Here is a quick look at the SLR Magic 50mm F1.1 E mount lens for sony FE.
Here is just few photos how it render in compare to the Sony FE 55mm f1.8 and Canon 50mm f1.2 on Metabones
SLR Magic 50mm F1.1
Canon 50mm f1.2
Sony FE 55mm f1.8
Here are some more examples that show vignetting and distortion .
You can see and download full size JPEG from the SLR Magic 50mm lens from this link:
The SLR Magic 50mm F1.1 Lens is a fun lens to use for photography, but it is probably more directed to video work.
It comes at a great price , $349 on B&H.
Focusing ring and aperture rings and very smooth .
With most lenses of wide apertures some vignetting and sharpness fall off is present, and some smearing in the corners.
The lens keeps nice focus in the middle at all apertures.