Step 5: Expose Yourself

For many photos, you can just drag the Exposure slider to the right until the peaks are more centered. Our problem is that we have lower peaks on the right side that we don't want to turn into high cliffs on the edge of the histogram. (Cliffs show that color is being lost to highlights.) Drag the Exposure slider right until it's at about 13 percent.

On a less-mucked-up photo, tweaking the Exposure can do the trick.