Originally posted by goubejp I would like to see a K3 with a 24 Mpix backlit sensor that would boost iso performance
That would be nice. Some of the newer Sony 24MP sensor's (as used in the A6000, and the D3300/D5300) seem to offer a slight step ahead of the D7100 and K3 in high-ISO performance, judging by their DxOMark low-light scores. But it's only about a 10% improvement. Sony doesn't seem to be able to push 24MP APS-C sensor performance much further at the moment. Maybe Samsung will shake Sony up.
If Nikon are claiming a '2 stop' improvement in high-ISO performance, they are over-stating it. It seems all they are really saying is they have boosted the ISO range of the camera from max ISO 51,200 (with the D7100) to max IS0 102,400 (with the D7200) - with the catch being that ISO 102,000 is only available in black & white mode.