Sigma 10-20mm F3.5 EX DC HSM Canon

Sigma 10-20mm F3.5 EX DC HSM Canon

Released March 2009

Sigma 10-20mm F3.5 EX DC HSM Canon
Sigma 10-20mm F3.5 EX DC HSM Canon
COMPARISON SELECTION (3 selected items max.)
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in P-Mpix
Focal:10 - 12 - 14 - 17 - 20
Aperture: 3.5 - 4 - 5.6 - 8 - 11 - 22
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Focal:10 - 12 - 14 - 17 - 20
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in EV

in EV
Focal:10 - 12 - 14 - 17 - 20
Aperture: 3.5 - 4 - 5.6 - 8 - 11 - 22
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in micrometer

Sigma 10-20mm F3.5 EX DC HSM Canon Review

Review of the Sigma 10-20mm F3.5 EX DC HSM Canon lens

 This lens was specially designed for APS-C-format cameras. Three of its four aspherical lenses are made of low-dispersion glass elements — specifically, 2 ELD (extraordinary low dispersion) lenses and 1 SLD (special low dispersion) lens.Its minimum focus distance is 24cm, regardless of focal length, and the maximum reproduction ratio is 1: 6.5.Tests and reviewsSigma 10-20mm F3.5 EX DC HSM Canon on a Canon EOS 7D cameraWhat we liked:Good distortion correction (especially for a wide-angle zoom).Very reasonable vignetting at maximum aperture.Excellent resolution for this type of lens.What we didn’t like:Significant chromatic aberrations.The weight.ComparisonSigma 10-20mm F3.5 EX DC HSM