Originally posted by audiobomber He was very high on the 16-85's capabilities. I asked about IQ vs. the 17-70 f4 and he said the 16-85 is in a different class, very sharp everywhere.
Perhaps a bit of hyperbole there. The DA 17-70 is actually pretty sharp in most places, so it's not clear that a lens that is sharp "everywhere" really is in a "different" class. Perhaps you could make a case for the 16-85's distinctive superiority based on AF performance, as there have been a lot of complaints about the DA 17-70's wonky AF and SDM failures.
AFAIC, the DA 16-85 only has to be a better than other lenses in its class (primarily the Nikkor 16-85 and the Canon 15-85) to be a success and justify it's MRSP. The Nikon and Canon lenses are actually pretty decent mid-range options. I see 12 by 18" and larger prints from the Nikkor 16-85 all the time, and that lens is capable of producing beautiful images. From what I've seen in terms of images produced by the Nikkor 16-85, the DA 17-70 is, by a slight margin, the better lens; and so if the DA 16-85 turns out to be even better than the DA 17-70 (even if by only a small margin), it could easily be regarded as the best lens in its class.