NIKKORMAT FT2 - Infrared Photography; Silver-Oxide Batter

I
N FRARE
D
PI-IOTOGRAPFI
Y SILVER-OXIDE
BATTERY
In infrared
photography,
the
plane
of sharpest
focus
is
slightly
more distant
than
the one
produced
by
visible
light
and
seen
by the
naked
eye through
the
viewfinder.
To compensate
for
the
shift in focus,
Nikkor
lenses
have
a red
dot or
line
on the
lens
barrel
near
the color-coded
depth-of-field
index
scale
on
t9p
of
the
lens. After
focusing
the
image
sharply
through
the
viewfinder,
turn
the focusing
iing
to ih.
left
until the
red
dot lin?s
up
with the
prefocused
distance.
For example,
in
the
picture
below the
50mm
f11,.4
lens
has
been
focused
a,t
,infinity
1oo;.
The
focusing
ring_
is turned
slightly
to
the
left
so that
the infinity
mark
appears
in
line
with the red
dot.
When lenses
The
Nikkormat
FT2's
meter
circuit
is
powered
by
a
single
1.5-volt
silver-oxide
battery
located
in
ih"
battery
chamber
on
the
camera
baseplate.
When
the
battery
is
exhausted,
the meter
will
cease
to function
all
at once.
To
replace
the
battery,
unscrew
the
cap
over
the
battery
chamber
with
a coin
or
similar
objeci.
When_installing
a new
battery
make
sure
that
the plus
(+)
side faces
out.
Note: If
the meter
is exposed
to bright light
at below-freezing
temperatures
over
a long
period
of time,
it may malfunction
or
cease to operate
until
the temperature
rises
again. There-
fore,
be
careful not
to leave
the meter on for
more than
three minutes
at a time
in cold weather.
Caution:
Never
throw discarded
batteries into
a
fire.