p.1 #2 · Anyone use an adapted Nikon AF-S NIKKOR 300mm f/2.8G ED VR II Lens on a Z8 or Z9
Yes. I have and continue to use this lens on a Z9. I find it seamless compared to using it on the D5. I don’t really notice the FTZ as the lens is already a chunk. With the larger sensor, it works well in crop mode as well.
p.1 #3 · Anyone use an adapted Nikon AF-S NIKKOR 300mm f/2.8G ED VR II Lens on a Z8 or Z9
Z9 here too, in fact it seems to focus faster than it did on my old D810 DSLR. No issues, works like a native Z mount, at least until Nikon produce one, lol.