Tamron 28-75mm sharpness at f2.8

Started Feb 10, 2013 | Discussions thread
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Tamron 28-75mm sharpness at f2.8
Feb 10, 2013

I have a tamron f2.8 28-75mm lens for my canon 650d camera and am generally happy with the it.

One thing i have found is that the lens is quite soft at f2.8, more so at 28mm than at 75mm. At f5.6 things get sharper and at f8 sharper still.

I'd just like to know if this is normal. Several reviews do indicate this softness, but others indicate the lens should be sharp.

I'll upload some test shots as soon as I get a chance.

 cnw180's gear list:cnw180's gear list
Sony RX100 Canon EOS Rebel T4i Canon EOS 70D Canon EF 50mm f/1.8 II Tokina AT-X Pro 11-16mm f/2.8 DX +3 more
Canon EOS Rebel T4i (EOS 650D / EOS Kiss X6i) Panasonic Lumix DMC-F5
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