The next picture is a 1 to 1 crop from the original of the first image (which was taken on a Sigma DP2M)
Now for the same thing from a GX80 at 800ISO - shot through an f2 55mm SMC Takumar. From jpg, no sharpening. It should be an insane comparison but the new m43 camera does amazingly well...
And this was taken at 1600 iso using the GX80/85 and Panasonic 12-32mm kit zoom. It's a from an in-camera jpg