Director of Photography Jon Salmon shows you how to use a histogram
Though they all may look a little different, most DSLR cameras and video cameras should have a histogram or graph option to keep an eye on the exposure levels as you're shooting. Take a look through your menu options for your display and see what you can find.
Questions for Jon? Ask directly in the forums! bit.ly/DiscussHistograms
Text, image and video via RocketJump Film School