Sigma 150-500mm f5-6.3 OS review
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The Sigma 150-500mm f/5-6.3 DG OS HSM is a stabilized super-telephoto zoom lens; indeed it’s one of only two stabilized telephoto zoom lenses reaching 500mm focal length, the other being Sigma’s own 50-500mm 4.5-6.3 DG OS HSM. The 150-500mm is available for Canon, Nikon, Sigma, Sony and Pentax mounts. Announced January 2008, it’s the longer…
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