Neutral Density Filters, Zomei ND Filter Fader ND2-400 ND2-ND400 Features of Multi-Coated Glass (ND2 to ND400) for Flare Reduction Double anti-reflective coating, ultra-thin frame, only 7 mm thick Protects your lens from dust and scratches and enables variable light reduction from 2 to 8 stops. Use wider apertures to reduce the depth of field, which helps isolate subjects from their surroundings. enables the recording of movement or image blur in subjects like waterfalls, clouds, or any other rapidly moving object using slow shutter speeds with high speed films or digital cameras. This filter features a unique front lens whose diameter is greater than the rear lens's in order to prevent vignetting at wide angle lenses. DETAILS Model ZOMEI Fader ND2-400; Brand ZOMEI