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:
“Between women love is contemplative; caresses are intended less to gain possession of the other than gradually to re-create the self through her; separateness is abolished, there is no struggle, no victory, no defeat; in exact reciprocity each is at once subject and object, sovereign and slave; duality become mutuality.”
—Simone De Beauvoir (1908–1986)
“The basis of good manners is self-reliance. Necessity is the law of all who are not self-possessed.”
—Ralph Waldo Emerson (1803–1882)
“... how have I used rivers, how have I used wars
to escape writing of the worst thing of all—
not the crimes of other, not even our own death,
but the failure to want our freedom passionately enough
so that blighted elms, sick rivers, massacres would seem
mere emblems of that desecration of ourselves?”
—Adrienne Rich (b. 1929)