The Nikon D850 features a completely new sensor developed in-house by Nikon. It's also the first backside-illuminated sensor in a Nikon full-frame DSLR. That allows it to perform up to one stop better than the D810, despite the higher pixel count, according to Nikon. But the latest tests look even better. It's now possible that the wealth of positive reviews of the D850 are about to get another, albeit small, addition.
While we can't show them to you here, FotoInfo.si has the first high-ISO comparison shots between the D810 and the D850. While the color noise has significantly dropped, it seems the luminance noise is still there and even slightly more pronounced, perhaps. But I find this to be more pleasing, as it looks more like natural film grain than unsightly digital noise.
Regardless, it's hard to discount the obvious improvements across the board, especially at the higher ISOs. As the D850 reaches the upper limits, it seems to hold the files together even more than the D810 did at a stop lower. Furthermore, the detail and color rendition in the files seem much improved.
Head over to FotoInfo.si and see for yourselves. What do you think? Impressed, or not so much?