Eliminate Color Casts

From Macworld

Accurate exposure, faithful color, and sharp focus are the technical cornerstones of good photography. Of the three, color is the most often overlooked—many indoor shots end up with a dark reddish tint, while many outdoor snapshots end up blue and lifeless. But there’s plenty you can do to avoid these problems—even if you’re using a basic point-and-shoot digital camera. The key is understanding your camera’s white-balance settings.

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