... Transmittance is over 99.2%. Thickness is 5.5mm. Digital camera 52mm Multicoat UV Filter Type: 52mm MCUV fillter(other ... : 5.5mmWeight: 38gColour:Black protection for your lensProtects your camera lens from all dust, dirt, moisture, scratches and fingerprints ... finish almite frame, which reduces reflections. Low Profile FrameUltra-thin filter frames, which help to avoid vignetting on super wide ...