NUANCES Variable ND2-400 filters are designed to reduce the amount of light reaching your camera by between 1 and 8 stops allowing the use of longer shutter speeds or reducing depth-of-field.They are made from high-resolution mineral glass and use innovative technology: A new coating process ensures a totally uniform density with a nano-metallic alloy applied on both sides of highly resistant tempered Schott Glass B270 (renowned for its high transmittance and low reflection). The result is a stunning neutrality completely free of infrared pollution.Nuances Variable ND2-400 filters will catch 1 to 8 f.stops of light making them ideal for long-exposure landscape photography and/or depth of field reduction in unpredictable conditions especially with video shooting.Features:• Stunning colour neutrality totally free of infrared pollution• Reduces light by between 1 and 8 stops• Tempered high-resolution Schott B270 glass• Nano-metallic surface coating for perfectly uniform density• Stackable without colour cast• Available in 52mm to 82mm diametersFeaturesTypeVariable ND Filter Size58mm Filter RangeCokin Nuances