At the end I would like to return to my deliberations from the introduction chapter of this test. Thinking about a perfect system and uncompromising f/1.2 lenses I always allowed big and heavy constructions. Still, I suppose, Nikon went a bit over the top with this one.
solid casing, weather-sealed and mostly made of metal,, excellent resolution in the frame centre,, good image quality on the edge of the APS-C/DX sensor,, sensible image quality on the edge of the full frame sensor,, negligible longitudinal chromatic aberration,, moderate lateral chromatic...
distinct vignetting on full frame,, performance against bright light could have been better,, significant dimensions and weight.