Focus Camera 58mm 3-Piece Filter Kit with UV, Circular Polarizer and Fluorescent Filter COMPATIBILITY: Designed to fit a 58mm thread UV FILTER: Sharpen image contrast with the UV Protective Filter CPL FILTER: The CPL Filter eliminates reflections from glass and water FLD FILTER: Improve the natural tones when taking pictures under fluorescent lighting with the FLD filter FEATURES: High quality optics that are heat-treated and multi-coated to avoid distortion