When light reflects, this often creates a whitish haze; an effect known as ââ¬Ëpolarizing. Okko CPL Circular Polarizing Filters cut out this haze, allowing you to capture crisp, clear images. If youve ever wanted to see deep blue skies or ensure that your images appeared clearer with better contrast then these filters will do just that. As with all our filters, CPL filters are constructed from high quality black Matt aluminium and optical glass. Enable colors to become more saturated and appear clearer with better contrast Multiple Nano Coatings Ultra-high definition Ultra-thin filter frames to help avoid vignetting Eliminates reflections and glare Greater color and tonal saturation, reduces haze in landscape shots Designed to have any lens cap attached All weather sealed Adjustable polarization