4. Open Aperture
Li
g
ht
Measuring
------------------------------
The
MIRANDA
Sensorex
is
the
only camera
in the world
permitting
open aperture
light
reading
with
either exclusi\'e
Miranda
lenses
or other brands
of
preset diaphragm lenses.
The
method employed in
light
measurement
is
basically the same
with
any
of
these lenses.
•
The
exposure computer system
of
the
MIRANDA
Sensorex
is
adjusted perfectly
to
the Auto-M iranda lens or other preset
diaphragm lens in use, simply by setting the
lens selector dial on the camera front accord-
ing to
the
maximum
aperture
of
the lens.
If, for instance, a
50mm
fj
1.9 lens
is
mounted
on the Sensorex,
turn
the
dial until the
figure
I.9
appears in
the
window .
•
The
lens selector dial has the following
settings:
I.4
I.9
2.8 3·5 4 5.6 8
The
CdS meter
of
the M I
RANDA
Sensorex
is
cross-coupled to the
shutter
speed and dia-
phragm mechanisms. Therefore, exposure
is
determined according to one
of
the following
methods:
I.
An appropriate
shutter
speed
is
pre-selected
and the diaphragm setting le\'er
is
turned
u
nt
il the two needl
es
in the finder are
ma tched perfectly.
2.
By
pre-selecting the lens aperture, the
meter needl
es
are matched
by
turn
ing
the
shutter
speed dial.
3.
In case
of
preset diaphragm lenses, the
diaphragm setting le\'er
is
manipulated and
the aperture reading where
the
two needl
es
coincide
is
then transferred to the aperture
scale
of
the
lens.
21
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