Nisi 55mm 4-Stop Variable Neutral Density Filter for True Color VND & Swift System

This 4-stop ND filter for the NiSi True Color VND and Swift System increases the range of the NiSi True Color 1-5 stop variable ND filter to a 5-9 stop ND, making it ideal for bright conditions that require stronger light reduction. By adding more density, it allows photographers to shoot with wider apertures for better depth of field control or use longer shutter speeds to create motion blur and artistic effects. It can also function as a standalone ND filter when used with the Swift Friction Mount System adapter ring. Constructed from high-quality optical glass, the filter features an anti-reflective multi-coating that minimizes lens flare and enhances light transmission. A durable nano coating provides waterproof protection, making it suitable for use in challenging outdoor environments. This filter delivers full-spectrum 4-stop light reduction with accurate True Color performance, a precise Multi-Ti coating, and is designed to avoid vignetting even when used with wide-angle lenses. The adapter ring needed for mounting is sold separately.