Jeff ascough posted some new pictures over at his blog. RAW pics processed using Canon's beta DPP software. They dont look any different from the D3 or D700 output at iso 12800...in think 1 or 2 of those look worse than what ive seen come from the nikon lineup. that said, this is coming from a 21mp camera so i guess that in itself is a mean feat.
[Sony A7R Mark 3 | Sony A7S | Sony Zeiss 16-35m f/4.0 | Sony FE 28m f2 | Sony Zeiss 55m f1.8 | Sony FE 28-70m f/3.5-5.6 | Helios 44-2 | Helios 44-3 | Nikon 105m f/2.5 AIS | Contax Zeiss Planar 50m f1.7 | Contax Zeiss Planar 100m f2 | Voigtlander Nokton 40m f/1.4 | Canon 24-105m f/4.0L | Canon 85m f/1.8 | Sigma 30m f/1.4 | Canon 10-22m f/3.5-4.5 | Canon 100m f/2.8 Macro USM | Canon 580 EX Ver 1.0]