Important:
Return the aperture correction button
to its center position.
The diaphragm locking system
The diaphragm locking system per-
mits setting the aperture to provide
correct exposure for a certain sub-
ject area within a scene. This is help-
ful in scenes with great contrast - a
person in front of a bright back-
ground, a spotlighted performer on a
dark stage, for instance.
If the meter is used normally and
automatically in such cases, the dark
or bright background area influences
the diaphragm setting, thereby under-
or overexposing the main subject.
The diaphragm locking system can
be used to overcome exposure pro-
blems in such cases.
Using the diaphragm locking system,
perfect exposure can be obtained as
follows:
a) Screw the cable release in the
socket for diaphragm lock.
b) Zoom in so that the view through
the finder shows the main subject
only (no background area).
c) After having turned the little crown
anti-clockwise, lock the diaphragm
in set position with the cable release
lock.
d) With the diaphragm locked, zoom
back to cover the desired area and
film.
e) At the end of the exposure, un-
screw the..cable release.
N.B.: By turning the camera towards
a more or less luminous zone as de-
sired, you can lock the diaphragm at
any setting you wish, which is equi-
valent to manual setting of the
diaphragm.
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