Nikon F3 - Eyepiece Shutter Lever; Accessory Shoe

Eyepiece shutter lever @
When it's impossible to keep your eye at the viewfinder
(such
as when utilizing the self-timer), you should use the
eyepiece shutter. This shutter prevents stray light from
entering the eyepiece and adversely affecting the auto-
matic
exposure meter reading . Just push the lever to the
left to close the shutter. As a visual reminder that it's in
use, the blind is painted red.
Accessory shoe @
Located at the base of the rewind knob, the accessory
shoe allows direct mounting of the Nikon SB-12 Speed-
light. Three electrical contacts @ provide for synchro-
nization of
the flash unit, automatic through - the-lens flash
output control, and ready-light indication in the camera's
viewfinder (via an LED), plus auto switching to the pro-
per synchronization speed of 1/80 sec. Two flash coupling
adapters are available allowing eith er IS0- or Nikon F2-
type direct-mounting electronic flash units to be attached.
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