Sidelighting – light coming from the left or right of a subject. Because the light is scraping across from side to side, it catches every surface blip and imperfection, leaving a trail of large and small shadows and exaggerating surface textures.
Photographers must be very aware of the direction of light. One direction which is often overlooked by new photographers is sidelighting. Sidelighting gives an almost three dimensional effect to a subject as shadows bring out surface textures almost hidden when light is straight on. It adds drama and depth even to a ladybug climbing on a leaf.
Photo taken with a Nikon D70 digital camera and Nikon 18-200VR lens at 1/80s, f/5.6, ISO 200, EV +0.7, 200mm focal length, hand-held, no flash.