52mm Circular Polarizing Multi-Coated Glass Pro 1 Digital Filter
TheHoya Pro 1 Digital Circular Polarizertakes advantage of Hoya's patented optical glass technology to create a hardened glass that is thinner than the normal optical glass. This allows the overall thickness of the filter to be reduced to avoid vignetting when used with ultra-wide angle lenses.FEATURESDigital Multi-CoatedDigital multi-coated filters greatly reduce the appearance of lens flare and ghosting caused by reflections.Black Almite FrameFilters feature a black matte aluminum satin finish Almite frame which reduces reflections.Black Rimmed GlassThese filters are equipped with black rimmed glass to reduce the chance of light reflecting off the edge.Low Profile FrameUltra thin filter frames to help avoid vignetting on super wide angle lenses are also designed to hold a lens cap.Knurling Edge FrameThese filters are equipped with a straight knurling edge for non-slip, easy attachment and removal.UV Protected CaseFilter cases are UV protected to further lengthen the life of filters.