Ronkonkoma, New York--(Newsfile Corp. - August 19, 2025) - Sigma Corporation of America, the US subsidiary of Sigma Corporation (CEO: Kazuto Yamaki. Headquarters: Asao-ku, Kawasaki-shi, Kanagawa, ...
The Sigma 17-40mm F1.8 DC has a limited zoom range and some clear optical compromises. But even so, it’s a uniquely useful lens for APS-C users, thanks to its ultra-large aperture. The Sigma 17-40mm ...
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