imagemeister wrote:
I do not have one, but I do know many complain about the AF accuracy. Personally, I roll with the Sigma 17-70 2.8-4 and a Canon 70-300 on Canon and very happy.
Strictly optically, I think either Sigma 18-35 or 17-70 will be an upgrade you will notice - just my educated opinion.
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Using it close in, mostly indoors and within 10-15 ft. I do find a much higher amount of AF inaccuracy than I would prefer. However, in most real world situations especially outdoors or in larger indoor venues where I'm shooting at greater distances than 10 or 15 feet I rarely seem to have AF issues, especially If I'm stopped down a bit. I'm a Canon shooter and my understanding is that this may be a more common issue on Canon bodies than on Nikons.