It has been quite some time since I last came across these
terms, but if my memory serves me right:
ANGLE ON is a type of shot that usually takes place in scenes of
large settings with various objects of focus. If you are on a field
with a heap of fire-blackened human bones and maggot-infested
flesh, and the previous shot was a detail shot of the flesh, you
may indicate ANGLE ON to tell the director to suggest a new shot in
the same location, pointing the camera in a direction that feature
the bones.
You could use REVERSE ANGLE or COUNTER POV (Point-Of-View) to
denote a new shot from an opposite point of view. For a 180 degree
rotation of the camera, you could use PAN but it may disorientate
the viewer if the panning speed is too fast.
As for moving upwards, if your camera is turning upwards -- like
when we turn our heads to look upwards -- use PAN. If it is
following the upward movement of a certain object in the scene, use
TRACK to indicate a tracking shot.
The tool in the picture is usually called a crane.
HTH
