B+W "Käsemann" polarizers are manufactured with a polarizing foil of extremely strict and exacting specifications. In terms of color neutrality and extinction capability, the foil quality is ideal. Furthermore, the glass used for this filter is sanded and fine-polished for excellent optical quality and the advanced cementing technique prevents delamination in environments of high humidity. This filter does not impair the image sharpness of high-quality photographic lenses, which is particularly important in high-resolution digital cameras and aspherical tele lenses.
B+W Premium Line: XS-PRO Digital B+W coating: MRC nano
B+W Professional Line: F-PRO, oversized, series B+W coating: MRC