    Every scene in POV-Ray has a camera defined.  If you do not specify a
 camera then a default camera is used.  The camera definition describes the
 position, angle and properties of the camera viewing the scene.  POV-Ray
 uses this definition to do a simulation of the camera in the ray tracing
 universe and 'take a picture' of your scene.

    The camera simulated in POV-Ray is a pinhole camera.  Pinhole cameras
 have a fixed focus so all elements of the scene will always be perfectly in
 focus.  The pinhole camera is not able to do soft focus or depth of field
 effects.

    A total of 6 vectors may be specified to define the camera but only a few
 of those are needed to in most cases.  Here is an introduction to simple
 camera placement.
