The Wimberley C-10A Quick Release Clamp is a 60mm-long Arca-style quick release clamp that has been specifically designed to fit on the geometry of the Arca-Swiss Z1 Monoball head. The fit between the Z1 and this clamp is absolutely secure; a ridge below the clamp matches a ridge on top of the Z1, and the clamp is held in place by a M6-type screw.
The C-10AS is superior to Arca-Swiss' own style of clamp, with stronger aluminum as well as an increased range of permissible fore/aft movement for the plate when inside the clamp. With a large piece of gear, this might be the difference between an ideally-balanced load and a load that's out of balance.
Super-Strong 7075 T6 Aluminum
Wimberley uses 7075 T6 series aluminum for the C10AS clamp, which is a standard within the aviation industry and amongst the world's strongest aluminum alloys. It is heavily alloyed with zinc to be incredibly strong and durable, with superior tensile and yield strength thresholds than 6061 T6 aluminum alloy.
Accepts all Arca-Type Quick Release Plates
The Wimberley C10AS clamp will securely hold any manufacturer's Arca-type quick release plate, available from a host of manufacturers.
Captive Locking Screw
The clamp's locking knob cannot accidentally fall off from being unscrewed too far.
Built for Tough Use
Wimberley's C10AS clamp has a tongue-in-pocket design which protects internal parts from dust and grit. The spring-loaded moving jaw communicates brilliantly to your hand that the camera's quick release plate and the jaw are in contact.
Grooves Allow Extended Motion
Shallow channels extending from the C10AS clamp's sides stop just short of the central tapped hole, allowing great fore-aft adjustment when using the safety stops on Wimberley's (and others) quick release plates.