B+W Polarizer High Transmission Circular Master KSM MRC nano 52 mm

These high-end polarizers feature a more precisely specified polarization film, with the film pieces being specially selected. After being bonded between high-quality cover glasses, an additional grinding and polishing process is carried out. This ensures outstanding sharpness even with very fast, apochromatic lenses. The bonding technique provides long-term stability even in humid climates. The generation of Käsemann High Transmission (HTC) polarizers is made with a polarization film that has higher light transmission while still maintaining excellent efficiency. The filter extension factor is only 2 - 3, which corresponds to approximately 1 - 1.5 f-stops.