Rembrandt lighting is a technique utilizing one light and one reflector or two separate lights. It’s a popular technique because it creates images that look both dramatic yet natural. It’s predominantly characterized by a lit-up triangle underneath the subject’s eye on the less illuminated area of the face (fill side).
how is it set up?
At its most basic, Rembrandt lighting consists of a single light source placed on a 45 degree offset from the subject, about 5 feet away. Positioned roughly two feet higher than eye level, the light source is angled slightly downward and hits the side of the face that is farthest away from the camera.