Olympus IS-2DLX, Инструкция по эксплуатации

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EXPOSURE
Automatic Exposure Mode
Exposure refers to the amount of light which strikes
the film, and is controlled by a combination of
aperture size and shutter speed. The correct
amount of light, called correct exposure, depends
on the film speed (indicated on the film package,
e.g. ISO 100 or ISO 200)
The automatic exposure function automatically sets
the correct exposure. The IS-2 employs two types
of automatic exposure modes: (1) programmed
auto exposure, and (2) aperture-preferred auto
exposure.
With programmed auto exposure, the camera
automatically selects the most suitable combination
of F stop and shutter speed for the existing lighting
conditions. This lets you concentrate on composing
your shot and releasing the shutter at just the right
time.
With aperture-preferred auto, you select the desired
F stop, and the camera automatically selects the
correct shutter speed. Aperture-preferred auto
allows greater manual control for more artistic
freedom of expression and creativity.
Program Chart (Standard Photography Mode)
Following program chart is for 35mm wide-angle
and 135mm telephoto focal lengths. According to
the focal length, the camera's program itself
changes. When the subject is brightly lit, the F stop
and shutter speed changes simultaneously. When
the lighting is darker, the aperture opens fully and
the shutter speed changes to match it.
In the standard photography mode (refer to p. 12),
if the built-in flash has been flipped up, it will
automatically fire in dark lighting conditions. The
shutter speed will be fixed at 1/100-sec.
Program Chart (Portrait Mode)
The chart shown below is a program chart for
portrait mode.
The shutter speed will automatically be adjusted up
to 1/2000-sec. with the aperture fully opened. If the
lighting then becomes brighter, the aperture will be
adjusted to compensate. This is because with a
larger (more open) aperture, the depth of field is
reduced. That means that the farther the
background is, the more out-of-focus it will be. At
the same time, shutter speed is increased to
prevent blurry pictures caused by shaking the
camera.
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