1. An automated luminaire comprising:a luminaire head comprising:
a light engine module configured to emit a light beam, the light engine module configured to move along an optical axis of the luminaire head; and
a lens module optically coupled to the light engine module and configured to receive the light beam and to project the light beam, the lens module configured to move along the optical axis; and
a control system comprising a processor and memory, the processor configured to execute instructions stored in memory to:
determine by the processor a desired beam angle for the projected light beam from one of a value stored in memory and a signal received via a data link from an external source;
calculate by the processor a separation between the light engine module and the lens module that produces the desired beam angle;
calculate by the processor a light engine module position and a lens module position within the luminaire head that (i) provides the calculated separation and (ii) positions the center of mass of the luminaire head coincident with an axis of rotation of the luminaire head; and
move the light engine module and the lens module independently along the optical axis within the luminaire head to the light engine module position and the lens module position, respectively.