Sigma 18-35mm F1.8 HSM Lens Hands On Review

I still can't quite believe that the Sigma 18-35 f1.8 lens exists but it does, and it is great!
Download the full resolution images: http://www.learningcameras.com/review...
With stunning build quality, out of this world F1.8 aperture, and a zoom range to go along with it. And after a week with this lens so far, the Sigma 18-35 1.8 has made a believer out of me. This lens was used on the Canon EOS 7D DSLR

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