NiSi Filter Pro Nano AIR UV 37mm

NiSi Filter Pro Nano AIR UV 37mm – 99.9% Transmission for Clear Image Protection

The NiSi Pro Nano AIR UV 37mm filter protects your lens while preserving image clarity. It uses NiSi’s ULRC (Ultra Low Reflective Coating) technology to deliver extremely high light transmission and low reflectivity. Photographers who use high-resolution cameras will find this filter maintains detail and color accuracy during outdoor and studio work.

Key optical performance

The Air UV filter achieves a peak transmission of 99.9% and an average transmission of 99.6% in the 420–680nm range. In addition, it maintains minimal reflectivity at just 0.1%. As a result, the filter passes light cleanly with very little loss and reduces unwanted reflections that can affect contrast and color.

Designed for high-resolution cameras

The Pro Nano AIR UV supports cameras and lenses that exceed 100 megapixels. Therefore, it preserves sharpness and fine detail when you shoot landscapes, portraits, or commercial projects where resolution matters most.

Durable, advanced nano-coating

NiSi applies a 48-layer ULRC nano-coating to the glass. This coating provides several protective properties:

• Scratch resistance — helps protect the optical surface from abrasions during handling and use.
• Stain resistance — reduces the chance of marks that interfere with image quality.
• Waterproof and oil-proof properties — simplifies cleaning and helps repel moisture and fingerprints in challenging environments.

These features make the filter suitable for demanding outdoor conditions where durability and easy maintenance are important.

UV blocking and color fidelity

The filter blocks ultraviolet light below 395nm. This reduces blue haze and UV-induced interference, which improves color accuracy and image clarity in situations where UV light can affect the final image.

Premium optical glass and strict quality control

NiSi uses carefully selected lens-grade optical glass for this filter. Each piece of glass undergoes rigorous inspection and testing. In particular, NiSi verifies transmission and reflectivity using a Shimadzu spectrophotometer to ensure consistent optical performance across production.

Frame design and handling

The filter uses an ultra-thin brass frame with knurling. The brass construction resists deformation more effectively than aluminum and provides a durable mounting surface. The precise knurling makes the filter easy to mount and remove, while the ultra-thin design helps prevent vignetting when used with ultra-wide-angle lenses.

Use cases

Because of its optical clarity, high transmission, and protective properties, the NiSi Pro Nano AIR UV 37mm is useful for:

• Landscape photography, where detail and color fidelity are critical.
• Portrait and commercial work, where preserving sharpness and avoiding color shifts matters.
• Outdoor and travel photography, where dust, moisture, and rough handling are more likely.

Features

• 99.9% Transmission Clarity - Achieves a 99.9% peak transmission rate with ULRC coating for minimal light loss and compatibility with premium lenses.
• 100-Megapixel Compatibility - Maintains resolution and detail for high-performance cameras that exceed 100 megapixels.
• Advanced 48-Layer ULRC Coating - Nano-coating provides scratch, stain, water, and oil resistance for reliable performance in harsh environments.
• Blocks UV Light Below 395nm - Reduces blue haze and UV-induced interference to keep colors vibrant and images sharper.
• Premium Optical Glass - Made from lens-grade glass, selected and tested to support high optical performance.
• Ultra-Thin Brass Frame - Durable brass frame with slim profile to avoid vignetting; knurling ensures easy installation and removal.
• Exceptional Reflectivity Control - With just 0.1% reflectivity, the filter minimizes glare and reflections for cleaner images.
• Precision Tested for Quality - Each filter is tested for transmission and reflectivity with a Shimadzu spectrophotometer to guarantee optical precision.
• Lens Protection and Image Enhancement - Shields your lens from dust, scratches, and moisture while preserving the imaging potential of high-quality lenses.
• Perfect for Outdoor Shooting - Built to withstand outdoor conditions commonly encountered in landscape, travel, and field photography.

Packaging includes

• NiSi Pro Nano AIR UV Filter
• NiSi Microfiber Cleaning Cloth

Available sizes

NiSi Pro Nano AIR UV filters are available in sizes from 37mm to 105mm. This particular listing is for the 37mm size.

FAQ

Question: Will the NiSi Pro Nano AIR UV 37mm affect sharpness on very high-resolution cameras?
Answer: No. The filter is engineered to support cameras and lenses that exceed 100 megapixels, so it preserves fine detail and overall sharpness.

Question: How does the ULRC nano-coating help in the field?
Answer: The 48-layer ULRC coating reduces reflectivity and increases transmission while adding scratch, stain, water, and oil resistance. This makes cleaning easier and improves durability during outdoor shoots.

Question: Can this filter reduce haze and UV-related color issues?
Answer: Yes. The filter blocks UV light below 395nm, which helps reduce blue haze and UV-induced interference, improving color fidelity and clarity in challenging lighting.

Question: What comes in the box and how do I maintain the filter?
Answer: The package includes the NiSi Pro Nano AIR UV filter and a NiSi microfiber cleaning cloth. Use the supplied cloth and a gentle cleaning routine to remove dust and fingerprints without damaging the nano-coating.