Opening up Shadow Areas (Digital Fill Flash)
In Photoshop CS, Adobe introduced a slick new way to open up shadow areas (or pull back highlight areas) called—(aptly enough)—Shadow/Highlight. This new lighting correction command can be as simple as moving a slider or you can tweak each little nuance of your photo’s shadow and highlight areas by revealing its many options. It’s ideal to use in situations where you wish you had used a fill flash (think of it as a highly flexible digital fill flash), and need to bring out detail lost in the shadows, or to reduce your highlights.
Open a photo contaning shadow or highlight areas that need adjusting. In this example, the light is coming from the side and slightly behind our subjects, so ideally ...