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| Kodak Tri-X 400 | |
|---|---|
| Name | Kodak Tri-X 400 |
| Speed | ISO 400/27° |
| Format | 35mm, 120, sheet film |
| Maker | Eastman Kodak Company |
| Introduced | 1940s |
| Type | Black-and-white negative film |
Kodak Tri-X 400 is a high-speed black-and-white negative film introduced by the Eastman Kodak Company that became a staple for photojournalists, street photographers, and fine-art practitioners. First adopted in pressrooms and war reporting, it has been used by photographers on assignments for publications such as Life (magazine), Time (magazine), and The New York Times and has influenced imagery exhibited at institutions like the Museum of Modern Art, National Gallery of Art, and Tate Modern.
Tri-X debuted in the mid-20th century during a period of expansion in photographic technology and press photography, competing with films used by photographers working for Magnum Photos, Black Star (photo agency), and Associated Press. Its adoption paralleled assignments covering events such as the Korean War, Vietnam War, and coverage of figures like Ernest Hemingway, Pablo Picasso, and Martin Luther King Jr. in the pages of Life (magazine), Paris Match, and The Sunday Times. Throughout the late 20th century, photographers associated with W. Eugene Smith, Henri Cartier-Bresson, Dorothea Lange, and Garry Winogrand employed Tri-X on projects archived by institutions such as the Library of Congress, Smithsonian Institution, and Getty Research Institute.
Tri-X is a silver halide panchromatic emulsion featuring relatively large grain structure and high halation compared with lower-speed films used by studios like Paramount Pictures and Warner Bros.. It is nominally ISO 400/27° and is designed for push processing, a technique used by photographers on assignments for Life (magazine), Newsweek, and Der Spiegel. The film’s reciprocity behavior has implications for exposures made during events like the Apollo program photography, exhibitions at the Royal Photographic Society, and archival work for collections at the International Center of Photography.
Kodak produced Tri-X in multiple formats to serve professionals and amateurs, including 35mm cartridges used by photojournalists on assignments for The New York Times, 120 roll for medium-format cameras favored by photographers at Magnum Photos, and sheet film sizes used in studio and landscape work exhibited at the Metropolitan Museum of Art. Packaging evolved with offerings sold through retailers such as B&H Photo Video, Adorama, and outlets in cities like New York City, London, and Tokyo.
Tri-X is commonly developed in chemistry such as Kodak D-76, Ilford ID-11, and newer developers used by labs serving publications like National Geographic, Time (magazine), and editorial houses at Condé Nast. Push-processing (e.g., 1–2 stops) is a practice used by photographers covering events like the Stonewall riots or Woodstock to increase effective sensitivity, a technique referenced in manuals used at workshops by instructors from the International Center of Photography and courses at Rochester Institute of Technology. Darkroom techniques employing variable contrast papers at galleries like Tate Modern and conservation by institutions such as the Smithsonian Institution also shape final prints.
Tri-X is prized for its pronounced grain, strong midtone contrast, and resilience under varied lighting—qualities that shaped iconic images associated with figures such as Che Guevara, Muhammad Ali, and Jack Kerouac as published in outlets like Life (magazine), Esquire (magazine), and The Sunday Times Magazine. Its tonal range and halation contribute to aesthetics preferred by street photographers linked to movements represented at the Museum of Modern Art and the International Center of Photography, and by documentary projects archived at the Library of Congress.
Tri-X has been used to document major 20th-century events and personalities photographed by practitioners such as Henri Cartier-Bresson, Robert Frank, Diane Arbus, Garry Winogrand, Sebastião Salgado, and Ansel Adams for publications and exhibitions at institutions like the Getty Museum, Museum of Modern Art, and National Portrait Gallery. Photo essays produced for Life (magazine), Time (magazine), and The New Yorker often relied on Tri-X during field reporting on crises including the Vietnam War, civil rights marches with leaders like Martin Luther King Jr., and urban reportage in cities such as New York City, Paris, and São Paulo.
Compared with slower emulsions like Kodak Tri-X’s historical competitors such as films from Ilford Photo and specialty stocks used by studio photographers at Universal Pictures, Tri-X offers higher speed and distinct grain compared with low-ISO films used by landscape photographers like Ansel Adams and portraitists represented by galleries such as the National Portrait Gallery. Modern alternatives include several silver-halide emulsions produced by manufacturers such as Ilford Photo, Foma Bohemia, and specialty suppliers whose stocks vary in tonal response, grain, and processing latitude—factors considered by photographers working for agencies like Magnum Photos and publications including The New York Times.
Category:Photographic films