Moving lights achieve movement by physically moving the source with two
motors housed within a yoke. This Pan/Tilt relationship equates to a polar
coordinate system using azimuth and elevation. When you pan more than you tilt
the light will move in an arc:
We have become used to this characteristic movement of intelligent lights. Very
good moving lights that move extremely smoothly are sometimes described as
moving in an organic manner or looking like they are operated by a follow-spot
operator. People are quick to forgive the fact that they are always moving in this
arc pattern. Natural Language Control gives you the option of how the light will
move. It doesn't have to move in an arc. When a follow-spot operator moves a
light from point A to point B, the light normally travels in a straight line.
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