Nikon F4S Film Camera User Manual


 
Diopter Adjustment Knob
This knob enables near- or farsighted photographers to adjust
eyepiece diopter within a continuous range of from
-3
to
+1.
Pu
ll the knob and rotate
it
to either direction until focused
image appears sharp, then push back.
For
diopters beyond
this range, Nikon eyepiece correction lenses for
F3HP
are
recommended.
Eyepiece Shutter Lever
During self-timer operation,
in
automatic exposure modes, use
the eyepiece shutter which prevents light from entering the
eyepiece and adversely affecting the automatic exposure meter
reading. Just turn the lever to the left to close the shutter. The
eyepiece shutter
is
painted
red
to
provide a visual reminder
that it's
in
use.
77