CHEWA-BV Matte Box  is apply to HDV and DV canemra. it can insert two 4 × 4 or 4 × 5.65 of the filter box, and be able to put two pieces of 4 × 4 or 4 × 4.65 of the filter , there is above and about three-leaf shading plate, which is 16:9 shell. 85 mm 95 mm There are two types of use will require supporting bar for SONYDVW-790, HDW-970, HDW-F900R, Panasonic's AK-HC3500MC, AJ-D615MC, AJ-D815MC, AJ-D913MC, etc.