Denis Olivier Fine-Art Photography · Jun 22, 2026
PC-TEA black-and-white film developer
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The PC-TEA developer is a well-known "home-brew" (homemade chemistry) formula called PC-TEA (phenidone + vitamin C + triethanolamine), popularized by photographic chemist Patrick Gainer. More information https://www.denisolivier.com/pc-tea-black-and-white-film-developer

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