SIGMA C21EN0291 - Manual (Page 53)

SETTING THE WHITE BALANCE
TIP
·
When a custom white balance setting is successfully captured, "Custom" will
automatically become the selected item in the White Balance menu.
·
It will not be possible to capture a custom white balance setting if the "D"-dial is
set to Continuous Shooting , Self Timer , or Mirror Lock-up
mode.
·
It is recommended that an automatic exposure mode such as P, A, or S be
used when capturing a custom white balance setting to ensure proper exposure.
·
It may be necessary to set the lens to manual focus (P.45) when capturing a
custom white balance setting since auto focus may not work properly when
photographing low contrast subjects.
SETTING THE SENSITIVITY ISO EQUIVALENCY
The photosensitivity of digital cameras is
described in terms of “ISO equivalent” like
silver-halide film cameras. (ISO sensitivity
P.105
)
To choose a sensitivity setting, turn the “C”-dial
while depressing the “ISO Button”.
ISO sensitivity can be set to 100, 200, 400.
To check or confirm the ISO sensitivity, depress
the ISO button. The ISO icon and current setting
of the sensitivity value will be displayed on the
top LCD panel.
NOTE
·
The lower ISO photosensitivity (the smaller ISO number) generally gives better
results, however, it is hard to set higher shutter speed in dim light. The higher
ISO number will give greater ISO photosensitivity, which is advantageous for
taking picture in dim light conditions, but pictures would contain more noise and
be less sharp. Thus it is necessary to choose the ISO sensitivity properly
depending on the photographic subject.
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