Although there is a time and a place for everything, under or over exposing all of your images all of the time is probably not necessary (see previous post). The question is, if you had to choose, would it be better to over or under expose your digital image? Although there is some debate on this issue, it's probably better to over rather than under expose an image. The digital media tends to hold more information in the bright areas than in the dark areas. Also when you brighten a dark image, it tends to look milky. You will have fewer problems darkening a bright image.
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