Hi all - I was given a pair of Nikon N6006 bodies a couple of years ago and two lenses: a 60mm Micro AF and a 70-210 AF. Both of these lenses are from just prior to the release of the D series lenses. I haven’t really spent a lot of time with this outfit because I don’t really have much affinity for autofocus but I’ve played with it some and found the lenses to be nice. More recently I was given an older Nikon outfit: an F3 HP, an FM2 and several AI primes. Knowing that Nikon’s lenses are retro compatible I thought it might be interesting to try the AF lenses on these older bodies. Interesting indeed! I unlocked the aperture ring, rotated the selector ring from A to M and mounded the 60mm on the F3. Sure enough, everything seemed to work fine until I rotated the focus to infinity... and it locked there. Removing the lens frees everything up again, but I can’t figure out why the lens locks at infinity or how to get it to stop. I’m a long-time Minolta guy, quite new to Nikon, and the subtleties of Nikon elude me. I’m sure I’m just doing something dumb. Would someone kindly tell me what that is? Any insight would be greatly appreciated!