NiSi 4×5.65" Full Spectrum ND 0.9

Professional Light Control with NiSi Full Spectrum ND

The NiSi 4x5.65" Full Spectrum ND 0.9 is a precision-engineered cinema filter designed to provide 3 stops of light reduction. Unlike standard ND filters, the Full Spectrum (FS) range ensures even light transmission across ultraviolet, visible, and near-infrared wavelengths. This results in perfectly neutral colors and the retention of fine granular details, making it an essential tool for high-end cinematography.

Superior H-K9L Optical Glass

Constructed from environmentally sustainable H-K9L crown glass, this filter matches the quality of industry-standard SCHOTT N-BK7. Each filter undergoes a rigorous precision annealing process. This carefully timed heating and cooling protocol eliminates internal stress and prevents glass deformation, ensuring a perfectly flat surface for maximum sharpness even at long focal lengths.

Advanced Titanium Nano Coating

NiSi has developed a specialized double-sided "Ti" (titanium) attenuation film combined with an anti-reflective coating. This technology significantly reduces glare and prevents light from bouncing between the lens and the filter. Additionally, the filter features:

• Hydrophobic and Oleophobic layers: Resists water and oil for quick cleaning on set.
• Matte Edge Coating: Imported Japanese matting prevents ghosting and internal reflections.
• Permanent Stability: Optical properties are baked into the glass and will not fade over time.