Carl Zeiss AG, branded as ZEISS, is a German manufacturer of optical systems and optoelectronics, founded in Jena, Germany in 1846 by optician Carl Zeiss. Together with Ernst Abbe and Otto Schott he laid the foundation for today's multi-national company. The current company emerged from a reunification of Carl Zeiss companies in East and West Germany with a consolidation phase in the 1990s. ZEISS is active in four business segments with approximately equal revenue in almost 50 countries, has 30 production sites and around 25 development sites worldwide.
The Tessar is a photographic lens design conceived by the German physicist Paul Rudolph in 1902 while he worked at the Zeiss optical company and patented by Zeiss in Germany; the lens type is usually known as the Zeiss Tessar.
Cosina Co., Ltd. is a manufacturer of high-end optical glass, optical precision equipment, cameras, video and electronic related equipment, based in Nakano, Nagano Prefecture, Japan.
Rolleiflex is the name of a long-running and diverse line of high-end cameras originally made by the German company Franke & Heidecke, and later Rollei-Werke.
Contax began as a German camera model in the Zeiss Ikon line in 1932, and later became a brand name. The early cameras were among the finest in the world, typically featuring high quality Zeiss interchangeable lenses. The final products under the Contax name were a line of 35 mm, medium format, and digital cameras engineered and manufactured by Japanese multinational Kyocera, and featuring modern Zeiss optics. In 2005, Kyocera announced that it would no longer produce Contax cameras. The rights to the brand are currently part of Carl Zeiss AG, but no Contax cameras are currently in production, and the brand is considered dormant.
The Contax N Digital was a six-megapixel digital SLR camera produced by Contax in Japan. The camera was announced in late 2000, and began to be sold in spring 2002, after several delays. The camera received mixed reviews from the press, and was withdrawn from the market within a year of its introduction.
The Pentax K-mount, sometimes referred to as the "PK-mount", is a bayonet lens mount standard for mounting interchangeable photographic lenses to 35 mm single-lens reflex (SLR) cameras. It was created by Pentax in 1975, and has since been used by all Pentax 35 mm and digital SLRs and also the MILC Pentax K-01. A number of other manufacturers have also produced many K-mount lenses and K-mount cameras.
The Contaflex series is a family of 35mm leaf-shuttered SLR cameras, produced by Zeiss Ikon in the 1950s and 1960s. The name was first used in 1935 on a 35mm Twin-lens reflex camera, the Contaflex TLR also by Zeiss Ikon, the -flex part in the name referring to integral mirror for the viewfinder. The first models, the Contaflex I and II have fixed lenses, while the later models have interchangeable lenses, and eventually the Contaflexes became a camera system with a wide variety of accessories.
Minolta AF 50mm f/1.7 is a discontinued lens with autofocus that was produced by Minolta for the company's A-mount from 1985 through 2006. It is still in use today by users of digital and film SLRs by Minolta and Sony. The relatively large maximum aperture allows the photographer to take shots indoors even when operating at ISO 100 - 200.
The Fujifilm X-mount is a type of interchangeable lens mount designed by Fujifilm for use in those cameras in their X-series line that have interchangeable-lenses. These lenses are designed for 23.6mm x 15.6mm APS-C sensors.
The Sigma 50mm f/1.4 DG HSM Art lens is a professional-level fixed focal length camera lens made by Sigma Corporation. It was announced at CES in January 2014 and immediately became highly anticipated amid reports that Sigma was not aiming to compete against Canon or Nikon's 50mm prime lenses but rather the newly released Zeiss Otus 55/1.4, a lens costing US$4,000. Retail prices for the Sigma 50mm lens had not yet been announced but it was initially expected that it would sell for around US$1,350. However, when official pricing was announced on April 11, 2014, the retail price was even lower: US$950.
The Sony Zeiss Distagon T* FE 35mm F1.4 ZA is a large-aperture, wide-angle full-frame prime lens for the Sony E-mount. It was announced by Sony on March 4, 2015.
The Sony Zeiss Vario-Tessar T* FE 16-35mm F4 ZA OSS is a constant maximum aperture wide-angle full-frame (FE) zoom lens for the Sony E-mount, announced by Sony on September 15, 2014.
The Zeiss Batis Sonnar T* 1.8/85mm is a full-frame (FE) portrait prime lens for the Sony E-mount, announced by Zeiss on April 22, 2015.
The Sony Zeiss Vario-Tessar T* E 16-70mm F4 ZA OSS is a constant maximum aperture zoom lens for the Sony E-mount, announced by Sony on August 27, 2013.
The Sony Carl Zeiss Sonnar T* E 24mm F1.8 ZA is a wide-angle APS-C prime lens for the Sony E-mount, announced by Sony in December 2011.
The Sony Zeiss Vario-Tessar T* FE 24-70mm F4 ZA OSS is a constant maximum aperture full-frame (FE) zoom lens for the Sony E-mount, announced by Sony on October 16, 2013.
The Sony Zeiss Sonnar T* FE 55mm F1.8 ZA is a standard full-frame prime lens for the Sony E-mount. It was announced by Sony on October 16, 2013.
The Zeiss Batis Sonnar T* 2.8/135mm is a full-frame (FE) telephoto prime lens for the Sony E-mount, announced by Zeiss on April 24, 2017.
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