Request InfoAmerican Polarizers Inc.American Polarizers Inc. has announced a new circular polarizer filter with a 50 percent transmission level. Whereas most circular polarizers have maximum transmission levels of around 42 percent, these polarizers assure that more light is transmitted through the filter to the viewer, resulting in a brighter display. The filters are available in standard sheet sizes from 8 × 10 in. up to 18 × 24 in., as well as custom sizes. 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