![]() The Nikon 24-70mm f/2.8 achieves better scores on the whole focal and aperture ranges.Ħ1 lp.mm for Nikon and 57 lp.mm for Sigma, in the center, the Sigma lens achieves pretty good results but the Nikon lens stays ahead. The Nikon 24-70mm takes clearly the lead on the DxOMark Score: There is almost no competition on this one, see the full comparison here. For the Canon mount: Sigma 17-70mm F2.8-4.5 DC Macro HSM Canon vs Sigma 17-70mm F2.8-4 DC Macro OS HSM Canon mounted on a Canon EOS 500DĬomparing the 24-70mm f/2.8 by Nikon vs the 24-70mm f/2.8 by Sigma (Nikon mount) both mounted on a Nikon D3x.For the Nikon mount: Sigma 17-70mm F2.8-4.5 DC Macro HSM vs Sigma 17-70mm F2.8-4 DC Macro OS HSM, both mounted on a Nikon D300s.We have a series of comparisons of this lens (Canon and Nikon) versus its previous version with the same mounts. How is the Sigma 17-70 OS HSM compared to its previous version? Sigma 17-70mm F2.8-4 DC Macro OS HSM Nikon mounted on a Nikon D7000. Sigma 17-70mm F2.8-4 DC Macro OS HSM Canon mounted on a Canon EOS 7D vs. This lens scores pretty close to its Nikon mount version and all the remarks to be made are along the same lines, except for resolution: the Canon version is a bit higher when mounted on a Canon EOS 7D than the Nikon version when mounted on a Nikon D7000. ![]() See results for this lens when mounted on a Canon EOS 7D ![]() Unfortunately the resolution is not homogenous in the field, even if this lens provides a good sharpness at the center, the resolution decreases very rapidly in the field. Looking further though, the DxOMark score map indicates a pretty good homogeneity on the whole focal range, nevertheless, the score is perhaps a bit too low as well.īoth the vignetting and chromatic aberration are pretty well controlled on the whole focal range even on its widest aperture. With these measures in mind, we can say that even at its maximum level of quality, obtained at 17 mm f/2.8 this score remains pretty low. To see the data in detail see the performance of the Sigma 17-70 OS HSM on a Nikon D300, and on a Nikon D7000
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