Absorbs the ultraviolet rays which often makes outdoor photographs hazy and indistinct. A multi-purpose filter for color as well as black and white films. Also serves as a permanent lens protector. Pro Optic Pro Digital Multi Coated Filters are renowned for their ability to minimize reflection and reduces flare and ghosting. The result is an average light transmission of over 97%, giving sharp contrast and well balanced color. Pro Optic Pro Digital Multi Coated filters are recommended for enhancing the performance of todays multicoated lenses.