I checked out the new 850 at a camera shop with the Zeiss 16-40mm f4 attached.
When I looked through the finder, it was like looking through a peephole. The corners were blocked off entirely and the view had a rounded look of color TV's from the 60's (admittedly I'm showing my age here!). Hardly the bright rectangular finder I'd been hearing about. The images on the LCD that appeared after each shot, however, were fine. In fact superb!
When I attached a regular "G" lens to it, all was bright and normal.
So the question is...is this an anomaly with this Zeiss lens? Seems odd considering the lens maker's reputation. Or was there a setting that was overlooked. The salesman couldn't figure it out either.