Pretty much any DSLR made in the last 10 years is good enough for photos, unless your work is going on billboards. I prefer the colours of my D700 (ancient) do D750 sometimes.
It'd be interesting to see a D850 vs 1DC shootout with realworld subjects. Esp with regards to motion.
The Tamron Di VC lenses (their equiv of Sigma's Art) have excellent IS if anyone needs stabilisation for Nikon.
1. Anyone had overheating issues? A friend of mine uses the 1DC for pro work and claims it overheats quite a bit. Maybe it's his copy.
2. Can the Sigma Art 18-35 be attached to it? Anyone used it on the 1DC?
Not a fan of B&W video with a few exceptions. Always felt it takes you "out" of movies too much unless they are genuinely that ancient. Love it for stills tho.