Sergey Prokudin-Gorsky
Sergey Mikhaylovich Prokudin-Gorsky (Russian: Сергей Михайлович Прокудин-Горский, IPA: [sʲɪrˈɡʲej mʲɪˈxajləvʲɪtɕ prɐˈkudʲɪn ˈɡorskʲɪj] ; August 30 [O.S. August 18] 1863 – September 27, 1944) was a Russian chemist and photographer. He is best known for his pioneering work in colour photography and his effort to document early 20th-century Russia.