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Sigma Corporation is a composite optical machinery manufacturer founded in 1961. All products are completely “Made in Japan”, at our Aizu factory, our only production base and where its integrated production embraces everything from molds to parts. For half a century, as a global company as well as an independent brand, Sigma has produced not only various interchangeable lenses but has shown innovation in the development and production of assorted optical machinery.

Offices located in

Japan

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