Ad
related to: zone system photography exposure
Search results
Results From The WOW.Com Content Network
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.
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.
Exposure is a combination of the length of time and the illuminance at the photosensitive material. Exposure time is controlled in a camera by shutter speed, and the illuminance depends on the lens aperture and the scene luminance. Slower shutter speeds (exposing the medium for a longer period of time), greater lens apertures (admitting more ...
Archer collaborated with Ansel Adams to codify the Zone System, which is a photographic technique for determining optimal film exposure and development. [14] The technique is based on the late 19th century sensitometry studies of Hurter and Driffield , and provides photographers with a systematic method of precisely defining the relationship ...
In photography, exposure value ... The Additive system of Photographic EXposure ... Beyond the Zone System Archived 2007-03-10 at the Wayback Machine, ...
With ETTIH, exposure is maximized a bit further; the constraint is relaxed so that only the highlights deemed important are preserved before the right edge of the histogram, and the highlights deemed unimportant may fall into the saturation zone of the sensor. Typical examples of unimportant highlights include the Sun, other very bright light ...
In photography, reciprocity refers to the relationship whereby the total light energy – proportional to the total exposure, the product of the light intensity and exposure time, controlled by aperture and shutter speed, respectively – determines the effect of the light on the film. That is, an increase of brightness by a certain factor is ...