The Tiffen Multi Rota Tray with 138mm Circular Polarizer is a geared rotating tray that allows the use and rotation of a 138mm circular polarizer filter and an optional 4×5.65″ circular polarizer in a single 4×5.65″ filter tray. The tray is designed for use with matte boxes that lack a rotating filter stage, or for instances where a secondary rotating filter stage is required in a non-rotating stage.