The Neewer 58mm 3-piece filter kit features a UV protector filter, Circular Polarizer (CPL) filter, and Fluorescent (FLD) filter. Designed for 58mm lenses, it protects against dust/scratches, enhances colour saturation, reduces glare, and corrects colour balance in mixed lighting. UV Filter (Ultraviolet): Absorbs UV rays to reduce haze and acts as a permanent, protective lens cover. CPL Filter (Circular Polarizer): Removes unwanted reflections from non-metallic surfaces (water, glass) and increases color saturation/contrast. FLD Filter (Fluorescent Light Daylight): Corrects the greenish "tint" when shooting under fluorescent lighting, producing natural light colours.