Students in Lance Levesque’s Digital Photo/Video I class have just completed the unit on the “exposure triangle” in photography and are taking a quiz to check for understanding.
The concept of the exposure triangle refers to the interrelationship between aperture, shutter speed, and ISO number (traditional film speed) in taking photographs for specific settings. Whenever one variable changes, at least one of the others must also change to maintain the correct exposure.
Sports photography, for example, typically requires higher shutter speed in order to “freeze the action” while longer shutter speeds in nature photography can help convey the movement of water of a brook or stream. Artistic photographs — for example, portraits taken in the Rembrandt lighting style — take the concept of the exposure triangle to a whole new level for yet another specific effect.
