This filter 10 stop fixed neutral density filter exposure correction, not variable. | 【ND Filter Function】Reduce the amount of light by 10 stops, long-time exposure tool helps to achieve slow shutter speeds to be used on record objects movement such as waterfalls, presenting a silky smooth effect of flowing water. | 【Premium Material 】This ND1000 lens filter made by import Japanese AGC optical glass, 0.2% reflectivity, no color cast; Aviation aluminum alloy frame, super slim and lightweight, avoiding vignetting on the wide-angle lens. Extra tough frame ensuring durability and jamming prevention. | 【Nanometer Coatings】Hydrophobic, scratch-resistant, anti-reflective green coating, effectively prevents oil, fingerprint, scratch, protects the valued camera lens. | 【28 Multi-Layer Coatings】Multi-Layer coated process suppresses ghosting, flare, and reflections, and increases light transmission; effectively reducing the light reflection of the surface, and improving image quality. | 【Note】The 55mm fixed nd filter ONLY be used on 55mm lens, please verify your lens size before ordering, this number is always preceded by a "ø" (diameter) symbol. | New and old packages are sent randomly