I am planning to buy a AF-S NIKKOR 24-70mm f/2.8G ED, but I saw a second hand 35-70 f/2.8 AF in a store nearby. I did some research and I stumbled upon Ken Rockwell's 35-70 review, in which he states:
This 35-70mm f/2.8 AF-D was Nikon's flagship professional midrange zoom of the 1990s, and has pretty much the same optical performance as the newest 24-70mm f/2.8 AFS, with a lot less size, weight and cost.
As some people here have noted, Ken Rockwell's reviews are sometimes not that accurate, so before investing on that 35-70, I want to get some more professional opinion. I plan to get either the 24-70 or 35-70 for studio shots, because my 18-105 does not yield the sharpness I want without post-processing.
Is the 35-70 AF at par or at least close to 24-70's sharpness or image quality? I'm primarily concerned with that, although it would also be nice to know about AF speed.