http://www.dpreview.com/news/2012/01/27/Michihiro_Yamaki_Sigma_founder_dies
It is with great sadness that we receive the news that Sigma's founder and CEO Michihiro Yamaki has died of liver cancer at the age of 78. Yamaki founded Sigma in 1961 and was still head of the company when it celebrated its 50th anniversary in 2011. In that time he took it from being a maker of converter lenses to one of the largest independent lens makers in the industry. His passion for photography also saw Sigma create one of the first large sensor compact cameras. Everyone at dpreview.com would like to offer our deepest condolences to his family at this sad time.
