Sorry if this is a duplicate post but I didn't see it anywhere. Dpreview has put up their studio shot from both production bodies:
http://www.dpreview.com/previews/canon-eos-5ds-sr/5
These show the 5Ds to be only minimally less sharp than the 5Ds r, at least to my eyes, and less Moiré pattern but not completely absent. Also compares against the Pentax 645Z and Nikon D810.
http://www.dpreview.com/previews/canon-eos-5ds-sr/5
These show the 5Ds to be only minimally less sharp than the 5Ds r, at least to my eyes, and less Moiré pattern but not completely absent. Also compares against the Pentax 645Z and Nikon D810.