Tamron beat Nikon to a stabilized 24-70mm that covers the FX sensor format. The new Tamron 24-70mm f/2.8 Di VC USD was announced prior to the CP+ show this week in Japan. It features 17 elements in 12 groups, with eight of those elements being special formulations (aspherical, ED-type, and high-refractive glass). The lens has a built-in focus motor, so works with any Nikon DSLR. Close focus is 15" (0.38m) and maximum magnification works out to be 1:5. At almost two pounds (29 ounces, 835g) the lens is no lightweight contender. 82mm filter size, and comes with petal hood. No word on price or availability yet.