The Arri MB-28 swing-away Matte Box comes with two sliding trays and one geared tray. All three are vertical 6×6″” format. Mounted with 19mm bars and supplied with a set of mattes, side flags and top flag.
This is ARRI’s mattebox designed specifically to fit the Angenieux Optimo 24-290mm zoom in addition to prime lenses. One three-stage mattebox can now cover both needs.