Sigma C21EN0291 User Manual

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This section explains the application of the more advanced functions of 
your camera, when composing the expressions of your picture. 
SETTING THE WHITE BALANCEWB 
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. 
 
 
 
In order for the digital camera to do the necessary 
corrections, it needs to know the lighting type you 
are photographing under.  The "White Balance" 
setting can be used to specify a lighting type from 
a list of pre-defined lighting conditions.  The 
default setting for White Balance is Auto.  In this 
setting the camera will automatically adjust for the 
lighting conditions.  When the camera is set to 
Auto White Balance, ”
”  will be displayed in 
the top LCD panel. If you are uncertain of the 
lighting conditions, or you do not know how to set 
the white balance correctly, it is best to leave the 
White Balance set to Auto.     
 
 
 
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