Granted the white balance is off, but otherwise you are stupefied that a camera with 50% more pixels on the same sensor size and mounted to a lens that frame the subject 50% tighter gives you more details? Now I'm stupefied...
I agree. Apart from the white balance, the problems are multiple:
- The D810 resolves more to begin with.
- The 85/1.4 is a better, costlier lens ... sharper wide open ... as most 85's are sharper than most 50's.
- The 85 frames the subject tighter, resolving more detail.
- Reducing the 85mm image to match the 50mm increases the apparent resolution of the 85 image.
Yes, these results are typical when you stack the deck in this way. Considering the four points against it, the 50/1.4 did rather well!
One can see the same comparison on The Digital Picture (mouse over the image for the 50/1.4):
Also, not sure which 85 that is. If it is the 85 G from 2010, then it is a much newer design than the 50/1.4 which came out in 1993, early in the EOS era and before the DSLR revolution.