Man Ray began using solarization in his photographs in 1929. This partial and unpredictable reversal of tones was the result of exposing a still-developing negative or print briefly to light. Man Ray claimed to have stumbled upon the technique when his studio assistant Lee Miller accidentally turned on the darkroom light while he was developing negatives. (The procedure is also sometimes referred to as the Sabattier effect after Armand Sabattier, who discovered the process in 1862.) Solarization offered Man Ray an exciting way to imbue his figures with an electrically-charged outline or a glowing aura.This was, he later said, “a chance to produce a photograph that would not look like a photograph.”