barn doors

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See also: barndoors


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barn doors pl (plural only)

  1. Used other than figuratively or idiomatically: see barn,‎ doors.
  2. (filmmaking) Four hinged metal slats that come (or are attachable) on the front of cinema lights, used for shaping light and fastening light gels.
    Clip the C-47 to the barn doors.
    • 1976, Herbert Zettl, Television Production Handbook (volume 10, page 105)
      Some broads have barn doors (see page 115) to block gross light spill into other set areas; others have even an adjustable beam, []