Modification
of the diaphragm reaction time Deliberate aperture correction
Remarks:
1. When filming in snow, by the sea-
side or against the light, with a color
film of a sensitivity equal to or less
than 40 ASA (17 DIN), you can film
even if the red zone becomes larger
than on our illustration;
2. The grey filter supplied with your
camera is to be used only if you are
using a film of a sensitivity greater
than 100 ASA (21 DIN), or when you
wish to reduce the aperture by two
stops, in order to make dissolves (see
page 14) or to reduce the depth of
field (see page 11).
12
When you push the preselection but-
ton for dissolves (see page 14) to the
position «on", the automatic dia-
phragm setting device reacts much
more slowly than usual; in this way,
you can avoid too rapid and too fre-
quent fluctuations in exposure, when
filming certain types of scenes (shots
of road traffic, panoramic views of
subjects with violent contrasts of
lighting, etc.).
..--
n, +
1 • • •
-1
.-,
....
By means of a sliding switch in the
base of the camera, deliberate over-
and underexposures can be made
without eliminating the automatic
diaphragm control.
By pressing the red locking button,
the switch' can be moved to
"+
1" or
"-1",
or to intermediate positions
corresponding to
"+
'12"
or "-
'12".
At the
+
1 setting the diaphragm is
opened by one stop which is useful
for backlighted shots, portraits
against large bright areas.
At the - 1 setting the diaphragm is
Closed down by one stop to reduce
exposure (for shots from a dark door-
way, for instance).
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