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15
Nizo
camera
means
that
you
can select
the
slow
motion filming
speed
without the
slightest
delay when you need
it. The
black
button in the
center
of filming
speed switch
1
enables
you to
pass
smoothly
from
18
or
24
frames per
second
to 54 frames per se-
cond and
back.
At
54 frames per second, the
individual,
frames
are'
exposed
for only l/129th of a
second. To
compensate for this, the iris
opens
by
approximately
1.5
numbers.
Un-
der difficult
exposure conditions
this could
mean that inadequ ate
depth
of focus is
available.
If you have
sufficient
time
avail
-
able,
it is therefore best to take
a
quick
rangefinding reading
at
the maximum focal
length you intend to
use.
Speeded-up
filming (filming
speed switch 2)
With the
aid
of filming
speed
switch 2 (an
automatic single
frame filming device)
your
Nizo camera provides facilities for time
Automatic single-
Single frames using cable
frame
exposure
with
or remote release
automatic
extended
/
exposure control
•
.
- -
Standard speed
\
autom.B
®
timer
approx.
1
frame
per
minute
approx.
6
frames
per second
lapse filming at
any speed
between
6 fra-
mes per
second and
1 frame per minute
(minimum). Note however that tolerances
in manufacture may vary between indivi-
dual
cameras, and
result in
a slight
further
increase in the interval between
exposures.
For this reason the scale for filming speed
switch 2 cannot
be
accurately
'calibrated in
frames per
minute.
For
practical time-lapse
filming
,
it is
so easy
to
establish
the inter-
val between one or two frames that the
extra cost
of
an absolutely accurate
timing
device has not been passed onto you.
The fully-automatic Nizo time-lapse filming
system
not only takes care of the actual
film transport but
also
controls
exposure
accurately.
For
this
purpose, filming speed
switch
1
must be
set
to
18.
After this, the
Nizo
camera can
be left to operate
entirely
unattended, provided that
ample electric
power
and
film
stock
is
available.
When the mark on
speed
switch
2
is
oppo-
site
the
first black
rectangle on
the semi-
circular scale
(not the
separate
black
rec-
tangle,
which
identifies the position
for
manual
single
frame filming using the
cabl'
e
release, nor the
«autom. 8»
position, which
is
for automatic extended exposure con
-
trol). running speed
will
be six
frames per
second and
the
action on the screen
will
appear
to
take
place
at
three times its
nor-
mal
speed.
The Nizo
camera
will
beg'
i n to
operate
in
this case as soon as
the
contin
-
uous run release
on the base
next to
the
carrying
loop
attachment
is lifted
away
from
its
catch and swung
fully to the right.
The normal shutter
release on the hand-
grip
need not be pressed.
•
•
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.
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,
•
.
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,
.
,.
As you turn filming
speed switch 2 further
to the right, the interval between frames in-
creases.
Two frames per second, for
exam-
ple,
represent action speeded
up nine
times in relation to the original
scene,
If the
Nizo is used to film only one frame per
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