I'm looking for people who have bought this lens and have had them for anything from a few months up to 4 years. I'm looking for people who have had their lens for up to 5 years, who have had good and bad experiences with them.

Reason I ask is that I am currently investigating the one I have which has a few faults which are currently being investigated as to whether they are design faults or just plain wear and tear. This is why I am seeking people from both ends of the spectrum of good and bad - to see if it is design faults, or if it is wear and tear.

Hope to hear from you soon.