Quote:
Originally Posted by garykohs Jonathan,
I'm not really sure that the AF-S is worth it over the AF-D. But I'm no longer a Nikon guy so I don't keep up with this. My impression, though, is that the AF-D focuses just about as fast as the AF-S and is considerably smaller and lighter.
For what it's worth, consider Ken Rockwell's comments at http://www.kenrockwell.com/nikon/80200.htm
I should add that you shouldn't consider Ken Rockwell's comments as gospel. He's an informed Nikon guy, a great photographer, and he has strong opinions. So he's always an interesting read. But he's just one of many. |
I am a Nikon guy and have been for a long time so I'll clarify your comments. The op didn't say which body he was using and will have a major impact on how fast the screw drive lens focuses.
On a D2h/sx/xs/3/3x/3s it will focus almost as fast.
On a D700 it'll be slower
On a D300/200 it will me quite a bit slower
On a D90/80 it will be even slower.
On a 70/50 it will be painfully slow
On a D40/x/60 It won't focus at all.
And there's not much difference in size, both lenses are pretty large.