"NG 10 Years" competition: RESULTS !!!https://nikongear.net/revival/index.php?topic=11252.0Current status: 88/150 supporters
Very trivial. Just add an Z-bayonet instead of the usual F-mount on the rear end of the PB-4.My supply of factory Z bayonets is currently depleted as they are all deployed to various DIY contraptions. However, no bigge ordering another batch of them. Alternatively, one could get cheaper Z-adapters that don't build much, for example an Z-M42 that is virtually flat.However, the standards of hte PB-4 do add a lot of length on their own, thus this might only work with lens heads or enlarger lenses, or perhaps older view camera lenses.