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Old Feb 3, 2016, 6:38 PM   #1
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Default Buying Within The Next Wk Or SO

Cannot afford the Canon 70-200 f2.8 IS ii

Its either the Sigma 70-200 f2.8 APO DG HSM OS OR
Tamron 70-200 f2.8 DI VC USD

I know I had other threads about these 2 lens but once again would like feedback so I can make a decision

Which in your opinion has fastest and quietiest auto focus among other things
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Old Feb 3, 2016, 6:56 PM   #2
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From SLRGear.com, for the Sigma:
Using Sigma's HSM autofocusing technology, autofocus results are quick and near-silent, taking just over 1 second to go from close-focus to infinity. Point to point focusing happens very quickly, and the front element does not rotate during autofocus operations. Autofocus results can be overridden at any time by simply turning the focusing ring.
From SLRGear.com, for the Tamron:
Autofocus is conducted electronically, without the use of a mechanical screw. It takes less than one second to focus from infinity to closest focus, and it's very quiet as it does so. The front element doesn't rotate during focus operations, making the use of a polarizing filter that much easier.
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