NiSi 40.5mm Air UV Filter - 99.9% Peak Transmission

The NiSi 40.5mm Air UV Protection Filter is a UV filter from Nisi, 40.5mm, with 99.9% peak transmission.

Technical Details

NiSi 40.5mm Air UV Protection Filter with 99.9% Peak Transmission The NiSi Air UV Filter epitomises the zenith of optical craftsmanship, tailored for photographers with an unyielding demand for pristine clarity, exactitude, and safeguarding.

Constructed utilising cutting-edge ULRC (Ultra Low Reflective Coating) technology, it bolsters the comprehensive performance of superior lenses whilst offering steadfast protection against daily risks. It proffers high-resolution imagery without compromising the optical integrity.

Key Features

• Near-Invisible Light Transmission Performance
• High-Resolution Support for Modern Imaging
• Advanced Coating Technology for Durability
• UV Protection and Premium Glass Construction
• Precision Engineering and Professional Build Quality

Near-Invisible Light Transmission Performance

The filter achieves an exceptional 99.9% peak transmission rate, making it virtually as transparent as air.

This performance is made possible through NiSi's independently developed ULRC coating, which reduces reflectivity to just 0.1% and maintains an average transmission rate of 99.6% across the 420 to 680nm range. The result is outstanding clarity and seamless compatibility with premium optical systems.

High-Resolution Support for Modern Imaging

Engineered for advanced photography, the NiSi Air UV Filter is capable of supporting cameras and lenses exceeding 100 megapixels. It preserves fine detail and sharpness across the entire image, ensuring that high-resolution sensors perform to their full potential. Whether used for landscapes, portraits, or commercial photography, it maintains consistent optical performance without image degradation.

Advanced Coating Technology for Durability

The filter features a 48-layer ULRC nano-coating designed to enhance both durability and optical performance. This advanced coating provides resistance to scratches, stains, water, and oil, making it well suited for demanding outdoor environments. It ensures long-term reliability while maintaining clean optical surfaces even under challenging shooting conditions.

UV Protection and Premium Glass Construction

The NiSi Air UV Filter blocks ultraviolet light below 395nm, reducing blue haze and improving colour accuracy and image clarity. It also protects against UV-induced image interference during outdoor or high-altitude shooting. The filter is crafted from carefully selected high-end optical glass that undergoes strict quality control, ensuring consistent performance and exceptional optical purity.

Precision Engineering and Professional Build Quality

Each filter is housed in an ultra-thin knurled brass frame that offers superior durability compared to aluminium alternatives. The frame is resistant to deformation and designed for easy mounting and removal, even in demanding conditions. Its slim profile prevents vignetting on ultra-wide-angle lenses.

Every unit is rigorously tested using a Shimadzu spectrophotometer to verify transmission and reflectivity, ensuring consistent professional-grade performance.