Sigma 70-200mm DG DN OS Sports initial impressions

Product photos: Carey Rose

Sigma’s latest release, the 70-200mm F2.8 DG DN OS Sports, provides a new constant-aperture telephoto zoom for users of Sony, Panasonic, Leica and Sigma full-frame mirrorless cameras. The lens itself isn’t much of a surprise, what with the existing ‘pre-announcements’ that have been floating around the web for a while now, but we’ve been able to get our hands on a copy to
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