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As
a reminder of film type. ASA/
ISO
speed, and the
number
01
exposures on the roll
in
use, clip off the
end of the
film
carto
n and insert into the memo holder
46
The red dot located just beside the focusing index
on
most lenses
is
the infrared focusing index. When
shooting with black-and-white infrared
film,
it
is
necessary to refocus the
lens to compensate for the
fact that infrared rays focus at a point
slightly
in
front
of
vi
sible light.
To
use the index, focus on your subject
through the viewfinder, then
look at the lens and take
note of
th
e focused
di
stance. Finally, reset the focu
s-
ing ring so that the desired distance
is
aligned with
the red
dot.