Fig. 50
reflex finder, leave this side open and cover
the
other
side
with
the
right
-
hand
half-mask.
Successful double exposures depend upon
the
rigidity
of
the
camera
and
the
obtaining
of
exactly
the
same exposure for each half. Therefore,
the
tripod
head
must
be
locked, and
the
feet firmly planted;
the
same
diaphragm, speed and
shutter
opening must be maintained; the
light
must
not
vary
between halves.
The
masks
must
be clean.
By
watching
the
camera film meter for cues,
the
action can be synchro-
nized between
the
two
halves
of
the
picture.
In
using
the
horizontal
half
-masks be sure
that
each mask is fully
seated before
making
exposures. Remember
that
to
fi
lm
the
top
of
a
scene, use the mask
with
the
lower opening, and vice-versa.
IMPORTANT: When using
the
half-masks for double exposures, use
the
diaphragm
atf.5
.6 or preferably a
larger
opening
(j
.3
.5
or
f.2.8).
Do
S3
To Next Page
Loading...
Need help?
General
