Our Variable ND2–400 Filter provides 1 to 8.66 f-stops of light reduction, giving you greater creative control in changing light. By blocking 1 to 8.66 f-stops, you can use wider apertures in variable light for shallower depth of field effects, and slower shutter speeds for long exposure effects without overexposing your images. Cinematographers can use our ND2–400 Variable ND Filter to create more cinematic effects in low and bright light. For wide-angle lenses, we recommend our Variable ND2-32, ND8-128, ND64-1000 or fixed ND filters. Better depth of fieldBeautiful depth of field with wider apertures. Longer motion blurCut 1 to 8.66 f-stops for stronger long exposure. More cinematicSlow your shutter for a more cinematic look. Japanese AGC glassOur premium Japanese AGC optical glass is coated with an 8-layer nano-coating for excellent clarity and light transmittance, added protection and easier cleaning. Ultra-slim rimOur consciously designed ultra-slim rim avoids vignetting and our durable magnalium is guaranteed for life. Double-threadedAll our filters are double-threaded for stacking filters or using screw-mount lens caps. Filter TypeVariable ND2-400 Nano Coating 8-Layers Grade Japanese AGC Density .3 to 2.6 (1 to 8.66 Stops) Effect Cuts 50% to 99.75% of light