CPL (Circular Polarizer Filter) The CPL filter is used to increase color saturation darken blue skies so white clouds stand out and removes unwanted reflections from surfaces such as water and glass, it will also reduce the softness scenery caused by atmospheric haze. This filter will not change the overall color balance of photograph UV (Ultraviolet Filter) The UV filter is considered a standard accessory for every camera. The size is designed to fit the threads in front of your lens. Serves to protect your lens from all dust, dirt, scratches and fingerprints. It also absorbs the Ultraviolet rays of the sun thereby reducing or eliminating distortion FLD (Fluorescent Filter) The FLD fluorescent light correction filter gives true to life color rendition by removing the harsh yellow green cast ordinarily resulting from fluorescent bulbs. When shooting under natural light, fluorescent filter dramatically increases color saturation of subjects. Package includes UV Filter, FLD Filter, CPL Filter, Filter Case, Lens/Filter ring adapter, 3 year manufacturer warranty