ITEM NAME:72mm Professional UV FLD CPL Circular Polarizing Filter for Canon SLR Camera Description: UV Protector filter: protects your camera lens from dust, moisture, scratches and fingerprints provides additional benefits of correction for Ultraviolet(UV) light which can register on film and videotape as a bluish cast and can obscure distant details can be left on the lens at all times CPL Circular Polarizer filter: removes unwanted reflections from non-metallic surfaces such as water or glass increases color saturation, creating deep, rich scenics images add contrast to blue skies and water shots Best for outdoor photography, minimizes haze filter can be rotated to determine the amount of reflection to be removed FL-D Fluorescent Correcting filter: corrects green cast that appears when shooting under general purpose fluorescent lighting dramatically increases color saturation of subjects under natural light Specification: Fits Olympus,Canon, Nikon, Pentax, Sony, and Other Digital SLRs These Filters are manufactured from high quality solid optical glass. Each individual filter is heat treated to avoid any rare movement or distortion The rings are double-threaded, so you can stack filters as needed, and you can even put your lens cap on over the filters Package Includes: 1x CPL Filter 1x UV Filter 1x FLD Filter 1x Carry bag Note: Please check your lens thread and choose the right size when you make order.1x FLD Filter. 1x CPL Filter. The rings are double-threaded, so you can stack filters as needed, and you can even put your lens cap on over the filters. 1x UV Filter. FL-D Fluorescent Correcting filter: corrects green cast that appears when shooting under general purpose fluorescent lighting dramatically increases color saturation of subjects under natural light.