The Chrosziel 450-R31 Triple Stage Matte Box easily fits onto industry standard 15mm support rods and perfectly meets the requirements of shooting with compact camcorders and DSLR cameras, allowing you the ability to have greater control of light angles and lens flare. This matte box offers a triple rotating filter stage, a 16:9 mask, three filter holders that can be adjusted accepting 4 x 5.65" and 4 x 4" glass filters, a French flag, and pivot mechanism for side wings (sold separately). The Chrosziel 450-R31 Triple Stage Matte Box also includes a bracket for 15mm support rods, and a cover end plate with thread 114 + 110mm.