The Clamp-On Accessory for the microMatteBox from Redrock Micro your microMatteBox from rod-mounted swing-away to a clip-on version.
This accessory replaces the microMatteBox rear bellows with a universal clip-on bracket supporting lenses with front outside diameters up to 136mm. With the Clamp-On Accessory, the microMatteBox does not need rod support to be attached. You can switch between clamp-on and swing-away, whatever your shooting style and production requires.
Additional adapter rings will enable you to connect the microMatteBox to various size lenses. It is recommended to use the the Clamp-On Accessory with lenses that do not have a rotating front as your matte box will then rotate as you focus or zoom, which may lead to vignetting. Rotating your matte box with a polarizer or ND Grad, will cause the filter effect to change and become distracting to your audience.