This Benro SHDMCPL82 82mm SHD Magnetic Circular Polarizer ULCA WMC CPL Filter can remove reflection of the water , glass other surfaces to achieve the effect of sky blue and clear water. Fits Lenses with 82mm Filter Threads Helps to Eliminate Reflections and Glare Reduces Haze in Landscapes Greater Color and Tonal Saturation Please note : This magnetic filter cannot be used alone. It needs to be used with a 82mm Magnetic Fixed Ring / Magnetic Step Down Ring to attach the magnetic filters onto the lens. If your lens is a different size thread, you may purchase 82-67mm / 82-77mm Magnetic Step Down Rings to suit other sizes of lens.