Er Chitara
Senior Member
Up to 800 ISO (which is where normally I would be bothered by DR) there's a 0.6 stop difference, IIRCThe difference (according to the reliable charts at Bill Claff's site) is only below 1/2 stop at base ISO (100), and is almost 1 stop at higher ISO's.There's hardly half a stop difference in DR between the D750 and its contemporary DX companion, the D7200.It's kind of simple. When comparing same generation FX and DX, the FX sensor will produce better image quality due to having better dynamic range
Above this, either I'm not very concerned with DR because it's dark and usually there's not much DR to be captured, or I provide more light.
Not to say that there's no difference, of course it is there. Just, it's not something that would make me feel the urge to go FX.