Image histograms are useful tools that can be used to help properly gauge the exposure and contrast within a scene during shooting or to balance the tonality of a photograph in post-production. These days, histogram graphs can be found almost everywhere, with more modern digital cameras including live displays during composition. Todays primer focuses on how to correctly read histograms and use them to your advantage.
An image histogram is a graph that plots the tonal... more (link is external)