The Hoya 52mm Pro-1 Digital Protector Filter is the ultimate in clear filters. It 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. 52mm Pro-1 Digital Protector Filter main features Hoya Pro-1 Digital Filters Digital camera CCD or CMOS sensors are highly susceptible to reflections and this stray light can ruin your photographs. Don't risk your valuable photos by using bare-glass filters - try a Hoya Digital Multi-Coated filter and see how the benefit of substantially reduced reflections can improve your images. Reduced internal reflections mean a clearer image with greater contrast. 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.