When
infrared film is used, the focus
of
a lens
differs somewhat
from
the norm, and varying degrees
of
compensation are required
which
differ
from
lens
to
lens. The
depth-of
-field scale
of
each
67
lens
includes
an
infrared index mark
for
focusing
with
infrared film.
When
using infrared film,
first
, focus in the normal
manner; then, check the distance figure aligned
with
the standard index mark
of
the focusing ring. Com-
pensate
for
infrared shooting
by
rotating the focus-
ing ring until this figure is realigned
with
the infrared
index mark. For example,
if
the distance scale
is
set
at
00
(infinity) turn the
infinity
mark so
that
it
aligns
with
the infrared index
as
shown
in the illustration
above the photo .
• Always
use
an
R2
or
an
02
filter
for
infrared
photography
.
14
To Next Page
Loading...
Need help?
General
