traveler Offline Buy and Sell: On
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My thoughts on that is that there are 2 ways to go. Either a 70-300vr which can be very sharp, no speed demon but good end results overall, and will run you around $450. The other option if you wish to retain that typical 70-200 range and get great IQ but are willing to sacrifice a bit of focus speed, the Tamron 70-200 f2.8 LD is a great choice. I happen to own both and they both have their place. If you're looking to isolate the subject you won't beat the Tamron, no matter how much you spend on a zoom. Figure on about $700 for that choice. The Tamron is pretty sharp at the center but retains excellent sharpness in the corners. Wide open the Nikkor is a bit less so in the corners but has the sharpness in the center wide open, but that's not at f2.8 remember. The Tamron by f3.5 is scary sharp all across the frame (I've tested mine with resolution charts to determine this as well.) Nice build as well, but like I said, if you get the Tammy in lower light the focus slows considerably so it's not a low light sports lens by any means. In good light it does just fine.
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