> Not absolutely sure that will work, but I passed on buying a lens > that acted that way. After rotating the lens to infinity and then > switching the camera to autofocus, the lens would rotate away from > infinity a tiny bit and emit an audible click. After that, > autofocus would work. I do have an F series zoom that does the > same thing, but I don't have to perform that procedure with it > before using autofocus. Just a guess.
Do you have any theories about this, I was beginning to think it was something to do with the focus clutch mechanism on the 85mm but what you say has put that to rest. John
