reciprocity failure


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reciprocity failure

n
(Photography) photog a failure of the two exposure variables, light intensity and exposure time, to behave in a reciprocal fashion at very high or very low values
References in periodicals archive ?
Raleigh, NC, January 02, 2014 --(PR.com)-- Locally owned mobile application development and electronic commerce service provider, MT Design Solutions announced today the release of Reciprocity Failure Rate 2.3 for the Apple iOS AppStore.
This made for a real reciprocity failure, it might be argued, which was then reflected in declining public support for welfare and redistribution.
There are reference appendices on exposure values and reciprocity failure, plus a glossary.
If reciprocity failure is observed, then the slope of these curves at any point represents the value of the Schwarzschild p-coefficient.
"Reciprocity Failure" refers to the condition when inks fade faster exposed at a lower light intensity for a longer time period than inks exposed to higher-intensity light for a shorter time period.
CROP materials exhibit high image stability, sensitivity, dynamic range and low reciprocity failure. He said that it is the only material so far to record megapixel images with acceptable image fidelity.
Chapter 4 is devoted to films and includes a table of some of the most popular brands of color and black-and-white emulsions, along with discussions on reciprocity failure and push processing.
A number of them have had some success using light-pollution-reduction filters, but fogging and reciprocity failure (the inability of emulsions to record information efficiently during prolonged exposures) often render their efforts disappointing.