barn doors

See also: barndoors

English

Noun

barn doors pl (plural only)

1. Used other than figuratively or idiomatically: see barn,‎ doors.
2. (film) 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, […]