Have been reading reports of this lens and not convinced it is one of Nikon's better achievements! It's a lot of dough. Any comments or experiences would be appreciated. I like the versatility of this focal length. Don't know if good buy or not. merv:bang:
Well, it all depends what you are comparing it with.
The 24-70 is a bit sharper, but has far less range and at least as much CA and of course, no VR. Plus its heavier and quite a bit more expensive.
I did also try the 24-85D F2.8-4 and it was nowhere near as good and if you want to buy primes to cover the same range it would cost a fortune.
Similarly the 28-300 is not as sharp, though you would not expect it to be.
I have also had much more success with it than I ever did with a 16-85 DX lens on my D90 which ironically got great reviews. It was even worse on my D7000.
Of course, all reviews compare lenses against an absolute benchmark. Like all wide range zoom lenses the 24-120 is a bit of a compromise, so you should take that on board. It's not equally sharp at all focal lengths, but a lot better than no lens at all and manages to achieve decent contrast with good flare resistance at all focal lengths. I read all the reviews, but in real life usage a lot of the objections really don't seem to matter.
Between 30 and 60mm where you tend to use it most, its actually a very decent lens even by absolute standards. You can see a bit of sharpness drop off as you go longer but it's still useful. At 24 there is quite a lot of distortion and CA, but its symmetrical and easily corrected (and still better than the 24 F2.8 D).
It's comparable with the Canon 24-105 for IQ, which is to say good enough to be useful, but needs work in PP, but all of the distortion, CA and corner shading can be dealt with in Lightroom with a single click.
In summary I have a lot of shots printed quite large (13X19") which look extremely good from both a D700 and a D600, and when I am travelling it's a useful enough range to cover just about anything I'm likely to do. The only alternative which is likely to achieve visibly better quality at that print size across the same range is a kit consisting of primes or at least two far more expensive zooms.