umphotography wrote in post #19428978
Dolina- Nothing personal....But canon caught Sony sensor technology with the 1Dx2 and 5D4 sensors
That started with the 80D, actually; the first Canon to actually benefit from 14 bits at base ISO.
and that was improved on slightly with the 1Dx3 sensor.....Since these releases....There is no advantage that Sony has on canon for sensor technology....IN FACT.....Canon has likely exceeded anything in the Sony line up with the R6 release.....It has better usable ISO @ 51000 then any other camera on the markets.
The Nikon D5 is a little cleaner, actually, at ISO 51K. Maybe the Sony A7s series, too.
If you expose the R6 for ISO 3.28M, however, like the D5's top ISO, I would expect the R6 to be a little better, since it doesn't have that strong horizontal banding noise that the D5 has with its extended ISOs. It's very clean (by existing standards) up to 102K, which has the camera's highest analog gain, but once you go much above that, the banding starts to get stronger in the image.