Wig-wag (sound stage)

A wig-wag is the red light (also known as a "red-eye") near each door of a motion picture sound stage. It flashes to indicate that cameras are rolling inside the stage and all people and vehicles outside should remain quiet. A flashing wig-wag is accompanied by one long buzzer when the cameras start rolling, and two shorter buzzers when cameras stop rolling.

References

• Richard W. Kroon (30 April 2014). A/V A to Z: An Encyclopedic Dictionary of Media, Entertainment and Other Audiovisual Terms. McFarland. p. 750. ISBN 978-0-7864-5740-3.