Born 1953 in Thailand. After graduating from the Tokyo School of Photography (now Tokyo Visual Arts), he became Masahisa Fukase’s assistant, and in 1981 went independent as a freelance photographer. In ’87, Seto and Michio Yamauchi opened the gallery PLACE M in Shinjuku. Received the 21st Kimura Ihei Award for Silent Mode (’95) and Living Room, Tokyo (’96), and the Shincho Gakugei Award for his autobiographical essay Tooi to Masato (’99). Other photo collections include Bangkok, Hanoi 1982 -1987 (’90), and binran (‘08), a series of photographs of Taiwanese women selling betel nuts in glass cases with electric spectaculars by the roadside, for which he received the Photographic Society of Japan’s Annual Award. In addition to being a photographer, his wide-ranging work in the field of photography includes functioning as a judge at the Kimura Ihei Award.