Numeric values of camera angles while tracking When tracking, for example the origin, and moving the camera in
space, the camera angles are clearly not zero. Still, in the 
parameter display the 'Transform/Rotation' is displayed as (0,0,0).
How is this possible?



How can I get the real camera angles?
You have a Track to constraint on the camera (it's what I see), or a parent relation maybe. 
The Rotation in the properties panel does not take in account the constraints or parenting effects, so it shows 0.

You can enter bpy.context.scene.camera.matrix_world.to_euler() in the console and it should give you the real orientation of the camera.