ND CPL Filter 2 in 1One filter has the ND 8 and CPL filter features nd filter can reduces the light entering the lens extending exposure time the cpl filter can enhance color and contrast of blue sky eleminate glaring came from nonmetal surface.Premium Material Filter made by professional import Japanese AGC optical glass with 28 multilayer coatings.NANOTECOur optical engineers developed new Nano coating layer technology hydrophobic scratchresistant antireflective green coating.Ultra Slim Frame The filter frame is only 5.3mm preventing wide angle vignetting the CNC nonslip frame helps install and remove the filter easily.NoteThis Filter is compatible with all 82mm lenses. Please verify your cameras lens thread sizeusually marked somewhere on the lens barrel or printed underneath the lens cap before ordering. The number is always preceded by a diameter symbol.