Sigma Lens update

I regret to say that I had to return the wide angle Sigma lens to Warehouse Express today to ask for a replacement. As many other people have reported there seems to be a problem with Quality Control at Sigma. Although I did manage to get a couple of pleasing shots and was happy with the build quality, my lens had severe auto-focussing issues, softness and generally disappointing performance. The top left quarter of the frame appeared to be worst affected by the problem as shown here.

I am hoping the replacement will be here soon and that it will be a good lens. If not, I will get a refund and look for a different marque lens which would be a pity as I am more than happy with my other Sigma lenses, the Sigma 17-70mm F2.8-4.5 and Macro 105mm F2.8 EX DG.

I will post test pictures as soon as I have received it.