Upload & Sell: Off
No, no, I am not offended at all, I just wanted to present the opposing viewpoint, which also exists. I understand that some people prefer the 50MP, and in the end I did decide to keep mine, so I own both.
This shot doesn't really show the problematic corners of the 50MP, but I have others which do. The trouble is that wide open, the extreme corners of the 50MP have extreme field curvature, and I can see things far away suddenly snap into focus when I am focusing quite close. This is probably related to the focusing distance in some complex way. When I get home tonight, I can post some more shots to demonstrate this, if anyone is interested.