Mitsugu Ōnishi (大西みつぐ,[1] Ōnishi Mitsugu; born 7 October 1952) is a Japanese photographer.
Born in Tokyo, Ōnishi graduated from the Tokyo College of Photography in 1974, rejoining a year later as a teacher, and staying there in that capacity until 1994.
Ōnishi photographed everyday life and his native Tokyo; he later turned his attention to suburban housing projects.
In addition to the collections of his photographs, he has written books about photography and cameras.
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