NiSi Filter Pro Nano AIR UV 49mm

NiSi Filter Pro Nano AIR UV 49mm – 99.9% Transmission for Crystal-Clear Protection

The NiSi Pro Nano AIR UV 49mm filter offers high transmission and reliable lens protection for photographers seeking clarity and durability. It uses NiSi’s ULRC (Ultra Low Reflective Coating) technology to deliver near-air transparency while shielding your lens from everyday hazards. This description covers performance, coatings, construction, compatibility, and what you receive in the package.

Exceptional light transmission and low reflectivity

The NiSi Air UV Filter achieves a peak transmission of 99.9%, making it effectively as transparent as air. In addition, reflectivity measures as low as 0.1%, which minimizes glare and unwanted reflections. On average, the filter maintains 99.6% transmission between 420–680 nm, supporting accurate light passage across a key portion of the visible spectrum.

Engineered for high-resolution cameras

This filter supports cameras and lenses that exceed 100 megapixels. Therefore, it retains fine detail and resolution for high-performance imaging tasks, including landscape, portrait, and commercial photography. In short, it is suitable when you need to preserve sharpness with very high-resolution capture systems.

Advanced ULRC 48-layer nano-coating for durability

The filter features a 48-layer ULRC nano-coating designed to increase longevity and resist common contaminants. The coating provides multiple protective properties:

• Scratch resistance
• Stain resistance
• Waterproof and oil-proof properties

These properties help the filter withstand challenging outdoor conditions and frequent professional use, while simplifying maintenance and cleaning.

Blocks UV below 395 nm for clearer images

The NiSi Air UV Filter blocks ultraviolet light below 395 nm. By reducing UV-induced interference and blue haze, it helps improve color accuracy and overall image clarity, especially in bright or high-altitude conditions where UV light can affect results.

Premium lens-grade optical glass

The filter is made from carefully selected high-end optical glass. NiSi subjects each piece of glass to strict quality control to ensure consistent optical performance. This selection process supports image integrity and predictable results across shoots.

Ultra-thin knurling brass frame for durability and ease of use

The filter uses an ultra-thin brass frame with precise knurling. The design focuses on practical benefits:

• Greater durability and resistance to deformation compared to aluminum frames
• Easy mounting and removal thanks to the knurling design
• Ultra-thin construction to eliminate vignetting, even with ultra-wide-angle lenses

Overall, the brass frame aims to provide a secure fit and a hassle-free user experience when attaching or removing the filter in the field.

Precision testing and consistent quality

NiSi tests every Air UV Filter using a spectrophotometer to verify transmission and reflectivity. The company uses a Shimadzu spectrophotometer in its quality control process to ensure each unit meets the stated optical standards and delivers consistent, repeatable performance.

Available sizes and intended use

NiSi Pro Nano AIR UV filters are available in sizes from 37 mm to 105 mm. The 49 mm model described here fits lenses with a 49 mm filter thread and is designed for photographers who want protection without compromising imaging potential. It is particularly suited for outdoor shooting, including landscape and travel photography.

Features

• 99.9% Transmission Clarity - Achieves an incredible 99.9% peak transmission rate with ULRC coating, making it as clear as air. Perfectly compatible with premium lenses for optimal image quality.
• 100-Megapixel Compatibility - Retains exceptional resolution and detail when used with high-performance cameras exceeding 100 megapixels, ensuring no loss of image sharpness.
• Advanced 48-Layer ULRC Coating - Features 48-layer nano-coating for scratch, stain, water, and oil resistance, delivering durability and reliable performance in harsh environments.
• Blocks UV Light Below 395nm - Reduces blue haze and UV-induced interference, ensuring vibrant colors and sharper images even in challenging lighting conditions.
• Premium Optical Glass - Made from high-end lens-grade optical glass, rigorously selected to enhance optical performance and maintain image integrity.
• Ultra-Thin Brass Frame - Durable brass frame with a slim design to prevent vignetting on ultra-wide-angle lenses. Knurling ensures easy installation and removal.
• Exceptional Reflectivity Control - With only 0.1% reflectivity, this filter minimizes glare and reflections, ensuring superior light transmission and cleaner images.
• Precision Tested for Quality - Each filter undergoes strict transmission and reflectivity testing with a Shimadzu spectrophotometer for guaranteed optical precision.
• Lens Protection and Image Enhancement - Protects your lens from dust, scratches, and moisture while maintaining the full imaging potential of your high-quality lenses.
• Perfect for Outdoor Shooting - Designed to withstand tough conditions, making it ideal for landscape, travel, and outdoor photography without compromising image quality.

Packaging includes

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

FAQ

Question: Will the NiSi Pro Nano AIR UV 49mm cause vignetting on ultra-wide-angle lenses?
Answer: The filter uses an ultra-thin brass frame specifically designed to reduce the risk of vignetting, even on ultra-wide-angle lenses, so you can use it without compromising your field of view.

Question: Is this filter suitable for very high-resolution cameras over 100 megapixels?
Answer: Yes. The NiSi Air UV Filter is engineered to support cameras and lenses that exceed 100 megapixels, helping to preserve fine detail and maintain sharpness.

Question: How does the ULRC nano-coating handle everyday contaminants like oil and water?
Answer: The 48-layer ULRC nano-coating provides scratch resistance, stain resistance, and waterproof and oil-proof properties, making cleaning easier and protecting optical performance in challenging conditions.

Question: What optical testing verifies the filter’s performance?
Answer: NiSi tests each filter using a Shimadzu spectrophotometer to confirm transmission and reflectivity values, ensuring consistent optical precision across units.

Question: What comes in the box with the 49mm filter?
Answer: The package includes the NiSi Pro Nano AIR UV Filter and a NiSi microfiber cleaning cloth, so you receive both the filter and a tool for safe cleaning and maintenance.