Extensive review of 5R + 16-50mm pancake.

Based on reading the review, the 5R body looks improved. Certainly the controls are improved, but that pancake kit zoom looks terrible. Further down the page, the reviewer gets to vignetting and distortion testing. Unless his distortion sheet is itself crumpled, then that's REALLY complex distortion! Barrel on the edges, but pincushion in the center!

http://dcvieweditor.smugmug.com/Other/Sony-NEX-5R/i-WqdLVkH/0/O/distw.gif

It's better at the telephoto end: http://dcvieweditor.smugmug.com/Other/Sony-NEX-5R/i-ptRMP5n/0/O/distt.gif

And the corners are the worst I have ever seen, with double of vertical lines!
http://dcvieweditor.smugmug.com/Other/Sony-NEX-5R/i-VPtc8Z4/0/O/distwcropstext.jpg (corners are in the right column, center crops in the left)

I would consider the 5r body (they can keep the lens!) over the 6 for the capacitive touch screen, which has been wonderful for me the last few weeks, for selecting AF points (though it's more finicky than the EM5 touch screen. It's more confusing to use).

(the links above I pasted from the original article for quick reference, but please read the original article, as it's very understandable even in Google translate, and gives a very good overview of the 5R).

 

How on earth do you fix those edges/corners with FW? That would be a sight to see.