10-01-2017, 08:38 AM
Quote:The Sigma 17-50mm f2.8 OS HSM is pretty close to what that Canon lens does, just cheaper, more sturdy and less heavy. That Canon 17-55mm is not a good example at all "for which one would invest in a system".And the Sigma is just a little less sharp, isn't it?

To answer toni's question: I'm happy with what's available for the cameras I use. However, I was always very curious about trying out an STF lens in the field, but intentionally never did, just to avoid temptation

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