Advanced Operation; Setting The White Balance（Wb - Sigma DP2S User Manual

ADVANCED OPERATION

This section explains the application of the more advanced
functions of your camera, when composing the expressions of
your picture.
SETTING THE WHITE BALANCE（WB）
The color of light reflected by an object can vary depending on the
color of the light source illuminating it. For example, a neutral colored
object will reflect reddish light under incandescent lighting, and
greenish light under fluorescent lighting. The human brain is able to
compensate for differences in the color of a light source, allowing us to
see white objects as white, independent of the lighting condition. Film
cameras rely on special color-correcting filters and film types to adjust
for these differences in lighting. Digital cameras, however, are able to
use software to mimic the adjustments made by the brain, so that
colors that appear white to the human eye also appear white in your
photographs.
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