Novoflex Follow Focus System C-Focus-lock-Quick-Releasing blocked

[europanorama]

Novoflex Follow Focus System C-Pigriff C(Pigrip C) has a large wheel ontop to block focus. e.g. when a bird is staying still. When its flying away to unblock without turning the wheel one could hit the wheel and focus was quickly deblocked.
I sold the system where that was working, have now a new one. Maybe the tubes needed overhaul and greasing. I am about to ask Novoflex about that. Officially i couldnt find this function. Expert told he couldnt find in official book.

 

[europanorama]

strange is: Novoflex couldnt confirm its a quick release disc!
NB; we have made M75-M77-adapter. rare adapter for 400 lensheads. impossible to find. not for slim filters. one can use but cap nonworking. size must be changed which we will not.