I don't know about the D800 but my D4 will AF in light too dim to reliably use my M9.
I have also printed some very nice color D4 portraits shot at ISO 16,000 without any PP other than ACR.
For REALLY low light B&W I already have the camera I need, the D4.
For high res B&W it looks clear that the D800 and the MM are a lot more alike than different.
IMO, it comes down to RF vs DSLR and Nikon vs Leica as well as cost rather than IQ.
Still, if I was a B&W disciple, I'd get the MM just because it is so damn cool.
-Bill
Fashion meets Fighting
April 2012 – Bill Fulcher |