AWB (Auto White Balance) is an in-camera function that automatically adjusts the chromatic balance of the scene to a neutral setting, regardless of the color characteristics of the ambient light source.
Although AWB generally does an acceptable job of cleaning up the color balance of a scene, there are times when AWB should not be used. Examples of times you should avoid AWB are sunrise and sunset—such scenes would lose their warm qualities with the camera set to AWB. When capturing sunrises and sunsets, the camera should be set to Daylight to maintain the warm tonalities that make dawn and dusk so visually inviting.
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