biostockman
TPF Noob!
That's amazing... Mine is very dull wide open.I have that lens and it's slow on AF but it's sharp, even wide open.
Are you happy with the sharpness of all your other lenses?
If so send it back for re-calibration.
Yes absolutely! Even my kit 28-135mm is surprisingly much sharper. I don't get it... I may just take it to the shop where I bought it and have them take a peek. I thought that I may have just needed to get used to it but my results haven't gotten better.