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The Zone System is a photographic technique for determining optimal film exposure and development, formulated by Ansel Adams and Fred Archer. [1] Adams described the Zone System as "[...] not an invention of mine; it is a codification of the principles of sensitometry, worked out by Fred Archer and myself at the Art Center School in Los Angeles, around 1939–40."
An early application of exposure compensation was the Zone System developed by Ansel Adams and Fred Archer. [3] Although the Zone System has sometimes been regarded as complex, the basic concept is quite simple: render dark objects as dark and light objects as light, according to the photographer's visualization.
Fred Robert Archer (December 3, 1889 – April 27, 1963), was an American photographer who collaborated with Ansel Adams to create the Zone System. He was a portrait photographer, specializing early in his career in portraits of Hollywood movie stars. He was associated with the artistic trend in photography known as pictorialism. He later ...
Spot metering gives correct exposure of the moon and underexposes the rest of the scene which was dark already, so the low exposure is not noticeable. Spot metering may also be used for theatre photography, where brightly lit actors appear in a darkened auditorium. Spot metering is a method upon which the Zone System depends.
In computer security, a DMZ or demilitarized zone (sometimes referred to as a perimeter network or screened subnet) is a physical or logical subnetwork that contains and exposes an organization's external-facing services to an untrusted, usually larger, network such as the Internet.
A trunked radio system is a two-way radio system that uses a control channel to automatically assign frequency channels to groups of user radios. In a traditional half-duplex land mobile radio system a group of users (a talkgroup ) with mobile and portable two-way radios communicate over a single shared radio channel, with one user at a time ...
The only other facility we were allowed to see was a karaoke club, with spectacular private rooms, cavernous domes entirely covered in digital screens on which huge tropical fish and sharks swam.
Deadband is the period of dead-state of a system. A deadband or dead-band (also known as a dead zone or a neutral zone) is a band of input values in the domain of a transfer function in a control system or signal processing system where the output is zero (the output is 'dead' - no action occurs).