11 Facts About Sigma Corporation

Sigma Corporation is a Japanese company, manufacturing cameras, lenses, flashes and other photographic accessories.

All Sigma Corporation products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan.

Sigma Corporation has made lenses under the Quantaray name, which have been sold exclusively by Ritz Camera.

Similarly, Sigma Corporation lenses were sold exclusively by the former Wolf Camera, but following the merger of Wolf and Ritz, both brands can be purchased.

In September 2018 Sigma Corporation became one of the founding members of the L-Mount Alliance; it announced that it will cease to develop SA-mount cameras and instead use Leica's L-Mount.

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Sigma Corporation is the world's largest independent lens manufacturer and is a family-owned business.

Sigma Corporation has made a number of film SLR cameras, including the SA-300, SA-5, SA-7 and SA-9.

Sigma Corporation produces the DP series of high-end compact digital cameras.

In February 2016, Sigma announced two new mirrorless cameras—the SD Quattro and SD Quattro H Both cameras use the full-depth Sigma SA mount, allowing the use of existing SA-mount lenses, and use Foveon Quattro sensors.

Sigma Corporation produces the Sigma Corporation Photo Pro software for post-production of their camera's.

In 2011, Nikon filed a suit against Sigma Corporation, alleging it had violated patents relating to Nikon's "Vibration Reduction" image stabilisation technology.