Depth of field
Automatic exposure system
The depth of field is the zone of
sharp focus and depends on the focal
length, the lens aperture and the
focusing distance.
Depth of field is shallow when lens
is set at: .
a) long focal lengths (towards
56
mm)
b) large apertures (towards f/1.8)
c) short distances.
Depth of field is large when lens is
set at:
a) short focal lengths (towards
7
mm)
b) small apertures (towards f/22)
c) long distances.
Consult the depth of field charts in
this instruction manual.
The diaphragm opens and closes
fully automatically, controlled by a
photo resistance fed by the motor
batteries.
The light is measured through the
lens taking into account the sensitiv-
ity (ASA speed) of the film by means
of a special notch in the film cartridge.
For films of 200 ASA (24 DIN), the
aperture correction switch is set to
-'12
(see page 12).
A
glance in the viewfinder shows
whether the light is not sufficient or
too bright for filming.
a) The light is just good enough for
filming, but if the red zone becomes
any larger than on our illustration,
your film will be under-exposed. The
dividing line between the red zone
and the colorless zone corresponds
to an f/1.8 aperture.
N.B.: When filming outdoors at night
(illuminations, fireworks, neon or
electric signs, etc.) you can still ob-
tain excellent results even if the red
zone becomes larger than on our
illustration.
b) The light is very bright but still
suitable for filming; however, if the
red zone becomes any larger than
on our illustration, your film will be
over-exposed. The dividing line bet-
ween the red zone and the colorless
zone corresponds to an f/22 aperture.
11
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