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02-26-2013, 09:11 PM   #1
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sigma vs tamron

hi,
new member of the forum as well as a new owner of a k30. looking for fast lens. can you help me compare the sigma 70-200 2.8 with the tamron 70-200.
thanks,
charlie

02-26-2013, 09:45 PM   #2
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Adam (the forum administrator) did a review not too long ago which included those two lenses.

Fast Sports Zoom Lenses for Pentax - 70-200mm Sigma & Tamron - PentaxForums.com
02-27-2013, 06:34 AM   #3
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Also, here are separate user reviews for each lens:

Sigma 70-200mm F2.8 EX DG OS HSM Lens Reviews - Sigma Lenses - Pentax Lens Review Database

Tamron 70-200mm F2.8 Di LD Macro Lens Reviews - Tamron Lenses - Pentax Lens Review Database
02-27-2013, 03:57 PM   #4
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Got the tammy about a month ago and still working out the kinks at 200 f2.8 . Stopped down to f 4 its killer . Some focus hunting on the K-30 but overall a nice build quality. Only complaint is performance wide open but it might be focus adjust or me or a combo of both

02-27-2013, 04:49 PM   #5
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I shoot with the Sigma 70~200 FLD OS, blistering sharp lens even wide open, resolves pretty high also - one thing about tamron lenses for pentax is they are near featureless, no quick shift focus and no way to enable CIF/Trap Focusing when using manual focus (can probably hack it though for CIF).
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