I'm in the process of upgrading to either a D700 or D3, and the last little bit of the puzzle for me is making sure the tracking (autofocus) is as good on the D700 as on the D3, as I like to take action shots of quick quickly moving animals although we mainly do weddings.
#1. "RE: D700 Tracking as good as the D3?" | In response to Reply # 0tdtaylor Registered since 03rd Jan 2008Fri 29-Aug-08 09:35 AM
Just last night I was trying out the tracking in 51-3D in very low light with the D700- my opinion (not facts) is that the D3 is just slightly faster. I just sold my D3 after about 10k clicks, and have had a D700 for two weeks. The two cameras are very close, but everything feels a touch faster with the D3, and it superb ergonomics also make handling a bit faster. I also have the D300, and both are considerably faster than the D300. Especially in low light, such as a wedding reception, the D3 and the D700 are faster than the D300.
One big advantage of the D3, if you have to look through the viewfinder all day long, is that the focus points are much more sophisticated- adjustable transparent red squares that fade away (read get out of the way), versus the black opaque squares of the D300 and D700.
Note that these are opinions, and not backed up by testing. My honest opinion is that the D3 and D700 AF are so similar, I would use other criteria to judge, such as battery life (very different between the two), two card slots, frame speed, 100% viewfinder, size, etc. Note that the D700 with the battery grip is not as good ergonomically as the D3.
Nikonian in Maryland