Whether you've got a DSLR or you've turned your point-and-shoot into a super camera, those fancy features are useless if you don't understand them. Want to capture a perfectly exposed picture?

The histogram helps you spot any exposure problems. The histogram graph fails to stretch to the far left so we can see that the shot lacks strong dark shadows. The graph's highlights drop off before ...

A histogram is a graph of data. It compares the distribution or frenquency of different values or ranges of values. In order to draw a histogram, a frequency table is needed.