Apple Motion 4 - Manual (Page 1209)

Camera Controls
You can modify a scene camera’s properties via the Camera HUD or the Camera and
Properties tabs in the Inspector.
Parameters in the Inspector
Camera Type: A pop-up menu that sets the type of camera used. There are two options:
Framing (the default value) and Viewpoint. A Framing camera has its origin at the focal
plane. The focal plane of a camera is a plane located at a distance equal to the camera’s
focal distance along its local Z axis (or line of sight) and oriented perpendicular to the
camera’s local Z axis. A Viewpoint camera has its origin at its center of projection.
Framing
camera
Camera’s focal plane
Camera’s angle
of view
Viewpoint camera origin
and center of projection
Framing camera origin
Camera’s angle of view
Tip: The position of a Framing camera’s origin makes it useful for orbiting moves. Rotating
the camera causes it to orbit, whereas rotating a Viewpoint camera causes it to pivot.
Angle of View: A slider and value slider that set the angle of view of the camera, which
is the number of degrees in which the camera sees. Value can be selected from 0 to
180 degrees.
1209 Chapter 18 3D Compositing