an ISO comparison of a new camera. Well, what I should say is that they are first out the gate with a useful ISO comparison. Tons of crap websites produce early comparisons with no value.
The biggest point of value is that DSLRCheck usually includes RAW comparisons. And such it is with the NEX-6. Obviously, the NEX-6 does battle with Sony's current king, the NEX-7, and everyone had high hopes that the new generation, 16Mp sensor would perform better than the NEX-7's 24Mp ubersensor.
Sadly, this is not the case. There is nearly a full stop difference at ISO6400, but below that, they compare similarly. It seems to do very well extracting detail at lower ISO, and I will withhold any judgment until a full comparison is complete, but I was expecting superior performance across the board. Most importantly, I was hoping that Sony would bring something to the table that did better against Fuji's truly magical sensor in the X Pro 1 and XE-1.
As the author mentions, this is actually a regression for Sony, since there was no significant difference in ISO performance between the NEX-5n and NEX-7. Disappointing, but again, ISO is only one aspect of sensor performance.