Compared to another product that I have the polarizing hoya is actually thinner therefore a loss of lower quality on the quality of my photos.Résultat with this filter I have pictures of the closest natural and less supernatural than my other cpl I sometimes create brown clouds. I take off a star because I feel that the waiting time is too long for this type of product that is placed in an envelope to bubble even if shipped in the overseas departments and territories. After as estimated amazon the package is sent to me one week before or on time ...