The CBP-5 is a compact and lightweight baseplate that combines the functionality of a sliding studio bridge plate with a comfortable Visco shoulder pad.n The top of the CBP-5 slides into the bottom of the Balance Utility Dovetail BUD-1 and allows for significant balance adjustment. The improved quick release system, first seen in the CBP-1 for ALEXA Mini and now in its third generation, allows it to be lifted directly off the lower baseplate without having to slide it from the rear. This is particularly useful when using large lenses or when it's necessary to quickly switch from a tripod-mounted configuration to a shoulder configuration.n The CBP-6 accepts 15mm Lightweight and 19mm Studio rods. New structural supports and two tails under the CBP increase the rigidity of the system compared to previous CBP designs.n The CBP-6 is only compatible with the ALEXA 35.