Canon 28-200 3.5 lens sharpness

[TxFlyBum]

I recently bought a Canon 28-200 3.5 lens for my 20D. It is not focusing as sharp as the 18-55mm that I have and I am wondering if it is a defect or a chraracteristic of of this lens.

[BowerR64]

Go here (http://www.photo.net/learn/focustest/) and do this test. You can find out if its focus is infront of or behind the subject.