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To
insert
or replace a gelatin filter, proceed as
follows:
Open
the
filter
mount by pushing the
lever
in
the
direction
shown
by the
arrow.
Trim the gelatin filter to the required
size
(simply
divide a
filter
2" square
into
4
sections
of
25
x
25 mm).
Separate the
two
sides
of
the
filter mount,
slide the
filter into
position and replace the lever, making sure
that this is
correctly angled in
relation
to
the
filter
mount
notch
(a).
Focusing adjustment.
Placing a filter
behind
the lens
slightly
alters the lens
focusing.
However, the
necessary
correction
is
automatically
made
when
the reflex
view-
finder
is
used.
Important. Because of
its distance
from
the
film
plane,
the
filter mount
cannot be used as a mask
holder for
trick effects,
such
as keyhole
and binocular
cut-outs.
The shape
of
the mask will not
appear on
the film
and
it
will only darken
the
scene.
15
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