I was actually hoping for even better performance from Tamron's new 24-70mm f/2.8 in the borders and bokeh from the originally published MTF charts but, considering the price, build quality and optical stabilization, this is likely to become a very good budget-minded choice for full-frame mid-range zoom. It does beat the previous EF lens in most areas, the vII will be interesting to see tested.
Tamron test link below
www.photozone.de/canon_eos_ff/741-tamron2470f28eosff
Tamron test link below
www.photozone.de/canon_eos_ff/741-tamron2470f28eosff