Free Express Shipping! Lindsey Optics 138mm Brilliant Rota-Pol Circular Polarizer for 4 x 5.65" Cine Matte Boxes Rotating Circular Polarizing Filter, 2x Filter Factor, +1 Stop, Fits in 4 x 5.65" Cine Matte Boxes, 5.2" Clear Aperture, Geared Rotating...