Sigma is beefing up its lens library at this year's Photokina trade show with five new lenses that stretch across the spectrum of focal lengths. From the wide-angle 28mm f/1.4 Art lens to the bazooka-sized 60-600mm Sports lens, there's a lens for almost every shooting scenario. Most of the lenses in this collection will have native support for Nikon, Canon, and Sigma lens mounts as well as the Sony E mount for the 28mm and 40mm. 

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