Quote Originally Posted by ac12 View Post
None of the push/pull Nikkor zooms that I have seen and handled, had a zoom lock on the zoom/focus ring.
Maybe some of the 3rd party lenses had suck a lock.
Some Nikkors do have these locks, but they aren't common- off the top of my head, I think the 80-200 f/2.8 Ais and the 200-400 f/4 Ais had zoom/focus lock knobs; Nikon liked to put little focus "aids" on it's big lenses, like the 'focus memory' on most of the telephotos.