Photography Blog has completed their review of the brand new Tamron SP 24-70mm F/2.8 Di VC USD G2, which just began shipping in the last week or so.
It looks like they've come away quite impressed with this new Tamron.
Conclusion:
The new Tamron SP 24-70mm F/2.8 Di VC USD G2 is a versatile walk-around lens with a fast maximum aperture that consistently delivers great images. It's very sharp throughout most of the zoom and aperture range, even at the edges of the frame, with sharpness only falling off a little shooting wide open at f/2.8. The new SP 24-70mm G2 also produces very nice bokeh effects thanks to the 9-blade iris diaphragm, although there's some very obvious vignetting and some barrel distortion at 24mm, plus slight pincushioning at 70mm. Overall, though, there's little to complain about in the image quality department. Read the full review
Tamron SP 24-70mm f/2.8 Di VC USD G2 at B&H Photo