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  1. John A Roberts

    Inside Sigma's Aizu Factory

    A set of seven posts by Robert Olech of LensTip, about an earlier visit to Sigma’s Aizu factory can be found at: https://www.lenstip.com/142.1-article-A_trip_to_Sigma_lens_factory_in_Aizu_Introduction.html The posts concentrate on the lens production process, and comprise: - Introduction -...
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