Originally posted by Warnesm777 I haven't really took enough pics but I am not seeing realy sharp photos either like i hoped I would.
The lens is capable of very sharp images. If you are not getting that you might want to test for back/front focus. But run some tests on a tripod in good light first, use ideal conditions to show the lens at it's best. If you cannot get things as sharp as you expect try the AF fine tune and if that does not work send it back for another try.
At reasonable apertures (f/4 - f/11) and in the middle of the range (20mm - 40mm), the images should be indistinguishable from a similar prime at any reasonable output.