18-135 STM vs. 17-85IS

I agree about the 15-85 being the best of the three lenses discussed. It's my walk-about lens for my 7D. For my 5D Mk II, I use the 24-105 f/4.

The build and image quality of the 17-85 is far from spectacular.

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Steve Dell
Tucson AZ
www.stevedellphotography.com