B+W 77mm XS-Pro Digital HTC Circular Polarising KSM MRC Nano Filter

For this high-end polarising filter the foil pieces are selected individually for maximum color neutrality. Following cementing between high-grade optical glass, additional grinding and polishing takes place. This guarantees outstanding sharpness even with very bright, apochromatic lenses. The latest cementing technique ensures lasting stability even in damp climates. The new generation of Kaesemann High Transmission (HTC) polarising filters is fitted with a new polarising foil which has higher translucency (transmission), yet still provides outstanding effectiveness. The filter extension factor is only 2 to 3, equivalent to approx. 1 to 1.5 f-stops. Available in the F-Pro filter mount exclusively with MRC; in the XS-Pro mount exclusively with MRC nano.