Circular polarizing filters allow photographers to achieve creative, in-camera effects that are not possible after the image is created. A polarizing filter filters unwanted reflections from non-metallic surfaces such as water or glass, as well as light that reflects moisture and contaminants in the atmosphere. HOYA FUSION ONE is a new filter series based on the new HOYA optical technology. It replaces the successful long-seller HOYA PRO1 Digital series, which has been widely used by amateur and professional photographers around the world. HOYA FUSION ONE complements the HOYA filter product line by merging all the highly valued basic specifications, such as multi-layer coating, ultra-high light transmission, high quality optical glass and low profile frame, while newly incorporating a dirt and water repellent coating to meet the new standards in the photographic optical accessories industry.