View Piont
It's the angle from which you take a picture, or the distance from which you take it. For example, you might stand right next to a tree and take a picture of the it with your camera pointing up, or you might stand 20 yards back and take a picture of it. These are two different viewpoints. Or, you might stand at the base of a mountain and take a picture of it towering over you, or you might be on the top of the mountain looking down at the rest of it.