Canon 15-85 vs Sigma 17-70

Started Dec 26, 2011 | Discussions thread
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Erik271
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Canon 15-85 vs Sigma 17-70
Dec 26, 2011

I want a good walk around lens when I am packing light or just out and about. It will serve on my T2i as well as T1i IR. My main camera is a 5DII with many fast lenses. I understand that these are similar (not identical) lenses and that 15mm is appreciably wider than 17mm and also that the 15mm more on the long end is quite useful. My main question is how good is the Sigma at f2.8 and how do the 2 lenses compare for sharpness, color and contrast. I have read much about the 15-85 but not found as much about the 17-70. Seeing as it is not my main set up, saving a few $$ is ok with me. I have seen many good and favorable reviews about each lens, but not a comparison between them. I have considered and ruled out the 18-135, 18-125, 18-200 and want more range than the 18ish-55ish lenses and the 15-85 Canon is clearly superior to the 17-85. Something similar to the 24-105L but in APS. Thanks

 Erik271's gear list:Erik271's gear list
Olympus XZ-1 Canon EOS 5D Mark II Canon EOS 500D Canon EOS 6D Canon EOS 100D +19 more
Canon EOS 500D (EOS Rebel T1i / EOS Kiss X3) Canon EOS 550D (EOS Rebel T2i / EOS Kiss X4) Canon EOS 5D Mark II
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