Description
Article no.: 29176
The NiSi Pro Nano AIR UV 46mm is a high-clarity UV filter designed to protect your lens while preserving optical performance. It combines NiSi’s ULRC (Ultra Low Reflective Coating) technology and premium optical glass to deliver exceptional light transmission, reduced reflections, and effective UV blocking. The filter is suitable for demanding photography situations where maintaining image quality is essential.
This NiSi Air UV Filter achieves a peak transmission rate of 99.9%, making it nearly as transparent as air. The filter’s minimal reflectivity of just 0.1% and an average transmission of 99.6% between 420–680 nm ensure that the filter has very little impact on the light reaching your sensor. These measured optical properties support consistent image quality when used with high-quality lenses.
The Pro Nano AIR UV filter is engineered to support cameras and lenses that exceed 100 megapixels. It maintains resolution and detail so you can use it with high-megapixel systems without worrying about loss of sharpness. This makes the filter suitable for landscape, portrait, and commercial work that demands fine detail retention.
NiSi uses a 48-layer ULRC nano-coating to enhance durability and surface performance. The coating provides scratch resistance and stain resistance, and it adds water-proof and oil-proof properties. These features make the filter more resilient in harsh outdoor environments and help keep the glass clearer for longer periods.
The filter blocks ultraviolet light below 395 nm, which reduces UV-induced interference such as blue haze. By filtering out these wavelengths, the NiSi Air UV Filter helps preserve color accuracy and clarity under challenging lighting conditions.
The Air UV Filter is made from carefully selected, high-end lens optical glass. Each piece of glass undergoes strict quality control. NiSi tests every filter with a Shimadzu spectrophotometer to verify transmission and reflectivity, ensuring consistent optical precision and performance across production units.
NiSi fits the filter into an ultra-thin brass frame. The brass frame offers greater resistance to deformation compared to aluminum and features precise knurling for easy mounting and removal. The slim profile helps prevent vignetting, even when used with ultra-wide-angle lenses.
NiSi Pro Nano AIR UV filters are available in sizes from 37 mm up to 105 mm. This listing covers the 46 mm size.
Packaging includes:
| Specification | Detail |
|---|---|
| Peak Transmission | 99.9% |
| Average Transmission (420–680 nm) | 99.6% |
| Reflectivity | 0.1% |
| UV Blocking | Blocks UV below 395 nm |
| Coating | 48-layer ULRC nano-coating |
| Frame Material | Brass (ultra-thin, knurled) |
| Quality Test | Shimadzu spectrophotometer testing for transmission and reflectivity |
| Available Sizes | 37–105 mm (this product: 46 mm) |
| Included Accessories | NiSi Microfiber Cleaning Cloth |
Question: Is this the 46 mm size of the NiSi Pro Nano AIR UV filter?
Answer: Yes. This product listing is for the NiSi Pro Nano AIR UV filter in the 46 mm size, and NiSi also offers the Pro Nano AIR UV in sizes ranging from 37 mm to 105 mm.
Question: Will the filter affect image sharpness on very high-resolution cameras?
Answer: The NiSi Air UV Filter is engineered to support cameras and lenses that exceed 100 megapixels, maintaining resolution and detail so it does not reduce image sharpness for high-resolution systems.
Question: Can I rely on the filter outdoors in tough conditions?
Answer: The filter features a 48-layer ULRC nano-coating with scratch, stain, water, and oil resistance and is described as suitable for harsh outdoor environments. Its brass frame also improves durability and resistance to deformation compared to aluminum frames.
Question: Does the frame design prevent vignetting on wide-angle lenses?
Answer: Yes. The filter uses an ultra-thin brass frame designed to eliminate vignetting, even when used with ultra-wide-angle lenses, while knurling makes mounting and removal straightforward.
Question: How does NiSi ensure optical quality for each filter?
Answer: NiSi inspects each Air UV filter with a Shimadzu spectrophotometer to verify transmission and reflectivity, ensuring consistent optical precision across production units.
Question: What is included in the package and how can I keep the filter clean?
Answer: The package includes the NiSi Pro Nano AIR UV filter and a NiSi Microfiber Cleaning Cloth. The filter’s ULRC nano-coating provides stain, water, and oil resistance, and the included microfiber cloth is provided for routine cleaning and care.