In Guide to Leica I show the 90mm f/2 APO ASPH on a planar subject at relatively close range in a full aperture series from f/2 through f/16 with the usual HD and Ultra HD images and large crops.
Moots Mooto X YBB: 90mm f/2 APO-Summicron-R ASPH on Leica M Typ 24
The 90/2 APO ASPH was shot using the Leica R-adapter M on the Leica M Typ 240.
Moots Mooto X YBB 29er at 12,500'
Leica M240 + Leica 90mm f/2 APO-Summicron-R ASPH