sigma-af-15-30mm-f-35-45-ex-dg

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Get information and user reviews for this lens from Amazon: Sigma 15-30mm f/3.5-4.5 EX DG IF Aspherical Ultra Wide Angle Zoom Lens for Nikon SLR Cameras

Thom Hogan

A bit of barrel distortion, edge sharpness issues on 35mm bodies at the extremes, and contrast/flare control problems keep this from being a top-of-the-line lens. If you’re expecting this lens to be equivalent to a wider Nikkor 17-35mm AF-S, downgrade your expectations a bit. Performance is a mixed bag. From a sharpness and contrast standpoint, the lens does a quite fine job. For it’s price, this lens performs quite well. “¦ READ FULL REVIEW

Other Sigma 15-30mm f/3.5-4.5 EX DG AF Reviews

Photo Zone (Canon Mount Tested)

The Sigma AF 15-30mm f/3.5-4.5 EX DG proved to be a worthy representative within the ultra-wide arena. It very sharp throughout the range without any more weakness in terms of resolution. On the downside there’re moderately strong barrel distortions at 15mm and visible lateral CAs (color shadows at the image borders). The build quality is very nice but it is a little unfortunate that Sigma chose to implement a noisy micro motor with an imperfect AF/MF switch rather than a HSM drive. The huge protruding front element may provide some design advantages but leaving the vulnerable front element unprotected feels a little uneasy. So at the end of the day it isn’t a perfect lens but still a highly interesting option specifically regarding sharpness. “¦ READ FULL REVIEW

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