Hoya REVO CIR-PL filters allow you to remove unwanted reflections from non-metallic surfaces such as water and glass by rotating the filter frame. They also enable colours to become more saturated and appear clearer with better contrast. Hoya's SMC (Super MultiCoating) is applied to both front and rear glass surfaces to increase light transmission and prevent reflections. The coating is further protected with a clear water and stain resistant surface to allow easy care and handling of REVO filters in the field. All Hoya REVO filters have Super-Slim aluminium filter frames to avoid vignetting and make them compatible with super or ultra-wide-angle lenses.