The best quick coupling on the market?

Quick couplers there are many, but most were for me
unsatisfactory; you have to tighten the place the camera
Press screw on the clutch.
For me a small profit.

The Q = Base is as different (= better).
With the two blue buttons to span the clutch before quasi,
Now set the camera with quick release plate in the
A coupling and these "schnackt" automatically.

The camera is now already for most applications not slip
enough secured, can the mechanism but additionally by
Lock turning silver plate, then slipping out
the camera completely impossible.

I was also put off by the price, but worthy of the quick connector
her name and also the price is justified in my opinion.