Quote:
Originally Posted by Canis Vulpes
With lenses you really do get what you pay for....
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Although some of what you pay for may be the brand name or a white finish. I use mainly sigma EX lenses, which are substantially cheaper than the canon L equivalents, and where I have done head-to-head comparisons, there has been very little if any difference in image quality. (This was between the 70-200 f2.8 models in the two ranges)
I actually prefer my sigma 28-70 over my canon 24-105L when used over the 28-70 range.