10 and 12 researched events on one shared scale. Fujifilm 1934–present, Mamiya 1940–present.
The axis stretches where either maker has research and collapses where neither does, so a year sits opposite the same year on both. Event counts differ because research depth differs, not because one company did less.
Fuji Photo Film Co., Ltd. was established in January 1934 after the photographic-film operations of Dainippon Celluloid were separated under a government industrial plan. The Ashigara factory began film, photographic paper, and dry-plate production. An Odawara site was added in 1938 as the company widened its materials and chemical base.
The Odawara works began optical-glass production in March 1940 and lens production the following month. More than a dozen glass types were made by the end of that year. The first company-built camera was a military aerial-observation camera, not a civilian Fujica. In 1944 Fuji acquired Enomoto Kogaku Seiki and formed Fuji Photo Optical, creating a separate precision-optical company within the group.
Corporate history · Optical glass, photographic lenses, and optical equipment
Seiichi Mamiya and Tsunejiro Sugawara established Mamiya Koki Seisakusho in Tokyo in 1940 and began producing the Mamiya Six. The folding 120-film rangefinder used Mamiya's back-focusing mechanism, moving the film plane for focus while the lens remained fixed. The Japanese Camera Museum reports that the camera remained in production during wartime restrictions.
Mamiya Camera Exhibition: The History of Invention and Ingenuity · Corporate history · About Mamiya
Mamiya rebuilt postwar production and in March 1946 established a Setagaya factory to make shutters and lenses in-house. Early postwar Mamiya Six cameras nevertheless appear with several lens and shutter combinations because supplies were unstable. The factory became Setagaya Koki Co., Ltd. in July 1950, and Mamiya Koki Seisakusho was reorganized as Mamiya Koki Co., Ltd. that December.
Mamiya Camera Exhibition: The History of Invention and Ingenuity · Corporate history · Mamiya 6 Model V (1953)
The Fujica Six IA appeared in April 1948 as the first commercial Fujica still camera. Initial bodies and shutters were supplied externally, and production delays exposed the difference between group capability and complete vertical integration. Camera manufacture was consolidated at Fuji Photo Optical in 1950. Odawara developed new high-index and rare-earth optical glasses and produced Crystar, Fujinar, and other lenses; the 1954 Leica-thread Fujinon 50mm f/1.2 is an early documented use of the Fujinon name. In 1957 Odawara's lens-production equipment and technology, with some staff, moved to Fuji Photo Optical.
Fujifilm Camera Exhibition · Postwar cameras, optical glass, and lenses
The company expanded into twin-lens reflex, 16mm subminiature, and 35mm cameras while continuing the Mamiya Six line. Its 1957 Mamiyaflex C Professional made the entire paired-lens and shutter board interchangeable and used bellows focusing for close work. The Mamiya Magazine 35, also dated 1957 by the Japanese Camera Museum, carried a Sekor 50mm f/2.8 and used an interchangeable film chamber.
Mamiya Sekor Guide · Mamiya Camera Exhibition: The History of Invention and Ingenuity · Mamiya TLR System Summary
Fujica expanded through 35mm rangefinders and automatic-exposure cameras, including the 1962 Fujica 35 Auto M, the 1963 Fujica Half, and the 1967 Compact 35. Fuji also developed the Single-8 cartridge and camera system, introduced in 1965 after its earlier Rapid-8 approach was abandoned in response to Kodak's Super 8. The 1968 G690 began a professional 6×9 rangefinder branch. Fuji Photo Optical participated across the camera, lens, and motion-picture programs.
Fujifilm Camera Exhibition · Automatic-exposure, half-frame, and compact cameras · Professional cameras and Fujinon lenses · Development of the Single-8 system
Mamiya introduced the Press camera in 1960 and developed a broad system of roll-film backs, sheet and instant-film accessories, and lenses. The C-series TLR evolved through C2, C3, C22, C33, C220, and C330 branches. Mamiya also sold 35mm SLRs using the Praktica/Pentax M42 screw mount and later proprietary mounts. A new Urawa factory opened in 1963; Setagaya Koki was absorbed that June, and its Tokyo factory operation was integrated into Urawa in 1964.
Mamiya Sekor Guide · Mamiya Camera Exhibition: The History of Invention and Ingenuity · Mamiya TLR System Summary · Corporate history
The Fujica ST701 of 1970 opened the company's M42 SLR family. The ST801 followed in 1972 with open-aperture metering, a 1/2000-second top speed, and EBC Fujinon lenses; the electronically controlled ST901 arrived in 1974. Fuji's Electron Beam Coating first reached a marketed lens on the Single-8 Z800 zoom in December 1971, then interchangeable ST801 lenses in September 1972, medium-format lenses in 1973, and large-format lenses from 1974. The fixed-lens GW690 of 1978 simplified the earlier interchangeable-lens G system.
Professional cameras and Fujinon lenses · Fujica SLR cameras and Electron Beam Coating
Mamiya established a production subsidiary at Saku in 1970 and released the RB67 Professional that year. Its rotating film magazine changed between horizontal and vertical 6×7 framing without turning the camera, while body bellows handled focusing and lenses supplied leaf shutters. In 1975 the M645 opened a smaller 6×4.5 SLR system using a focal-plane shutter; the M645 1000S followed in 1976 with a 1/1000-second top speed.
Mamiya Camera Exhibition: The History of Invention and Ingenuity · Mamiya RB67 Pro-S instruction manual · Corporate history
Mamiya continued professional medium-format development while changing its 35mm strategy through NC, ZE, and Z-series proprietary mounts. The RZ67 Professional arrived in 1982 as an electronically integrated development of the RB concept. Contemporary patent records assigned to Mamiya document active optical calculation, including zoom-lens work, rather than a catalog built entirely from external designs.
Mamiya Sekor Guide · Mamiya Camera Exhibition: The History of Invention and Ingenuity · Mamiya RZ67 Pro II instruction manual · JPS58100115A — Zoom lens
Fujica shifted its 35mm SLRs from M42 to a proprietary bayonet in 1979. The export STX-1 and AX-1, AX-3, and AX-5 families used Fujica X-mount and EBC X-Fujinon or X-Fujinon lenses with different automatic-diaphragm and exposure capabilities. This mount has a 43.5mm register and no direct relationship to the digital Fujifilm X mount introduced decades later. Screw-mount SLR production ended during the transition, and the Fujica 35mm SLR branch ended in the mid-1980s.
Osawa & Co., Mamiya's important international distributor and shareholder, sought court-supervised rehabilitation in February 1984; Mamiya Koki filed on 5 March. Government records treated both as major failures with effects on suppliers and employment. Mamiya's 35mm camera line ended during the reorganization, while its professional medium-format systems continued.
Cabinet response concerning the failures of Osawa & Co. and Mamiya Koki · Mamiya Z-Series 35mm Cameras
Fuji introduced the one-time-use QuickSnap in 1986 as film with a lens, creating a mass-market camera category tied directly to film manufacture and processing. The GX680 also appeared in 1986 as a 6×8 studio system with a revolving back, view-camera-style movements, and a thirteen-lens GX range. In 1988 Fuji demonstrated the FUJIX DS-1P, a prototype camera designed to record digital image data to a memory card; a commercial electronic still-camera line followed rather than the prototype itself entering ordinary retail sale.
Fujifilm Camera Exhibition · 90 years of Fujifilm history · The History of Fujinon, Episode 6: GX680 · History of lens-fitted film and QuickSnap
The New Mamiya 6 appeared in 1989 as an electronically controlled 6×6 interchangeable-lens rangefinder with a collapsible lens mount. The RB67 Pro SD followed in 1990. In 1992 Olympic Co., Ltd. absorbed Mamiya Koki; the combined company became Mamiya-OP in 1993. Camera and lens manufacturing subsidiaries Mamiya and Shibata Mamiya were combined at Saku in 1994.
Mamiya Camera Exhibition: The History of Invention and Ingenuity · Corporate history
Mamiya extended the rangefinder concept to the 6×7 Mamiya 7 in 1995 and developed the 645AF platform for film and digital backs. The Mamiya ZD, shown in 2004 and released in 2005, used a large 36×48mm CCD and Mamiya 645AF lenses. Patent records from the period continue to show optical-design work assigned to Mamiya-OP.
Mamiya Camera Exhibition: The History of Invention and Ingenuity · JP2004102100A — Retrofocus type super wide-angle lens
The 1998 TX-1 panoramic rangefinder, sold internationally as the Hasselblad XPan, switched between 24×36mm and 24×65mm frames on the same roll and used jointly developed Fujinon lenses. Fuji's professional digital and medium-format work also converged with Hasselblad in the GX645AF program. Contemporary corporate reporting described the GX645AF as jointly developed, with Fuji Photo Optical integrated into manufacture and marketing.
Annual Report 2003 · The evolution of Hasselblad lenses · XPan · Development of the TX-1
Fuji Photo Optical changed its name to Fujinon Corporation in October 2004 to unify corporate and brand identity. In 2006 the Fuji group adopted a holding-company structure: FUJIFILM Holdings became the parent and FUJIFILM Corporation the main operating company. Fujinon Corporation merged into Fujifilm Corporation in July 2010. A parallel manufacturing reorganization created Fujifilm Optics from Fujinon Mito and Fujinon Sano, preserving specialist production in the group under new legal names.
Annual Report 2010 · Annual Report 2005 · Corporate history · Fujifilm Optics company history
Mamiya-OP transferred its optical-equipment business, including staff, facilities, inventory, trademarks, and patents, to the newly formed Cosmo Digital Imaging business in September 2006. The camera operation soon used the Mamiya Digital Imaging name. Mamiya-OP's own corporate chronology states that it withdrew from optical business, so the continuing camera brand and the continuing Mamiya-OP corporation must not be treated as the same enterprise after this transfer.
Phase One made a major investment in Mamiya Digital Imaging in 2009 and took strategic leadership in research, development, marketing, and distribution. Mamiya, Phase One, and Schneider Kreuznach then announced shared design, development, manufacturing, and delivery of leaf-shutter lenses for the 645DF platform. In 2012 Mamiya Digital Imaging and Leaf Imaging consolidated product development, marketing, and support under the Mamiya Leaf brand while retaining Mamiya labels on cameras and lenses.
Schneider Kreuznach, Phase One, Mamiya Digital Imaging Cooperate to Drive Innovations in Medium Format Digital Lenses · Phase One Invests in Mamiya Digital Imaging · Mamiya and Leaf brands and lineups consolidate
The fixed-lens X100 appeared in 2011 and the interchangeable-lens X-Pro1 in 2012, establishing the present Fujifilm X system and XF Fujinon lens line. The larger-format GFX system followed in 2017 with GF lenses. Fujifilm Optics continues camera, interchangeable-lens, broadcast, cinema, binocular, projector, and industrial-optics production. This living Fujinon identity is a continuation of group optical capability, but modern X and G mounts require their own catalog branches rather than being attached to old Fujica X or film-era serial assumptions.
Contributing to photography culture · Fujifilm GFX system history · Fujifilm Optics company profile · Optical devices overview
Phase One acquired Mamiya Digital Imaging's assets in December 2015 and established Phase One Japan, taking control of medium-format camera, central-shutter, and lens design and development. The Phase One XF had already launched that June as a new Phase One-designed platform. Current Phase One material lists Saku as a regional office and maintains support or compatibility information for selected Mamiya equipment, but the current product system is Phase One-branded and centers on Schneider Kreuznach lenses. Axcel has held a majority investment in Phase One since 2019.
Which products can I get help with from Phase One and Mamiya-Leaf Technical Support · Leaf Shutter Lenses · Phase One · About Phase One · Phase One Japan established and succeeds Mamiya optical business · Phase One Unveils the Future of High-End Photography
