I spotted this the other day.. Techart TZM-01 adapter provides automatic focusing of Leica M lenses on Nikon Z cameras Any reason why this couldn't be modded to AF with AI or AIS lenses? I guess I wouldn't need an FTZ, just a suitable spacer. There are many fully manual mounts already. I suppose it's a bit like the old TC1.6a? I'm hoping it might possibly even make my AF dead 500mm and 600mm f4 work again!