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High-quality B+W Kaesemann Polarizer is crafted from select polarizer foils and specially prepared optical glass. This neutral polarizer is edge sealed and therefore, it is durable under extreme climatic conditions. The use of this filter is recommended for the most stringent imaging requirements, especially with fast telephoto lenses and apochromatic lenses. It is available in linear or circular. Filter factor is 2.3 to 2.8.
