The Tamron SP 24–70mm f/2.8 Di VC lens is a fast lens designed to work with full-frame cameras (but it will work with smaller sensors, too). It's available for Canon, Nikon, and Sony; however, the Sony version doesn't include vibration compensation (VC) because Sony DSLRs already have that feature...
Image quality; VC; price
Very slight vignetting and barrel distortion