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      07-31-2012, 05:37 PM   #2
Chewy734
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Drives: 2006 BMW 330i ZPP, ZSP
Join Date: Dec 2008
Location: LA, CA

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that's a tough one... the aperture on both are pretty small, so I can't imagine either of them being fast. But, my suggestion is that the 70-300mm f4.5-5.6G IF-ED is since the focal length range is smaller and it may search for focus less.
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