minute, the complete action taking place
during one hour will be shown on the
screen in
3.3 seconds
if
the
projector
is
running at
18
frames
per
second (speeded
up
1080 times).
If you use a filming speed between 6 and
approximately 2 frames
per
second, it is
.
not
absolutely necessary for the camera to
be attached to the
tripod
. However, you
must
hold
the camera very steady, avoid
panning
or
tracking with the zoom lens and
remember that
in
order
to obtain 1 second
of viewing time
on
the screen you must
shoot for
3-9
seconds.
Genuine time
lapse cine photography, on
the
other
hand, calls
for
the camera to be
mounted
absolutely rigidly on a tripod. As
a temporary measure, the Nizo can be
rested on its handgrip , but remember that
this
will
limit
you to the field of view
obtained where the camera happens to be
resting.
Animation
If Single frames are exposed at prolonged
intervals, you
will have time to rearrange
the position
of
inanimate
objects
between
each exposure. For instance, you
could
raise
or
lower
the arm of doll by a small
amount each time
or
push a matchbox a
small distance further across a table these are just two
simple examples. When
these
single exposures are
projected
at the
normal continuous speed of
18
frames per
second, the inanimate
objects
come to life
on
the screen. The
doll
waves her arm and
the match box
travels to and fro across the
table.
For all shots of this type, the camera must
be mounted
absolutely rigidly. It
is
best
for
it to be attached to a substantial tripod. If
the camera position is moved
accidentally
halfway
through
a shot, it is best to change
to a
shot
taken from another viewpoint
or
at another focal length in
order
to disguise
the
jump
in the action. The camera shutter
can be
operated
manually with a cable'
release
or
by means of the
electric
remote
release. However, you can also set the
automatic
single frame device to make exposures at suitable intervals, so that you
need not move backwards and forwards
constantly between the camera (to expose
each
single frame) and the
object
you are
filming (to
alter
its position slightly). All you
need to do is to
select
a filming interval at
filming speed switch 2 which gives you
sufficient
time
to rearrange
or
move the
object
you are filming.
Flash illumination for time lapse filming
Since the interval between exposures in
this type of
single frame
filming
is
quite
long, each separate exposure can
quite
easily be illuminated by means of
an
elec-
tronic
flash gun of adequate power, which
at the same time supplies a natural
light
at
a
color
temperature
similar
to that of day-
light. A
further
advantage is that
objects
sensitive to heat (plants, thin gels
for
ani-
mated
films, etc.) are not continually ex-
posed to the heat of spotlights
or
photo-
floods. Your Nizo camera is therefore
pro-
vided with a connection for the flash gun
synchronizing
cable (at far left of camera
base).
Connection
for electronic
flash
The
electronic
flash
unit
must be of ample
capacity
since
18
flashes are required to
illuminate one second's filming and should
also
be capable of repeating its flashes
frequently enough for lengthly series of
single shots to be filmed. The flash gun
must have recycled, ready for the next shot,
before the camera
timer
has advan.ced the
film.
Braun offers three
electronic
flash guns (all
equipped with a swivel reflector) which
meet the requirements. The Braun F
800
is
a
large, two-section professional
unit
which
can
supply
up
to
400
flashes (depending on
the storage battery used) at minimum inter-
16