Sigma 17-70 OS or Canon 17-85 IS lens?

Started Oct 30, 2011 | Discussions thread
OP BobT Forum Pro • Posts: 13,193
Re: not easy, but if this helps...

mg_k,

In samples that I've seen of both of these lenses, they both appear to produce images that are just fine to my eye. What am I missing?

I am a little concerned about a somewhat common mechanical flaw inherent in the Canon lens. A zooming malfunction around the wide end of the zoom range. I'm also aware of the the IQ reported to be a smidge better in the earlier non-OS version of the Sigma. So neither is without their respective alleged flaws.

The Tammy 17-50 is just not long enough for me. Both lenses in question fit my desired zoom length and their prices are right. The 15-85 is just to pricy for me.

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