Reciprocity Law Failure
Reciprocity law failure is a phenomenon that same amount of exposure (irradiance multiplied by duration of exposure) produces different image density when the irradiance (and thus duration) is varied.
There are two kinds of reciprocity failure. They are both related to poor efficiency of utilizing photoelectrons to create latent image centers.
Read more about this topic: Latent Image
Famous quotes containing the words reciprocity, law and/or failure:
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—Simone De Beauvoir (1908–1986)
“It is a law of life that human beings, even the geniuses among them, do not pride themselves on their actual achievements but that they want to impress others, want to be admired and respected because of things of much lower import and value.”
—Stefan Zweig (18811942)
“Slowly the poison the whole blood stream fills.
It is not the effort nor the failure tires.
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—William Empson (1906–1984)