kevinmcdade wrote in post #8614413
Can anyone comment on the D700 AF compared to a 1D series AF?
After using the D700/1D/1Ds simultaneously for two seasons, I wouldn't say the D700's AF smokes the 1-series. Not at all, at least in my experience. They both have their strengths.
The mark III series is killer on outer AF point accuracy in single shot AF mode. It is really, REALLY excellent!
Tracking with the Ring of Fire is really good too. It works well for me shooting racecars on the track or on a rally course.
The D700 seems to be better in single point servo focusing. Using the expanded 21-point centre tracking is also excellent for people walking around. I use it in weddings all the time. 21/51-point tracking doesn't seem to give any higher keeper rate than the 1-series ring of fire... at least for racecars. One does not seem better than the other.
Nikon's 3D tracking is really great for erratically moving objects... something I can't seem to do as well with on a mark III. So hyper dogs and stuff seem to be better suited to the Nikon.
But I don't seem to get as good of a keeper rate on single shot AF mode on the D700, no matter what lenses I use (or borrow). The mark III 1-series seems to dominate in that regard. ESPECIALLY when we're talking about the outer corner points, which are almost the only points I use on single shot AF modes. As a result, I keep the Nikon on AF-C (servo) mode all the time, as I seem to get better results that way.
And one thing I noticed, is that there seems to be a tiny bit of lag upon pressing the AF-ON button on my D700, compared to my 1D/1Ds. It's a little irritating, but I'm getting used to it. I thought it was because of my AF-D lenses, but I got the same lag borrowing my friends' AF-S 24-70 and 14-24. It's weird. I mean, when I press the AF-On button on my 1-series, it seems like it's already started focusing before I've even finished pushing the button down. On my D700, it feels like it won't start focusing until it's SURE the button is fully depressed. Probably not something you'd notice if you picked up a D700, but shooting them side by side for a couple seasons, you notice these tiny differences.
Another thing I really like about the 1-series is the option to use 9 selectable points. Choosing your AF point is NEVER more than one flick of the joystick away. The nikon 11-point system can require up to two presses to get your AF point selected. This is a HUGE drawback if you are shooting in a very dynamic and fast paced environment.
Basically, to me, it's a wash between the two. Both have their advantages, but neither have anything that would make me do a full "jump to the other side". All I really want is for canon to make a D700 equivalent. The 5D2 just isn't it.