Canoi – Canon Model 7 User Manual
Page 37
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INFRARED PHOTOGRAPHY . ..
Canoi^^
The
letter
“R”
is
on
the
depth-of-field
scale
of
all
Canon
lenses.
This
is
for
infra
red
film.
When
using
this
film,
focus
in
the
normal
way.
Read
off
the
distance
of
the subject you are focusing on as shown
opposite
the
distance
indicator
mark
on
the
lens
distance
scale.
Turn
the
lens
barrel
until
the
distance
reading
is
op
posite
the
"R"
mark.
For
example,
when the subject you have focused on is
25-feet
away,
turn
the
lens
barrel
until
the figure 25 is opposite the " R " mark.
Your
lens
is
now
focused
for
infrared
photography.
■il
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