Guys, I just read this at SAR: "the main issue is the long exposure color noise in the shadows which starts to appear at shutter speeds greater than 1 second, really become a problem beyond 10 seconds, and is like an unwelcome dose of LSD beyond 30 seconds."
This is really disappointing as my landscape photography is often made of long exposures and I like to print big.
I'm thinking I'll wait a few months before deciding. If true, I won't have any choice left but to wait for the next iteration of the 645Z
as most likely it will have a bigger sensor. Finally a true cmos MF sensor (my standards) in an affordable MF camera (my standards).
Suffice to say, the D810 is looking better today. And as a matter of fact, the 5DSr too.