Consisting of the vocas mb 435 3 stage matte box a 15mm swing away bracket and a 143mm donut adapter ring the vocas mb 435 matte box kit can either be attached to lenses with a front diameter of up to 143mm or mounted onto 15mm rods using the included swing away bracket it is compatible with big lenses large sensors and 3d cameras and can support up to 3 filters one rotatable