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Farmer's reducer

American  
[fahr-merz] / ˈfɑr mərz /

noun

Photography.

  1. a solution of ferricyanide and hypo for reducing density and increasing contrast in a negative.

Etymology

Origin of Farmer's reducer

Named after E. H. Farmer (died 1944), English photographer

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The prints require to be well washed and free from hypo before being placed in the bromide-ferricyanide bleacher, because any hypo in conjunction with the ferricyanide will form the well-known Farmer’s reducer, and cause patchiness of the prints.

From Project Gutenberg

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.