Evershop&reg;KAZA 72mm UV Protective Filter Most popular protection filter,provides basic reduction of ultraviolet light The material is Japan's AGC glass,the total thickness of the frame:3mm Caliber:72mm Haze UV Filter Lens Protect,helps eliminate bluish cast in images The material of frame: Aluminum alloy The transmittance is 93%,Evershop UV Protection filter Film, as well as video, often exhibits a greater sensitivity to what is to us invisible, ultraviolet light.