Sabattier effect
[sah-buh-tyey, sab-uh-]
noun Photography.
the alteration of the image tones of a photographic print by briefly reexposing the negative after it has been partially developed.
Origin of Sabattier effect
1925–30; Sabattier, erroneous for Armand Sabatier (1834–1910), French physician and scientist, who developed the effect
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019