An arrangement of four metal leaves placed in front of the lenses of certain kinds of spotlight to control the shape of the light beam.
Are an accessory used on spotlights and flood lamps to control the direction of light and width of the beam. Studio lighting is often modified to prevent light from reaching parts of the scene. In order to do this, something must be position to shadow that region. Barn doors have 4 to 6 doors which can be opened and closed to allow/disallow light t...
[n] - the large sliding door of a barn
An involuntary swing away from the wall.
A device with two or four doors for masking a light beam off areas.
noun the large sliding door of a barn
An arrangement of four metal leaves placed in front of the lenses of fresnel spotlights (qv) to control the shape of the light beam.
To swing sideways out from the rock due to being off balance. Often occurs with a lie-back maneuver.