| November | 1950 | > Founded |
| October | 1952 | > Established under the name of Taisei Kogaku Kogyo Co., Ltd. with a start-up capital of 2.5 million yens. |
| 1957 | > 135mm F4.5 interchangeable lens
developed for 35mm SLR cameras > World's first interchangeable mount system, "T"-mount developed for use with 35mm SLR cameras |
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| September | 1959 | > Head office and main plant are established in
Hasunuma, Omiya-city > The "Tamron" brand is registered as a trademark. |
| October | 1960 | > Industrial Optics Division started |
| 1961 | > Mass production of 95-205mm F6.3 telephoto zoom lens for 35mm SLR cameras started for general consumer use, the first in the industry, initiating broader use of zoom lenses | |
| 1965 | > 25mm F/1.9 and 16mm F/1.8 for 1” Vidicon are the first CCTV lenses by Tamron | |
| 1966 | > Production of lens test plate, ultra precision
lenses and prisms started > Succeeded in development of a series of lenses with Tamron "Adapt-A-Matic" interchangeable mount system that allows the use of automatic diaphragm control > Production of television broadcasting lenses for ITV begins |
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| May | 1969 | > Hirosaki plant is built in Aomori Prefecture > Production of interchangeable lenses for single-lens reflex cameras, television lenses, photocopier lenses, etc. begins > A branch office is established in New York |
| April | 1970 | > Company name changed to Tamron Co., Ltd. |
| 1971 | > Tamron 12.5-75mm C-mount 6x Zoom released (over 50,000 units sold) | |
| 1976 | > The "Tamron Adaptall Lens" range with built-in lightweight macro-mechanism and exclusive quick-focus system is introduced. | |
| 1979 | > U.S. subsidiary, Tamron Industries, Inc., is established in New York > "Super-Performance (SP)" series is introduced |
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| January | 1981 | > No. 2 Production building is completed at Hirosaki
plant > Production of the 6X zoom video camera lens begins |
| September | 1982 | > Tamron Vertriebsges, GmbH is established in Germany |
| November | 1982 | > Tamron Industries (Hong Kong) Ltd. is established |
| 1983 | > Integrated video camera lens is developed | |
| February | 1984 | > Optech Tamron Co., Ltd. is established in Namioka-machi, Aomori Prefecture |
| August | 1984 | > Tamron registers with the Tokyo Stock Exchange for over-the-counter trading |
| December | 1984 | > Capital increased to 3,835,000,000 yen |
| December | 1985 | > Fine-Giken Co., Ltd. is established to produce
molds and dies for precision moldings > "Fotovix"--Film video processor introduced |
| January | 1986 | > Molding plant is established in Owani-machi,
Aomori Prefecture > First Vari-Focal lens in CCTV, 2/3” 8- 16mm, released by Tamron |
| 1989 | > 1/2” 6-12mm Vari-Focal introduced | |
| November | 1990 | > Tamron celebrates its 40th anniversary |
| June | 1991 | > Optech Tamron Co., Ltd. is absorbed by Tamron Co., Ltd. |
| July | 1992 | > Tamron Mexico S.A. DE C.V. is established in Mexico |
| August | 1992 | > SLR zoom lens, Tamron SP AF35-105mm F2.8 received
the "European Lens of the Year '92-'93" Award > World's smallest and lightest high zoom ratio lens for 35mm SLRs, AF28-200mm F3.8-5.6 introduced > 1/3” 3.5-8mm Vari-Focal released |
| August | 1993 | > The AF28-200mm F3.8-5.6 received "European Lens of the Year Award '93-'94", the second year in a row for Tamron |
| November | 1993 | > The same zoom lens received the '93 Grand Award in the photographic product category in the "Best of What's New" in Popular Science magazine, USA |
| February | 1994 | > Takeyuki Arai, president/CEO, received Technical Achievement Award from PMDA (Photographic Manufacturers and Distributors Association, USA) and honored at PMA Convention in February |
| 1995 | > Acquired 75% capital of Bronica Co., Ltd., entering
into medium-format camera business > Powerful telephoto zoom lens AF200-400mm F5.6 LD received '95-'96 TIPA (Technical Image Press Association) "Best Lens in Europe" Award » AF200-400mm F5.6 LD received the "Best of What's New" in the photographic category in Popular Science magazine, USA |
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| April | 1995 | > Tamron (UK) Ltd. is established in the U.K. |
| July | 1995 | > Tamron launches medium-format camera business after acquiring shares of Bronica Co., Ltd. a long established manufacturer in the field |
| November | 1995 | > Hirosaki Plant acquires ISO 9002 certification |
| February | 1996 | > Launched the second generation model of the
AF28-200mm F3.8-5.6 Super with significantly reduced minimum focus distance capability
> AF28-200mm F3.8-5.6 Super received the "Best of What's New" in the photographic product category in Popular Science magazine, USA |
| February | 1997 | > AF28-200mm F3.8-5.6 Super received Grand Prix
of CAPA magazine, Japan > SP AF90mm F2.8 1:1 Macro received "European Lens of the Year '97-'98" Award > SP AF28-105mm LD Aspherical (IF) received the "Best of What's New" in the photographic product category in Popular Science magazine, USA > 1/3” 3.5-8mm F/1.4 Vari-Focal released |
| May | 1997 | > Tamron Industries (Hong Kong) is established in Hong Kong |
| July | 1997 | > Tamron Optical (Foshan) Co., Ltd. is established in Foshan, Quang Dong, Peoples Republic of China |
| August | 1997 | > The rugged SP AF 90mm F/2.8 macro lens is awarded European-Lens-of-The-Year '97-'98 |
| February | 1998 | > One Million Units Sold of 28-200mm > 1/3” 5-50mm Vari-Focal released |
| July | 1998 | > Bronica Co., Ltd. is merged into Tamron Co., Ltd. |
| February | 1999 | > AF28-300mm F/3.5-6.3 LD Aspherical (IF) Released |
| May | 1999 | > AF28-300mm F/3.5-6.3 received Camera Grand Prix Special Award '99; TIPA Best Lens in Europe '99; European Lens of the Year '99-'00; Popular Science Magazine's Best of What's New '99 |
| June | 2000 | > Tamron Fine-Giken Co., Ltd. is merged into Tamron Co.,Ltd. > Tamron France EURL is established |
| August | 2000 | > The AF28-200mm F/3.8-5.6 LD Super II Macro high
zoom ratio lens is awarded European-Lens-of-The-Year > The AF28-300mm F3.8-6.3 LD Super II Macro high zoom ratio lens is awarded European-Lens-Of-The-Year. |
| September | 2000 | > The 645 version rangefinder camera, RF645, is released > The SP 24-135mm F/3.5-5.6 wideangle zoom lens is released to commemorate Tamron's 50th anniversary > Head Office achieves ISO 9001 certification |
| November | 2000 | > Tamron 50th Anniversary of foundation commemoration
is held > Tamron's Hirosaki Plant achieves ISO 14001 certification |
| May | 2001 | > RF645 is awarded Camera Grand Prize 2001 Journalists Club Special Prize |
| July | 2001 | > AF28-200 XR Super Zoom (A03) is awarded "TIPA/Best
Lens in Europe 2001-2002" > RF645 is awarded "TIPA/Best Professional Photo Product in Europe 2001-2002" |
| August | 2001 | > RF645 is awarded "EISA/European Professional Camera of the Year 2001-2002" |
| October | 2001 | > Tamron Optical (Foshan) Co.,Ltd. acquires ISO9001 & ISO14001 certification. |
| November | 2001 | > Head Office acquires ISO14001 certification. |
| August | 2002 | > The AF28-300mm Ultra Zoom XR high zoom ratio lens is awarded European-Lens-Of-The-Year 2002-2003. |
| August | 2003 | > The SP AF28-75mm F/2.8 XR Di LD Aspherical (IF) Macro Zoom is awarded European-Lens-Of-The-Year 2003-2004. |
| November | 2003 | > Tamron's Namioka Plant and Owani Plant achieve ISO 14001 certification by being integrated into the Hirosaki Plant |
| January | 2004 | > Tamron's Namioka Plant and Owani Plant achieve ISO 9001 certification by being integrated into the Hirosaki Plant |
| June | 2004 | > SP AF28-75mm F/2.8 XR Di LD Aspherical [IF] Macro is awarded "CAPA/2003-2004 Lens Grand Prix in Japan" |
| January | 2005 | > AF28-300mm F/3.5-6.3 XR Di LD Aspherical [IF] Macro is awarded "2004 Nikkei Superior Products and Services Awards Nikei Business Daily Awards for Superiority" |
| May | 2005 | > AF18-200mm F/3.5-6.3 XR Di II LD Aspherical [IF] Macro is awarded "TIPA/Best Consumer Lens of the Year 2005 in Europe" |
| October | 2005 | > Tamron Optical (Shanghai) Co., Ltd is established |
| November | 2006 | > Tamron listed on the 1st Section of Tokyo Stock Exchange |