Tamron 70-300mm f/4-5.6 USD or Sigma 70-200mm f/2.8..cannot decide!

Started May 22, 2012 | Discussions thread
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Tamron 70-300mm f/4-5.6 USD or Sigma 70-200mm f/2.8..cannot decide!
May 22, 2012

I just sold my Canon 70-300mm f/4-5.6 USD and I'm looking for something with better IQ, and better AF performance.

I have narrowed down my choices to these 2 lenses...which I know are different animals and price ranges... the Tamron is $350 New after rebate and the Sigma is about double in the used market...

I shooting portraits, but also some sports, moving kids, etc.... so I do want good AF tracking, which I think both of these lenses will provide, esp. compared to the Canon micro motor USM on the 70-300mm IS.

Size and weight is not an issue, however I know the Tamron will be more 'stealthy' than the Sigma.

I also considered the 'Magic Drainpipe' as I heard the AF is pretty decent even thought it's not ring USM... but in the end I cannot risk $5-700 on a lens that has no service/repair option...

Anyone else grapple with this type of decision?

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