Is my Tamron 28-75 a bad copy? I just bought it less than a week ago...

Started 8 months ago | Questions thread
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DaFuglyDork
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Is my Tamron 28-75 a bad copy? I just bought it less than a week ago...
8 months ago

hello, I just bought a new tamron 28-75mm (A09) F2.8 non VC copy.. and more than half the time the image quality is subpar compared to my canon 18-55 kit lens with IS off!  only in super duper ideal conditions the lens seems to be sharper than my kit lens....

Here is an example of what I mean in the figure below...  an apple seed taken on my desk (the first row is with flash bounced to ceiling) and the second is without flash but a direct light source so I can increase the shutter speed.

either I am doing something wrong or this copy really sucks...

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