The files out of the 5D3 should be tack sharp. If not it is either user error or bad calibration/bad lens.
Here is a full size image from RAW (DPP conversion with default settings) so you can see the pixel level sharpness you should be getting if everything is right.
the 100% RAW of a sharp 5D3 file looks as sharp as a 5D classic and a 5DC side by side per pixel. Anything less than that indicates a problem with user/camera/optics.
The files out of the 5D3 should be tack sharp. If not it is either user error or bad calibration/bad lens.
Here is a full size image from RAW (DPP conversion with default settings) so you can see the pixel level sharpness you should be getting if everything is right.
