HOYA PRO 1 Digital Protector - 55mm is the ultimate in clear filters and is designed specifically to protect the lens on your digital camera. The Hoya Digital Protector will not affect the colour balance or performance of your lenses in the slightest. However, constant use will protect your valued lenses from expensive front element damage which could be caused by dirt, knocks or scratches - Digital Multi-Coated Digital multi-coated filters greatly reduce the appearance of lens flare and ghosting caused by reflections. - Black Almite Frame Filters feature a black matte aluminium satin finish almite frame which reduces reflections. - Black Rimmed Glass These filters are equipped with black rimmed glass to reduce the chance of light reflecting off the edge. - Low Profile Frame Ultra thin filter frames to help avoid vignetting on super wide angle lenses are also designed to hold a lens cap. - Knurling Edge Frame These filters are equipped with a straight knurling edge for non-slip, easy attachment and removal. - UV Protected Case Filter cases are UV protected to further lengthen the life of filters.