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