Lindsey Optics 138mm Brilliant2 Rota-Pol Circular Polarizer for 4x5.65" Cine Matte Boxes

Brilliant² Rota Pol The Lindsey Optics Brilliant² Rota Pol is designed to fit 4” x 5.65” cine matte boxes and allow simple and effective rotation of the included 138mm Round Brilliant-Pol Circular Polarizer. A Rota-Pol polarizing filter is sometimes called a RotaPola  . . . it's the same type of product. Large Diameter Clear Aperture The included large 138mm diameter polarizer gives a large 5.1" clear aperture, useful even with wide angle lenses and large zoom lenses. Quick and Sure No-Slip Rotation Rotation of the polarizer can be done by spinning either of the two thumb wheels by hand or with a motor mounted on the 1/4–20 thread in the handle. Our superior mechanical design includes an all-aluminum main gear in which the138mm Brilliant Pol Circular Polarizer filter is mounted. That main gear rests on internal Delrin™ rollers for smooth rotation no-slip rotation, The main gear is driven by aluminum thumb wheels that are geared with standard 0.8 pitch gear teeth for use with motorized