Nu har Marianne Oelund tittat på några rawfiler
The read noise data is falling right in line with the D7000 - I'd say if it's any better, not by even 10%. Unfortunately there are no images under ISO 400, so we can't see its "ultimate" performance at base ISO.
Read noise looks steady in input-referred units (electrons), so again it follows the D7000 characteristic and will be a similarly "ISO-less" camera.
Read noise in ADU's levels off just under 1600 ISO (I will venture a guess of 1400), so that's the maximum analog-chain gain. From ISO 1600 and up, the camera is using just digital scaling to produce the higher "sensitivities." This is a bit better than the D7000, which achieves a maximum ISO of 950 before numerical scaling is required.
The image set also lacks any pairs, so we're not in a position yet to evaluate full-well count and DR. I'm not expecting that figure to deviate much from the D7000, though.
As far as comparing to the D4, this camera will have a slight DR advantage at the lowest ISO settings, but the D4 pulls ahead above that.
Förutom att kameran har 36Mpixel så kommer höga isoegenskaperna motsvara d700 ( ev något bättre) om bilden räknas ner till D700 12 Mpixel storlek