23. Shooting with Infrared Film
When you load the AE-1 PROGRAM
with
black-
and-white infrared film,
it
is
necessary
to
make a
slight adjustment
in
focus. A
red
infrared index
is
engraved
on
most Canon lenses
for
this purpose.
First focus
as
usual through the viewfinder. Then
read
the distance opposite the distance index on
the
lens and turn the focusing ring
to
align that
distance
with
the infrared index. It will also
be
necessary
to
use a deep
red
filter,
as
specified by
the
film manufacturer, over the lens.
For
further details,
follow
the instructions
of
the
film manufacturer.
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