Sigma has announced the passing of Sigma Corporation’s founder and CEO Michihiro Yamaki. He died of liver cancer on 18th January at the age of 78. In 1961, Yamaki developed the first-ever rear attached lens converter and founded Sigma to commercialise the product. At that time, most photo enthusiasts believed that a lens converter could only be attached to the front of a camera lens and the 27-year-old optical engineer turned conventional optical theory on its head. In the next five decades, Yamaki grew the family-owned organisation into a leading researcher, developer, manufacturer and service provider of lenses, cameras and flashes. The company is now known as the largest, independent SLR lens manufacturer in the world, producing more than 50 current lens models. Sigma Corporation celebrated its 50th anniversary in 2011 with Yamaki still at the company’s helm.
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