User manual

METERING WITH THE XG-9
(Automatic mode only)
The center weighted metering system in
your XG-9 employs two CdS cells mounted
behind the pentaprism so that light from all
parts of the viewfield (picture area) is measured
but influence from a broad central area is
greatest. Thus the reading should yield satisfac-
tory exposure without adjustment as long as
the main subject area occupies a major part of
the frame.
If the subject area to be measured occupies a
relatively small
part of the frame, move the
camera so that the main subject fills most of
the frame. Note the shutter speed setting in this
position and compensate for the exposure
difference with the shutter-speed/function se-
lector or use manual speeds to set the same
value when making the exposure from the
original position. Further, if the most impor-
tant area is very much brighter or darker than
the rest of the frame and does not fill most of
it, exposure should be decreased or increased
with the same control from 1/2 to 2 stops, the
exact amount varying with the specific bright-
ness difference and the effect desired. (p. 29).
As with most metering systems, strong
sources of direct light or other very bright areas
may influence the reading adversely if allowed
to dominate the frame.
Though your XG-9 finder is designed to
minimize the effect on the meter of light
entering through the finder eyepiece under
usual conditions, care must be exercised to
prevent this especially if you wear glasses. Use
of a rubber eyecup is further recommended
when the subject is in shade and the camera is
in sunlight, when bright sidelight falls between
eye and eyepiece, or when stop-down metering is
used, particularly at small apertures (see p. 44).
When viewing is unnecessary, the eyepiece cap
(see
p. 25) can be used to completely eliminate
this problem.
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