- density sensitometry
- денситометрия
English-Russian dictionary of telecommunications and their abbreviations. A.V. Alexandrov.. 2004.
density sensitometry
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Sensitometry — is the scientific study of light sensitive materials, especially photographic film. The study has its origins in the work by Ferdinand Hurter and Vero Charles Driffield (circa 1876) with early black and white emulsions. [Hurter, Ferdinand… … Wikipedia
Film speed — is the measure of a photographic film s sensitivity to light, determined by sensitometry and measured on various numerical scales, the most recent being the ISO system. A closely related ISO system is used to measure the sensitivity of digital… … Wikipedia
Exposure (photography) — Underexposure redirects here. For the 2005 film by Oday Rasheed, see Underexposure (2005 film). A long exposure showing stars rotating around the southern and northern celestial poles. Credit: European Southern Observatory … Wikipedia
photography, technology of — Introduction equipment, techniques, and processes used in the production of photographs. The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… … Universalium
Photographic film — This article is mainly concerned with still photography film. For motion picture film, please see film stock. Photographic film is a sheet of plastic (polyester, nitrocellulose or cellulose acetate) coated with an emulsion containing light… … Wikipedia
Densitometry — Principle of spot light densitometry Densitometry is the quantitative measurement of optical density in light sensitive materials, such as photographic paper or film, due to exposure to light. Optical density is a result of the darkness of a… … Wikipedia
densitometer — 1. An instrument for measuring the density of a fluid. SYN: densimeter. 2. An instrument for measuring, by virtue of relative turbidity, the growth of bacteria in broth; useful in microbiologic assay of nutrients and antibiotics, phage … Medical dictionary
Photographic developer — In the processing of photographic films, plates or papers, the photographic developer (or just developer) is a chemical that makes the latent image on the film or print visible. It does this by reducing the silver halides that have been exposed… … Wikipedia
Characteristic curve — may refer to: In electronics, a representation of certain electrical characteristics of a device or component Semiconductor curve tracer, a device for displaying the above curve In photography, a plot of film density: see sensitometry In… … Wikipedia
Reciprocity (photography) — In photography and holography, reciprocity refers to the inverse relationship between the intensity and duration of light that determines exposure of light sensitive material. Within a normal exposure range for film stock, for example, the… … Wikipedia
characteristic curve — Photog. a graph used in sensitometry to show the relationship between exposure time and image density under constant developing conditions. Also called sensitometric curve. [1900 05] * * * … Universalium
