What was once a perplexing and mysterious photo accessory, electronic flash has evolved into an easy to utilize tool. It seamlessly couples to the camera body’s hot-shoe and interfaces with the in-camera computer. The days of manually setting ƒ-stops, calculating guide numbers or measuring flash to subject distance is done automatically and yields perfectly balanced and exposed digital files. Flash is used for many purposes. It adds light to a dimly lit subject, helps freeze motion due to its very short duration, allows lower ISOs to be used when it becomes a main light, it’s an extremely versatile source to fill in shadows, it can be used creatively to provide stroboscopic or slow motion effects and, when used as a primary...