U.M. 2

~".....,_=".."...
-
Dist
a
n
c
e
Scale
Indi
cat o r
(ce
ntr
al
oran
ge
line
)
nf
rar
ed
Ind
ex
"
R"
----------
---/
Distance Scale
The
distance
scale
indicates
the
distance
be·
tween
the
focused
subject
and
the
film
plane.
The scale is necessary
for
checking
the
depth
·
of
·
field,
for
flash
and
infrared
photographies.
The
correct
position
of
the
scale is in
the
center
of
each value. For
example
,
the
correct
position
of
a
two
·
digit
value is
the
center
of
the
two
figures
.
32
Infrared Index
..
R"
For
infrared
photography
,
correction
of
the
distance
scale is necessary because
the
focal
point
slightly
deviates
from
ordinary
photogra
'
phy. Focus
first
in
the
ordinary
manner,
then
adjust
that
distance
scale
to
the
infrared
mark
" R
".
For
instance
,
if
the
distance
scale reads
10m
after
focus
ing, merely
shift
the
10
scale
to
"R
"
posit
ion.