SYNC
TERMINAL
A separate sync
terminal is
provided on
the
F4.
It
accepts all
standard
PC-type plug-in
sync cords, and
is threaded for use
with a
Nikon
screw-in sync
cord.
Use this terminal to
attach
flash
units which do
not have the
standard ISO
hot
shoe.
VIEWFINDER ILLUMINATOR SWITCH
When
it's dark, use the
viewfinder
illuminator
to
light up
all
viewfinder
information. Turn the
switch on, and
lightly press the
shutter release button
to illuminate the display. The illuminator
automatically switches off as the viewfinder
display
disappears;
it
also momentarily switches off
during
exposure. Although
the
illuminator is automatically
switched off
when the
camera is set
to the L
(lock) position, switch
it
off,
when no
longer needed, to
conserve power.
75