Undoubtedly 3D AF with tracking does work now and then, but I never found the results consistent and predictable the lack of which for me is a major drawback.
Stopping down a little takes better care of movement within a focused zone.
My impression so far is D600 handles better than the D300.
3D Tracking AF is limited for certain use but when needed is very useful. Stopping down not always possible when one needs the minimum DOF and as much shutter speed despite using high ISO settings with a D700 and D3s due to the crappy light.
Better than D300 - that's good news. How does the D600 feel in your hands compared to the D7000? The D7000 is a bit uncomfortable so I always pair it with the MB-D12 but this also makes it difficult to pack in limited space when traveling. I am hoping that I can use the D600 with no need for the MB-D14.
Edited by Larry, 20 September 2012 - 14:24 .