Features and Functions: UV Filters reduce haze and improve contrast by minimizing the amount of ultraviolet (UV) light entering the lens. Especially effective at high altitudes and snowy regions. CPL Filters (Circular Polarizer) are great for removing unwanted reflections from non-metallic surfaces, such as glass or water. Mounted on a rotating frame, this filter can be adjusted to block different levels of reflection. FLD Filters allow for enhanced quality shots under fluorescent lighting. Bring warm, natural light to rooms that would otherwise be washed out by unappealing fluorescent lights. Description: Professional Glass 3-Piece Filter Kit Consists Of; 1x Ultra Violet (UV), 1x Circular Polarizer (CPL), 1x Fluorescent (FLD) Filter and a hard protective case.Items Included: 49mm UV/Protection Filter 49mm C-PL Circular Polarizer Filter 49mm FLD Fluorescent Filter Hard Protective Case