Making 'Art': We go inside Sigma's lens factory
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Making 'Art': We go inside Sigma's lens factory

Mr Yamaki's philosophy for Sigma is inherited from his father, Michihiro Yamaki, who died in 2012. It can be summed up in four words: 'small office, big factory'. The great majority of Sigma's employees in Japan are involved directly in creating its products, and the company maintains a relatively small administrative staff.

These boxes contain the raw material for Sigma's lenses - glass. Sigma uses glass supplied domestically by Hoya, and the stockroom is full of boxes and boxes of it. Because Sigma's supply chain is mostly local (unlike larger manufacturers who outsource components and assembly across the globe), the factory was able to return to limited production within only two days of the devastating earthquake that struck Japan in 2009.