Figure 1. Camera set up.

Models wore black hats to cover hair and ears and were seated in front of a black felt backdrop. Three cameras were positioned at 0°, 30° and 60°, and controlled using dot-line remote release triggers. Spotlights were positioned at 0° and 60° and were softened using white photography umbrellas. Models initially faced Camera 1. Once photographs were taken for all facial expressions, under two lighting conditions, models were reseated to face Camera 3, allowing 0°, 30° and 60°, angles of the other side of the face.