Originally posted by axl sorry Albert but I don't think this is quick shift feature.
All DA ltds and normal DA lenses feature quick shift but none of those can move the focusing ring after hitting the limit. + this kind of barrel is on older lenses without quick shift too.
BR
Peter
Both my DA* lenses do exactly as described, and are called to have quick shift. Perhaps it is only the SDM lenses with quick shift that act like this. I'm not sure if my DA 12-24 is supposed to have quick shift, and it has a hard stop at each end of the focus travel.