The tragic part is that the lens doesn't look as good when you compare it to medium format, and for 4300$ you can buy medium format.
This is a mamiya 80 1.9 (200$ lens) on a 1500$ Phase one Df with a P45+ back (48x36mm sensor). The bokeh isn't swirley in the corners, equivalent 50mm 1.3,and this lens covers 6x7 (andrewwww put this on your gfx with a speedbooster)