Fotasy 72mm Adjustable Fader ND Filter Neutral Density (ND2 - ND400) Multi-Coated Japan Glass Made in Japan. Pro Digital multi-coated filters greatly reduce the appearance of lens flare and ghosting caused by reflections. Easy to adjust neutral density freely from ND2 to ND400. Apply slow shutter speed under strong sunlight exposure, large aperture is available to create depth of field easily. Offers the best image performance with lens with focal length 200mm below; image quality may drop when focal length above 200mm.