The filters are manufactured and distributed by Alan Gordon Enterprises.
Revar Cine has introduced a 6.6 × 6.6 Rota-Pola filter.
The new tray houses an unmounted 162mm-diameter circular polarizer and is designed to fit into 6.6 × 6.6 top-loading matte boxes. Rotating the polarizer is accomplished by accessing the gears at the top of the tray on either side; there is no need to get a matte box with a rotating stage.
Like the 4x5.65/138mm Rota-Pola, the new Rota-Pola tray is manufactured by Alan Gordon Enterprises in the United States using lightweight, aircraft-grade aluminum and poly materials. It features standard 0.8 pitch gears on both sides of the filter tray (allowing for adjustments to be made from either the operator or assistant side of the camera) and a 1/4" clearance hole for the mounting of a motor.
The included filter is a 162mm-diameter mid-efficiency circular polarizer manufactured from Schott B270 glass. It features 38-percent transmission (1.5 stops of light loss) and Broadband anti-reflective coating. The tray is also available without glass.
The ASC/American Cinematographer booth at NAB is located in the Central Hall at #C8644.