WT21 wrote in post #15227636
Those are my impressions to date, so I can see why "either/or" is not so cut and dry.
One question -- it seems that the D700 + 85/1.8 G is slower in single AF than the 5D + 85/1.8, yet is much better in C-AF. Is that about par with other people's experience?
There are a large number of focus options on the D700, which have a big impact on focus speed - it takes time to work through them and find the settings which best suit your particular style of shooting. 3D tracking in particular slows down the camera a bit, but can be very useful - depends what you're shooting.
In 2008/2009 we switched from shooting weddings with 2x 5Dc, 1x 1Ds mk1 and a 40D - and moved to 2x D700, 1x D300, 1x D90. Poor focus on the 5Dc was precisely the reason we switched - we were consistently missing key shots with the 5Dc. We'd bought the 1Ds mk1 just to see if it was 'us' missing shots or the cameras - and we found the 1Ds nailed focus every time for us, whereas the 5D would not (same lenses, same conditions, same shooting style - different results). Buying all 1 series was not sensible for us, so we looked at Nikon, bought a D700 to try, and then switched.
In my opinion the D700 was exactly what the 5D mkll should have been - but it's still a very competent camera today, despite 'only' having 12 megapickles.
We no longer shoot weddings, and I sold our last D700 just a couple of months back - but I really miss it - don't miss any of the Canon kit we owned (except the 70-200 f4 IS).