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Remember when Sony revealed its E-mount specification? Sigma needs less than a year to come up with its new E-mount lenses. In early January 2012, from the CES 2012 in Vegas, the company introduced two new Digital Neo (DN) lenses for Micro Four Thirds mounts for Olympus and Panasonic, and E-mount for Sony NEX-series cameras. The lenses include the 30mm F2.8 EX DN and the 19mm F2.8 EX DN.
