Seichi Mamiya and Tsunejiro Sugawara establish the company in Tokyo. Its later reputation will be built on systems for photographers who need a larger negative.
Designed for the scale of the negative
Mamiya made medium format a working photographer’s system
Founded in Tokyo in 1940 by camera designer Seichi Mamiya and financier Tsunejiro Sugawara, Mamiya built a long history around solving practical photographic problems. Its cameras moved between 35mm, 6×6 and 6×7, but the company became especially important in medium format: large negatives, modular accessories and bodies made to work all day.
The Mamiya Six folder used an unusual film-plane focusing arrangement; the Mamiyaflex TLRs brought automation to roll film; the RB67 and RZ67 became studio workhorses; and the 645 line offered a more portable system.
1940Mamiya Koki Seisakusho is founded in Tokyo.
1947The Mamiya Six folder introduces a distinctive focusing mechanism.
1970RB67 brings a rotating back to professional 6×7 work.
1975M645 makes medium-format SLR photography more portable.
1940–1960s · Small inventions, large frames
The camera designer who moved the film plane
Seichi Mamiya’s early Mamiya Six folding cameras focused by moving the film plane rather than the lens. That clever arrangement made the lens-to-film distance change while leaving the lens assembly fixed. It is a useful example of Mamiya’s character: a practical solution to the geometry of a camera, made in a format that produced generous negatives.
The company expanded through twin-lens reflexes and professional systems. The Mamiyaflex Automat A is often cited as the first Japanese TLR with automatic film advance, simplifying the ritual of moving to the next frame. These mechanisms were designed for photographers who needed rhythm and reliability, not just a beautiful object.
“A camera designer”Mamiya’s origin story describes Seichi Mamiya as a camera designer and co-founder.
1970s–2000s · Working systems
RB67, RZ67 and 645: different answers for different assignments
The RB67’s rotating back made it possible to switch between horizontal and vertical framing without turning the heavy camera. The RZ67 refined the system with electronic controls. In parallel, the 645 SLR format offered a lighter, faster alternative for weddings, editorial work and location photography, with interchangeable lenses, finders and backs.
Mamiya later developed autofocus medium-format cameras and digital backs, including the Mamiya ZD. The company’s camera production ended in the early 2010s, but its medium-format systems remain active in studios and on location. Their appeal is not only resolution: it is the ability to configure a camera around the assignment.
A longer view · people, choices and turning points
Made for the patient work of making a photograph
Mamiya was founded in Tokyo in 1940 by Seichi Mamiya and Tsunejiro Sugawara, and its cameras were built around a simple idea: some photographs deserve more room. The Mamiya Six folding camera made a large 6×6 negative portable; the C-series twin-lens reflexes let photographers change lenses in a camera type that usually offered less flexibility. Later, the RB67’s rotating back allowed a studio photographer to switch from horizontal to vertical framing without lifting and turning the whole camera. These are the sorts of details that rarely make a slogan, but anyone who has worked a long portrait session can understand why they mattered.
The M645 brought medium format closer to the familiar handling of an SLR, with a smaller frame and a more manageable system than the larger 6×7 cameras. Mamiya kept refining that path through the 645 Super and Pro series, then added autofocus and digital backs. The company’s cameras succeeded because they served a clear working need—portraiture, studio, fashion and commercial photography—rather than trying to replace every 35mm camera. Their larger negatives and adaptable backs came with weight, complexity and cost. A Mamiya was often a deliberate purchase for a photographer who knew what a bigger negative could do and had work that justified carrying it.
The later business story is about partnership and specialization, not a simple collapse. As the market for film cameras contracted, Mamiya’s medium-format expertise was increasingly tied to digital imaging and professional systems. Phase One invested in Mamiya Digital Imaging and later acquired the camera business assets, combining Mamiya bodies with digital-back and software development. That relationship helped the name remain in high-end medium format even as the old standalone camera company changed. Mamiya never had the global consumer reach of Canon or Nikon, but its influence was deep in studios and among photographers who valued the square or 6×7 frame. The brand’s success came from focus; its vulnerability came from how small and expensive that focus could be.
Milestones in Mamiya history
A folding 6×6 camera uses film-plane focusing.
Automatic film advance arrives in a Japanese TLR.
The rotating back lets a studio photographer switch orientation without turning the whole camera. This practical time-saver becomes a signature of the system.
A more portable medium-format SLR system debuts.
Digital capture enters the 645 ecosystem.
Interchangeable lenses give the twin-lens reflex unusual flexibility.
Phase One’s investment and imaging expertise extend Mamiya’s professional medium-format work as the mass market for film cameras contracts.