Each has a flip-out, swiveling screen on the back. That feature permits you to shoot at high, low and side angles, not to mention allowing self-portraits. (Nikon’s screen flips downward below the camera, rather than off to the side — an arguably better design, since it keeps your view in line with the lens.) But a flip-out screen also gets the big black camera away from your face, thereby getting more natural, relaxed expressions from your subjects, especially young ones.