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)
“You made us in the House of Pain. You made us things. Not men, not beasts, part-man, part-beast: things.”
—Waldemar Young, U.S. screenwriter. Erle C. Kenton. Sayer of the Law (Bela Lugosi)
“Parents are never forgiven for not giving just the right response at the appropriate moment. Or, rather, there are particular times in the adolescent’s or young adult’s life, when a certain response is needed, and this need is not met, and the failure to meet this need is forever remembered, and is never forgiven.”
—Terri Apter (20th century)