Ellipsoidal Reflector Spotlight - ERS is an acronym standing for Ellipsoidal Reflector Spotlight. These are sometimes known by their brand names, especially Leko, short for Lekolite, the name given to them by their inventors, Joseph L. Used . evy and Edward Kook. ETC's Source Four has become a very popular ERS throughout the industry, and some people use the term Source Four to refer to spotlights in general. They come in many for. Used . ms, and are the most numerous and important instrument type in use. The flexibility of the ERS allows them to fulfill the bulk of the lighting roles in the theatre, from area lighting to close specials, from l...
Amp Module - An amp module is an individual amplifier, usually rack mountable, but may also be a stand alone amplifier.. Used . . Used . ...
Zoom Lens - A mechanical assembly of lens elements with the capability to vary its focal length allowing for a closer or farther view of a subject, without changing perspective. Zoom lenses are often described b. Used . y the ratio of their focal lengths from longest to shortest. A 100mm to 400mm zoom may be described as a 4:1 or 4× zoom.
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Xenon Lamp - A type of discharge lamp with high output generally used in Strobe lights and flashes, though sometimes found in some followspots. These lamps utilize an internal electrical discharge passed between . Used . electrodes suspended in xenon gas. Xenon lamps have a color temperature of between 5600 - 6500°K and produce extremely intense, incoherent, full-spectrum white light usually for very short d. Used . urations. ...
Color Changers - A conventional lighting fixture with a remotely controlled colored changeable filter over the lens. There are three kinds of mechanisms used in color changers, a wheel with lens sized holes into which. Used . colored gells can be placed, multiple fixed filters that can be moved in and out of the beam to mix the colors and a scroller which uses continuous, usually dichroic, filters to mix an even . Used . greater number of colors.
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