7 out of 10 points and not recommendedfast accurate AF for non-hsmNO AF/MF switch, noisy AF, spinning focus ring, wrong Exif data.
Sony mount sigma 30 1.4reviewed January 21st, 2012 (purchased for $515)
pros: build quality is good, no more crinkle paint, comes with hood, image quality is good, fast auto-focus.
cons: AF is noisy, the focus ring rotates when you auto-focus, but the biggest con for me was that the AF/MF switch is missing! switching from AF to MF requires you to go into the camera settings.
also the lens is giving the wrong EXIF data.