How sharp is your Tamron 28-75?

Started Oct 5, 2006 | Discussions thread
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studiomk
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How sharp is your Tamron 28-75?
Oct 5, 2006

I am on my second copy of the lens. First one had focus issues in that left side OOF when ens was at 28mm (right slightly soft). When you wenr to 75mm, the right side of the image dropped OOF. Distributor agreed after own tests and sent out latest copy.

This lens is a lot better in that only at 28mm is there a noticable drop off of image sharpness ( and vingetting ). At 50mm & 75mm it is fairly constant occross image. Still not as sharp as I was expecting from reading on forum. Not as sharp as my 24-105 ( even with it's own issues since repaired ).

I don't want to be a pain and keep returning lenses, but want to make sure that it is as sharp as possible prior to keeping it. Anyones experience would be interesting.

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