For sale: New, in box, Kenko Pro1 Digital Wide Band Circular Polarizer filter, 55 mm. This filter allows you to remove unwanted reflection from nonmetallic surfaces such as water and glass. Kenko's CIRCULAR PL uses newly developed, innovative polarizing material. More details on Kenko Pro1D series of filters can be found here: http://www.kenkoglobal.com/photo/filters/pl/pro1d_wide_band_circular_pl_w.html