The Arri MB-18 swing-away Matte Box comes with two sliding trays and one geared tray. All 3 are vertical 4x5.650 format...perfect for using graduated filters when a 4x4 matte box won't do. Available for either 19mm or 15mm lens support rods (iris rods). The Lens Bellows Rings and adapter rings that fit the MB-18 also work with the MB-19, MB-20 and MB-20II.
Arriflex MB-19 2-Stage MatteBox Swing Away Arri MB-19 is a compact, lightweight production matte box which is suited for and flexible for film and video cameras. It accepts all HD zooms such as the Cannon 5x11 or the Fujinon 5x13 HD primes small cine zooms and most cine prime lenses including wide-angle primes up to 14mm.