D3S Had one on a Nikon a couple of years ago - good overall but can suffer at the the upper focal lengths with edge distortion. I don't think it's limited to individual examples, just the entire construct.

Had one on a Nikon a couple of years ago - good overall but can suffer at the the upper focal lengths with edge distortion. I don't think it's limited to individual examples, just the entire construct.
I have also had my eye on this lens, could anyone tell me how it shapes up against the Tamron 18-270mm f/3.5-6.3 Di II VC , I know the Tamron is abit more, would you say it is worth the extra ?
Hope this isn't going away from OP topic!
) but its alright, and for what it costs a bargain.