A chemical that is added to a photographic developer in order to retard development and reduce the amount of fog on a film.
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"Restrainer" Quotes from Famous Books ![]() ![]() — The Religions of India - Handbooks On The History Of Religions, Volume 1, Edited By Morris Jastrow • Edward Washburn Hopkins ![]() ![]() — Scientific American Suppl. No. 299 • Various |
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