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Advanced Control Network - A new protocol designed to improve upon on the exisiting known limitations of the DMX512 protocol. It was developed by the ESTA (The Entertainment Services and Technology Association).

T. Used . he Advanced Control Network (ACN) is intended to provide the next generation standard for the distribution of data in lighting control networks.
ACN needs to do much more than just supe. Used . rcede DMX. Ideally, ACN will unify lighting control networking, allowing a single network to carry many different kinds of lighting-related data and to connect equipment from different manufacturers. ACN is no

Zone System - A unique method introduced by photographers Ansel Adams and Fred Archer around 1940 for determining the best exposure and correct development for an individual photograph by way of analysiing the subj. Used . ects luminosities in terms of ten gray tones or “zones” labled 0 to IX or zero to nine and visualizing them as print densities. The zone system gives photographers a systematic method for ac. Used . curately identifing the relationship between the way they see the photographic subject and the results they achieve in their finished works....

Achromatic - A lens arrangement designed to decrease chromatic aberration, for example: to set the same focal length for red and blue light at the focal plane. Also, a color having no chroma as in black, white and. Used . grays created by mixing black and white instead of other colors that are made of chromatic pigments.. Used . ...

Acoustics - Acoustics is a branch of physics and is the study of sound, mechanical waves in gases, liquids, and solids. A scientist who works in the field of acoustics is an acoustician. The application of acoust. Used . ics in technology is called acoustical engineering. There is often much overlap and interaction between the interests of acousticians and acoustical engineers.

"... acoustics is . Used . characterized by its reliance on combinations of physical principles drawn from other sources; and that the primary task of modern physical acoustics is to effect a fusion of the principles normally adhering t...

Illumination - The simple ability to see what is occurring onstage
. Used . . Used . ...