[citation needed] From 1963 until its July 1978 issue, Yamagishi edited Camera Mainichi, and was widely admired both for the quality of the photography he was able to present there and for the encouragement he gave to young photographers.
Yamagishi worked with his friend John Szarkowski to mount two exhibitions of Japanese photography in New York.
"New Japanese Photography" (Museum of Modern Art, 1974) presented works by Ryōji Akiyama, Ken Domon, Masahisa Fukase, Eikō Hosoe, Tetsuya Ichimura, Yasuhiro Ishimoto, Bishin Jūmonji, Kikuji Kawada, Daidō Moriyama, Masatoshi Naitō, Ikkō Narahara, Ken Ohara, Akihide Tamura (as Shigeru Tamura), Shōmei Tōmatsu, and Hiromi Tsuchida.
"Japan, a Self-Portrait" (International Center of Photography, 1979) presented works by Ryōji Akiyama, Nobuyoshi Araki, Taiji Arita, Masahisa Fukase, Shinzō Hanabusa, Hiroshi Hamaya, Miyako Ishiuchi, Kikuji Kawada, Jun Morinaga, Daidō Moriyama, Ikkō Narahara, Kishin Shinoyama, Issei Suda, Shōmei Tōmatsu, Haruo Tomiyama, Hiromi Tsuchida, Shōji Ueda, Gashō Yamamura, and Hiroshi Yamazaki.
This was exacerbated by the pressures of making the selections for a Magnum exhibition in Tokyo, prompting his suicide.