Runshuangyu 3Pcs Set 4x4 Full Neutral Density ND2 +ND4+ ND8 Filter ND2 4 8 ND Filter with Bag for Swing Away Matte Box Holder

Ideal for reducing bright light in large aperture situations when a narrow depth is field is needed. Allows for slower shutter speeds when blurring or showing of movement is desired. Allows balancing of exposure to highlight a key subject. A mattebox really makes it easy to transition between different lenses when your camera is sitting on the rig. Assuming that each lens has a different lens cap diameter - you would have to have ND filters or other filters to fit each lens. Size: 4" x 4" (10cm x 10cm)