DP1M versus SD1M with 20mm f1.8

The DP1M lens is very impressive Rick.  I'm surprised by how much better it is in contrast as well as  sharpness.  Any possible fall off of the 20mm stopping down to f11?  I assume both files were processed identically; what sharpening was applied--just SPP's default?  Doubtless the horizontal crop was from the middle of each image.  Given the murmurs about DP1M corner softness when compared with the DP2M, it would be interesting to see the lower corners of these images.

Thanks for posting.