... , polish diminished and lens becomes soft & blurred. Filter helps protecting your camera lens against dust,moisture,fingerprints, ... CCDs behind the camera lens are sensitive to ultra-violet rays, although they are invisible to our ... filter,such as ND filter,CPL filter,MC-UV filter,close-up filter,graduated filter,color filter,skylight filter,star filter,fld filter,soft effect filter,IR filter,PL filter ...