How sharp is the nikon z dx 12 28mm f 3 5 5 6 pz vr?

Here is what the site says about that.

From Nikon Z DX 12-28mm f/3.5-5.6 PZ VR: Nikon Z DX 12-28mm f/3.5-5.6 PZ VR: A zoom lens by Nikon for APS-C cameras, 12-28mm f/3.5-5.6. Specs - Maker: Nikon - Focal length: 12-28mm (zoom) - Maximum aperture: f/3.5-5.6 (it gets darker as you zoom in) - Made for: APS-C sensors - Mounts: Nikon Z - Stabilised: yes - Autofocus: yes What it frames like - On APS-C (Nikon Z): like 18-42mm on full frame; f/3.5-5.6 gives about the depth of field of f/5.2-8.4 there. - ...

From Portraits: The camera: What matters most is eye autofocus, which current mirrorless cameras do very well: it finds the nearest eye and tracks it, so wide apertures stay sharp. Full frame gives you more background blur at the same f-number than APS-C, but a fast APS-C lens closes most of that gap for far less money; see sensor sizes.

Quoted from this site's pages.