The Nikon D810 costs almost twice as much (go to B&H or Adorama and look). The D810 has no Shake Reduction built in. The D810 has no WiFi. The D810 has no GPS. The D810 is bigger. The D810 has no pivoting view screen. The D810 won't do star movement compensation. The D810 won't do wireless tethering without a $300 bolt on device. The D810 has no anti aliasing solution in camera.
The D810 files had better look ever so slightly better than the K-1 files or the D810 has no reason to exist.
I assume that when both cameras are put into pixel shift mode that the D810 files still look better... Oh wait, the D810 won't do pixel shift. Never mind.
Now to be fair:
The D810 has weather sealing.*
The D810 has no AA filter.*
The D810 will shake dust off the sensor.*
* Cough... copied from Pentax... cough.
Last edited by HoustonBob; 05-19-2016 at 04:47 PM.