I have just returned to this thread after an absence. It should be perfectly clear that my post was not directed at a newcomer, but at you and the misleading nonsence that you posted and persist in.This is a thread directed at a newcomer. And as such he most likely does not know about the inner mechanics of a lens nor is likely interested in it. And a newcomer cannot make anything from "Chrome ring " versus "nFD/FDn" Thus read my reply in the context of handling. And in this I am perfectly right.