screen

Scrim

Submitted by fivesprockets on Tue, 02/03/2009 - 14:46
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Circular screen used to soften light.

Usually a metal circular screen placed in directly front of a Movie Light to “soften” the bright light source.  Scrims usually slip into clips built onto the front edge of the lights, or they are held in place by a C-Stand.  As there is such a wide variety of scrims, the ones that are being frequently used are kept in a canvas “Scrim Bag” and hang from the appropriate Lamp on the set.  The others are kept nearby on the Electric Department’s Taco Cart.

Green Screen (Chroma Key)

Submitted by fivesprockets on Fri, 01/30/2009 - 14:58
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See Chroma Key

A newer technique similar to bluescreen, however utilizing a key green background. Research showed that substantially better results could be gained by filming on green instead of blue, as effects stock was more sensitive to separating key green from other (foreground) colors. See also chromakeying.

Blue Screen (Chroma Key)

Submitted by fivesprockets on Fri, 01/30/2009 - 14:57
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Chroma Key technique.

A process whereby actors work in front of an evenly lit, monochromatic (usually blue or green) background. The background is then replaced in post production by chromakeying, allowing other footage or computer-generated images to form the background imagery. See also greenscreen.

Chroma Key (Blue Screen, Green Screen)

Submitted by fivesprockets on Fri, 01/30/2009 - 14:54
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Mixing two or more images together by removing a specific color.

The technique (in Film & in Video) of mixing two (or more) different images together in which a specific color (typically a blue screen or green screen) is removed in order to reveal a different image behind it.  Frequently seen on Weather Reports on TV, the Meteorologist is usually seen standing in front of a Map or weather chart.  The reality is they are standing in front of a screen with a large blue or green background.  This process has been perfected to the point that today’s Special Effects companies use Greenscreens to amazing Audiences with some of Film&rsq