MOST RELEVANT RESULT(S) FOR :


 

Sigma 17-35mm F2.8-4 EX DG HSM review - an old, cheap, and... great wide-angle lens!

Wednesday February 01 2012

Sigma 17-35mm F2.8-4 EX DG HSM review - an old, cheap, and... great wide-angle lens!

DxOMark continues its exploration of the past with this very good wide-angle lens that Sigma first produced for Canon mounts in 2003, and while we’re at it, we’ll use this opportunity to compare it with one of the most best-known lenses on the market, the Canon EF 16-35mm f/2.8L II USM.

First of all, let’s take a look at the results for the Sigma lens by itself:

Sigma 17-35mm F2.8-4 EX DG Aspherical HSM Canon mounted on a Canon EOS 1Ds Mark III

Sigma 17-35mm F2.8-4 EX DG Aspherical HSM Canon mounted on a Canon EOS 1Ds Mark III

With a DxO Mark Score of 20, this wide-angle zoom is indeed a good-quality lens.

Strong pointsWeak points
Good sharpnessSignificant vignetting at maximum aperture
Good correction of chromatic aberrationRather weak transmission
Very reasonable price 
An acceptable weight 

Comparison

Sigma 17-35mm F2.8-4 EX DG Aspherical HSM Canon vs Canon EF 16-35mm f/2.8L II USM mounted on a Canon EOS 1Ds Mark III

Sigma 17-35mm F2.8-4 EX DG Aspherical HSM Canon vs Canon EF 16-35mm f/2.8L II USM mounted on a Canon EOS 1Ds Mark III

Both lenses achieve the same DxOMark overall score of 20. When looking at the results a bit more closely, the Sigma’s quality seems actually somewhat lower (see also the DxOMark score map).

In fact, the Sigma’s performance drops off a bit for the greatest focal lengths (starting at 28 mm), due to the fact that the Sigma doesn’t maintain a constant f/2.8. To compensate for the loss of brightness, one must augment the ISO sensitivity - and consequently, noise goes up as well.

Sigma 17-35mm F2.8-4 EX DG Aspherical HSM Canon

The advantagesThe disadvantages
Homogenous sharpness in the field at maximum apertureAn aperture that varies depending on the focal length
Good correction of chromatic aberrationsVery heterogenous optical quality
A truly affordable lens in terms of price 

Canon EF 16-35mm f/2.8L II USM

The advantagesThe disadvantages
Homogenous optical qualityGood sharpness only in the first third of the field
With a constant aperture, the Canon is brighterVery strong chromatic aberrations chromatiques in the corners at 16mm
 High price

Conclusion

The Sigma 17-35mm F2.8-4 EX DG Aspherical HSM Canon is a very good lens for the price. While each lens has its strong and weak points, the Sigma quite frankly manages to hold its own against its pricier Canon rival.