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A FEW USEFUL HINTS
Focussing
In order to achieve pinpoint focussing with the 'ground-glass screen,
it is essential
to
.bring the zoom lens to its
••telephoto"
position
(e.g.
for the standard lens
:
66
mm) and to
full
aperture (f
1,8
for
the standardlens.). Focus the image with the focussing
ring.
Then
adjust
the focal length to frame the picture exactly as
desired:
the
image will remain perfectly
sharp.
Zoom
For focal lengths
greater
than 30 or 40
mm,
the use
of
a tripod is
highly
advisable,
for otherwise the operator's
slightest
movements
are amplified and, on
projection,
the picture will oe
unsteady.
As
a general
rule,
use a tripod whenever possible: the film's steadiness
will lhvarlably.qaln by it.
Photocell
Only shoot when the needle is in
the
indicator
notch.
If
the
light
is too poor, use slow filming speeds (ASA compensation is built-in)
when the subject is not
moving.
Some sequences may have to be filmed in
zones'
in
which hght-
contrast is strong (beach or snow
scenes',
dark Shadows ...). When
the film
subject
is
in
one
ot
these zones
(full
sunlight or deep
shadow),
it
is imperative
that
the cell should only
react
to the
actual lighting in this zone
alone.
54
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