The high-end polarizing foils of the Kasemann-type filters are neutral in color, they have a higher efficiency than conventional polarizing foils and they are cemented between high-grade plano-parallel optical glass. The resulting sandwich is then precision-polished again to achieve highly accurate plano-parallel surfaces. Subsequently they are edge-sealed to protect the foil against humidity. Brass mounts made on CNC-controlled machines ensure precise seating on the lens. Discriminating photographers regard the B+W Kasemann-Type Polarizing Filter to be the very best of all polarizing filters. They are well suited for applications that require the highest possible imaging quality, especially with high-speed telephoto lenses and apochromatic lenses.
Features
a) Rugged Brass Filter Ring
b) High Quality Schott Glass
c) Filter factor varies according to how the filter is rotated and its orientation to the sun.
d) Polarizing filters are used to select which light rays enter your camera lens
e) They can remove unwanted reflections from non-metallic surfaces such as water or glass and also saturate colors providing better contrast.Used for 'cool' mood.
h) Combines with Red filters for incredibly dramatic black and white landcsapes.
