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The Sigma 50-100mm F1.8 is a bit of a rarity. It's a fast telezoom designed specifically for Canon, Nikon and Sigma APS-C bodies, providing 75-150mm equivalent range (80-160mm on Canon bodies). Canon and Sigma mount versions should also work on Sony E-mount cameras with Sigma's new MC-11 adapter. With Sigma's 'Art' designation, it's built to the company's highest standards and includes a redesigned Hyper Sonic Motor and nine rounded aperture blades. We were lucky enough to get our hands on a pre-production model while we were in Japan for CP+ 2016, and didn't waste any time putting it to work.
Due to our limited time with the lens, samples aren't as varied as we'd have liked, but we'll be adding more to this gallery once we get one back in. For now, enjoy a number of aperture progressions at various focal lengths to get an idea of edge-to-edge sharpness, chromatic aberration, and vignetting performance. Our preliminary thoughts are that sharpness and contrast are impressive for a F1.8 zoom, with center sharpness nearing its peak by F2.8, while edge sharpness appears maximal by F5.6.
See our Sigma 50-100mm F1.8 DC HSM Art real-world sample gallery
from Articles: Digital Photography Review (dpreview.com) http://ift.tt/1nxKF9o
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