It's the native Z version, Frank
That is, Nikkor 28mm f/2.8 SE Z. Not provided with the "S-Line" stamp by Nikon, but a nice performer anyway. I got it mainly for IR, which it can do passably, but these days it is often used on the Z f as well. If you are curious about the bigger lens on the Z fc, that is the Voigtländer APO-Lanthar 65mm f/2, also in native Z mount.
The FTZ often upsets the handling of an F lens badly because the placement of lens collars and weight distribution are all wrong -- at least for my hands. On the heavy and bulky Z9 the adapted lens fares a bit better though, but not on the small Z models. Thus I have added more lenses in native Z mount than I initially had planned.
