I have owned this lens for approximately 3 years and I have never liked it. From the day I got it I've had focus issues with the lens. My colleagues use this as their work horse lens, but I can't trust it. I've just figured it was user error, but now I really need this lens to work especially with how much I paid for it. I've read in other forums that the plastic rings can wear down on this lens, but I've had these issues since the beginning.
Can you ever get a bad lens out of the box?
Thanks,
adfrick
