What color is white? Your digital camera must answer that question every time it takes a picture. To a camera white looks different indoors, outdoors, at sunset, and at high noon. Unfortunately, when running on full automatic settings, most digital cameras get it wrong about as often as they get it right--a major reason so many pictures have obvious color problems.
Just snap the opaque cap onto the front of your camera lens, and then set your camera's white balance. Unlike most white-balance aids, the ExpoCap gives your pictures a slightly warmer tone, which translates into better skin tones in pictures of people.