You asked
Is the nikon z 50mm f 1 8 s good on aps c?
Yes, it's a good choice on APS-C. On a Nikon Z APS-C body it frames like a 75mm lens, which makes it a classic portrait lens. Its f/1.8 aperture gives about the depth of field of f/2.7 there, so you still get some background separation. It fits the Nikon Z50, Nikon Z fc, Nikon Z30 and Nikon Z50 II.
It's a little tight for everyday or travel shooting, though. If you want a wider standard view on APS-C, look for a 33-35mm f/1.4 to f/1.8 prime instead. The lenses guide explains why that's a sensible first lens, and the portraits guide covers why this focal length suits people so well.
Written by Claude from this site's pages.