I'm sure it's fantastic overall portrait city and landscape lens on a crop camera as well. Yes will be nice with focus on the Z50, even better with focus peaking Z& or Z7 of course, but then chipping is needed,,, I got it back in 2010 i believe, shooting it on the D3 and a lot of (IR) on the D200
BTW a selectable Internal CPU in the F to Z adapter has not yet been done I think,,, Birna? Maybe one day