Details

Brilliant white clouds against a deep blue sky or richly colored fall hues are no coincidence. B+W polarizing filters, known as polarizing filters for short, not only increase the purity of inherent colors but also maximize color saturation. Polarizing filters are among the most important filters in analog and digital photography. Since they can be rotated in the mount; the erasing effect can be easily seen in the viewfinder or on the display.
Another effect of B+W polarizing filters is the reduction of reflections on non-metallic surfaces such as water, shop windows, paint. Objects behind them, even lettering behind reflective paint, become recognizable again - a fascinating image enhancement without image processing!
B+W polarizing filters are circular polarizing filters that take into account the differently structured measuring systems of cameras. This is the case with almost all modern cameras when beam splitters are involved in the TTL exposure meter or autofocus beam path. This prevents incorrect exposures.

B+W Käsemann polarizing filters are provided with special pieces of polarizing film that are extremely tightly specified. They have optimum film quality, especially with regard to color neutrality and erasing power. Furthermore, the cover glasses of the cemented film are additionally ground and finely polished, giving the filter glass excellent optical quality. This does not impair the image sharpness of a high-quality shooting lens, which is particularly important for high-resolution digital cameras and aspherical telephoto lenses.