
disappear. If the LCD appears again when the illuminator is o f f , you
can release the shutter without replacing the batteries.
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