Super filter whose optical properties can be proud of. On the EOS 5D, the filter does especially well in winter landscapes and mountain photos. Revamped vehicles give very different pictures with the filter - washers and paint can reflect either or reflect depth in color. What, however, after many (years) Product Reviews is incomprehensible: Why is it creates the company of such high value-filter not to finally develop a protective cover with screening, the safe protects the filters and you do not / hang bag remains when removing the camera from the backpack or "fall off" easy on warm days ?!