Cavision MB4510-H2EX1R 4x5.65 Hard Shade 16x9 Matte Box

Overall I found this to have exceeded my expectations, however there are a few minor issues. The rotating filter stage is a bit sticky in a few places, I'm going to contact Cavision and see if this is common. The mounting system for the rods, while generally good and very solid - it creates an issue if you plan on using a follow focus system. The part of the mount that holds the rods extends too far forward and doesn't allow much room to fit a follow focus system on the rods. If your FF fits, there is still no room to fit a servo for iris or zoom control. The nice thing about it however, it moves the tripod mount closer to the front of the camera and helps make the setup more balanced on a tripod. Cavision makes a different, non-quick release system that would be more suitable for the EX1, as it can be setup in either position (extending forward under the lens, or in a C shape under the cameras tripod mounting point). The french flap is a nice addition to the package, but doesn't come off easily - it requires removing 4 screws, which can be time consuming.