Originally posted by aleonx3 On this one, the seller seems to indicate that the 2-year warranty in Canada has not yet expired; perhaps, it would be good for people buying in Canada, no?
Generally, warranties don't transfer, but the real issue is that lots of lenses have issues that are either impossible or extremely difficult to deal with, regardless of warranties. When you have a moderate case of an alignment or centering problem, it's like pulling teeth to convince a manufacturer that the lens isn't "within specs." If the front element falls out, you can count on a manufacturer (other than Pentax in the US, perhaps, given the recent poor performances by its warranty providers) to repair it. If one corner has poor resolution relative to the other three corners... good luck with that.
---------- Post added 10-24-2014 at 06:44 PM ----------
Originally posted by narual On the other hand, buying it used, chances are higher that you're not getting one that should have been a factory reject than they would be if you purchased it new, as the original owner would likely have returned/exchanged it for a good one.
Unless there is a very glaring defect, I think very few consumers test lenses to the extent they'd have to to discover a problem. Of course this might not apply as much to a higher-end model like a 60-250mm, but it definitely applies to many other lenses. Actually with any longer lens I think there's a tendency for even experienced users not to pixel-peep in the corners or edges, because their main subjects often don't reside there, and with limited depth of field (one reason they paid extra for a faster long lens), they're not looking for the corners to be sharp anyway.