Regardless of their presence or absence in the actual shot, the reflected and incident light are two separate things that are often confused. Reflected light refers to light that settles on your subject or the amount of light indicating from your subject. This light is usually measured using a reflected light meter. The incident light refers to the amount of light that is illuminating your subject. The incident light meter does a great job of measuring this amount if light to help you reach an acceptable level for better photo outputs.