Spot Exposure Corrections
It's always best to compose a shot well in camera. It saves work, guarantees the maximum amount of data for editing and did I mention that is saves you work and time??? Sometimes though our photos are not as well exposed as possible though. Not to fear though, Photoshop to the rescue. If there are only a few spots that are poorly exposed, maybe an over exposed area cause by a flash or a dark are that the flash didn't reach, the video below will explain how to darken light spots with the burn tool and lighten dark spots with the dodge tool. Keep in mind that excessively over or under exposed photos will not be fully functioning. It's very hard to replace data that doesn't exist in photos for poor shots and these tools will not be able to fix this.