Photoclubalpha

Hi All

Does anyone know anything about this lens. I cant find it on the Sigma website and dont really know how it performs and is it any good for the A850?

I have one which I use occasionally on my Dynax 7 (film), so occasionally that I am considering whether to sell on to part-fund some other lens which might prove more useful. Seems OK with film but really haven't used it enough to give a proper report, and don't have an a850 . Don't use it on the a550 as no improvement over the Tamron 17-50.

Stewart