Our review of the Tamron SP 24-70mm F/2.8 Di VC USD. In our latest lens review produced in collaboration with DxOMark, we look at Tamron's fast standard zoom for full frame cameras - the first in its class to include optical stabilisation. With its Ultrasonic Drive focus motor and drip-proof construction, it looks like a very tempting option for full frame shooters, especially as it costs rather less than its counterparts from Canon, Nikon or Sony. But is this all too good to be true? Click through to read our review and find out.