Eagle makes 3 different interior pan tilt heads. The choice is based upon the load you expect to have between your camera, lens, and optional equipment, such as a teleprompter unit.
The PT50 is our smallest head, for loads up to 6 pounds (2.5 kg).
The PT101 is our most popular head, for loads up to 12-14 pounds (5-6 kg.).
The PT250, for ENG cameras with prompters up to a load of 40 pounds (18 kg.). Eagle recommends Tekskil DBC prompters for use with the PT-250 head.