--
PRECAUTIONS
ON
EXPOSURE MEASUREMENT
-----------------
28
The CdS exposure meter
of
Miranda Sensomat
is
of
the
reflected-light type, which calculates
the
exposure
by measuring the brightness
of
the subject.
The acceptance area covers the lower section
of
the
subject
to
be photographed and measures
the
liglrt by
a partial-average system. Depending
on
the subject,
the following methods can also be used.
1. Measuring
the
Brightness
of
Human
Subjects
If
the subject and background have the same
brightness, measuring from the shooting position gives
satisfactory results.
But
if
the
background
is
much
brighter, such as a snow scene,
open
sea or open sky,
come as close to
the
subject
as
possible and measure
the brightness
of
the
face. Be careful
not
to
let the
camera create a shadow
on
the measuring area.
2. Measuring Backlit Subjects
In
against-the-light shooting,
if
direct light enters
the
camera lens
the
meter will read
too
high and cause
under-exposure
of
the subject especially with wide
angle lenses. In such a case, come close
to
the
subject
for measuring and also take care
that
no direct light
enters the camera.
If
impossible
to
avoid this light
entry, measure
the
exposure in normal light and
give
2
to
4 times longer exposure. This
method
of
measuring
under against-the-light conditions can be used for
both
human subjects and landscapes.
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