The cage is extremely light weight (1.3lbs). We've shaved a lot of aluminum out from our previous Talon cage design.
The BMCC cage comes with option to support the Micro Forth Third (MFT) to PL Lens Mount which would enable you to use the BMCC with PL lenses. The Blackmagic Cinema Camera Cage does not require the Camera Interface Plate.
The BMCC is specifically designed for the Blackmagic Cinema Camera. It features 1/4" and 3/8" female threads on the bottom for attaching any standard tripod plate. The BMCC cage is also compatible with the MCS baseplate and tail lock.