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Joule - A term in the international system for a unit of electrical, mechanical, and thermal energy equal to the work done when a current of one ampere is passed through a resistance of one ohm for one second. Used . . Surge protectors are often given joule ratings, but this rating refers only to the amount of energy they can absorb, not what gets through. Its value was calculated originally by James Pr. Used . escott Joule, but the term was first introduced by Dr. Mayer of Heilbronn....

Outboard Effects - Outboard effects hardware is generally used to artificially enhanced or processes sounds or audio signals to artistically emphasize or place the content into a more appropriate signal.. Used . . Used . ...

Prime Lens - A lens whose focal length is fixed. Prime lenses are not as versatile as zoom lenses, but are generally superior in optical quality. This is due to the simplisity of design with fewer moving parts th. Used . at can be optimized for one specific focal length. . Used . ...

Memory Consoles - Memory-based consoles have become very popular in almost all larger installations, particularly theatres. These new types of controls have completely replaced preset consoles as controllers of choice. Used . . Memory consoles are preferable in productions where scenes do not change from show to show, such as a theatre production, because scenes are designed and digitally recorded, so there is les. Used . s room for human error, and less manpower is required to produce the same result.

Memory consoles have a bank of faders called 'submasters.' These submasters can be programmed to control a single

Color - Color temperature is measured in kelvins, and gel colors are organized by several different systems maintained by the color manufacturing companies. The apparent color of a light is determined largel. Used . y by the gel color given it, but also in part by the power level the lamp is being run at and the color of material is it to light. As the percentage of full power a lamp is being run at drop. Used . s, the tungsten filament in the bulb glows orange instead of more nearly white. This is known as amber drift or amber shift. Thus a 1000-watt instrument at 50% will appear far more orange than a 500-watt instr