Viewfinder Cross Pipe RMB-3 Set This set contains a Viewfinder Mounting Cross Pipe and a Rod Mounting Bracket RMB-3. The Viewfinder Mounting Cross Pipe is a simple viewfinder bracket that can slide left/right inside the RMB-3. The RMB-3 attaches to any two M4 attachment points that are 20 mm apart. The ARRI viewfinders EVF-1, EVF-2, MVF-1, or MVF-2 can be attached to the dovetail on the Viewfinder Mounting Cross Pipe.
