I was looking at those two lenses a while ago Dan, and every review I found online rated the Tamron as a superior, though similar lens. I realise you're eager to upgrade but I think it's worth waiting for the one you think is right. Prevent regrets!
This review http://www.the-digital-picture.com/R...ns-Review.aspx compares the two at the bottom. He says "The Tamron focuses faster" and "The Tamron focuses much more accurately - My keeper rate is far higher with the Tamron." That alone would sell it for me.
This review http://www.the-digital-picture.com/R...ns-Review.aspx compares the two at the bottom. He says "The Tamron focuses faster" and "The Tamron focuses much more accurately - My keeper rate is far higher with the Tamron." That alone would sell it for me.
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