Precise camera location and focal length?

 From:  TOM (SIRTOM)
8476.8 
Great helper ! I would like to ask 3 questions here :

I have positioned the camera manually in a scene for which I want to make use of the new script now.

- How / Where can I get the exact coordinates of the camera viewpoint I placed manually ?

- Is it possible to rotate the camera around a specific coordinate (fixed / defined by a point object) ?

- If the viewpoint is infinite (horizon) just type in a very high value for Y ?