9 out of 10 points and recommended-sharp throughout range (68-80 l/mm throughout) -good range (28-200) -light -relatively inexpensive -good auto focus -excellent all-around lens -don't have to change lenses often, so minimizes dust on sensor problems.-hard to find -significant pincushion distortion, but can be fixed in Photoshop if noticeable
I read Ken Rockwell's review, and was interested, so I bought one from KEH. Tested out excellent, withreviewed May 8th, 2016 (purchased for $320)
measured 68-80 l/mm resolution center and corners, throughout the range. I generally use it in the studio at f8-f11, but also carry it around with me and use it outside for portraiture and landscape image.
Originally purchased it for my D3, now use it on my D800. Also purchased 3 more copies, all four tested out sharp over the entire range. Currently use them on my D800, D3 and my son's Fujifilm S5 (DX sensor size, made by Fuji), with one as a spare.
For the four lenses, cost ranged from $270 to $360.