So, this is the 40 year old 50mm f/1.2 mounted on the
Z6 with the FTZ adapter. The adapter allows electronic
communication between the camera and chipped lenses,
but the adapter does not support mechanical communication.
Consequently the Z6 does not know what aperture has been
selected when using older manual focus lenses. This was
shot at either f/5.6 or f/8, and certainly not f/1.2 as
the camera is reporting.

Apart from this minor issue, mirrorless camera features
like focus peaking and viewfinder magnification are ideal
for shooting with manual focus lenses.

Best viewed at original size.