NiSi Filter UV SMC L395 46mm

NiSi Filter UV SMC L395 46mm – Ultra-thin 3 mm, cuts UV light under 395NM

The NiSi Filter UV SMC L395 in 46mm size reduces ultraviolet light below 395NM while protecting your lens front element. Its ultra-thin 3 mm aluminum frame suits wide-angle lenses and helps avoid vignetting. Additionally, the filter uses high-quality Japanese optical glass and double-sided multi-coating for reliable optical performance.

Key design features

The frame uses high-quality aluminum and measures only 3 mm in thickness. Therefore, the filter fits well on super wide-angle lenses and minimizes the risk of vignetting. Meanwhile, superfine dull polishing and careful knurling reduce cosmetic wear; as a result, the frame resists blanching from repeated rotation.

Furthermore, the front of the frame includes a screw thread. This thread makes it easy to attach a lens cap or other accessories directly to the filter.

Optical properties and coatings

The filter cuts UV light under 395NM, which reduces unwanted ultraviolet influence on your images. In addition, NiSi applies multi-coating on both sides of the glass to lower reflections and improve light transmission. The optical glass itself is high quality Japanese glass, chosen to achieve very high transmittance and a smooth surface.

Also, the outer side of the filter features a hard waterproof and oil-repellent coating. Consequently, the surface resists water and oil and remains easy to clean, helping maintain consistent image quality and prolonging the filter’s usable life.

Practical benefits

• Ultra thin, only 3 mm: Minimizes vignetting effect on wide-angle lenses and fits closely without intruding into the field of view.
• Multi coating on both sides of the filter: Reduces reflections and increases light transmission for clearer images.
• High quality optical glass for high transmittance (>98.3%) and highly smooth surface with low reflection (0.5%): Supports accurate light passage and low surface reflection for better contrast and color fidelity.
• Protect the lens from dust, damage to the front element: Provides a first line of defense against scratches, dust, and light impact to the lens’s front element.
• Hard waterproof and oil repellent coating on outer side: Helps repel water and oils, making the filter more durable and easier to maintain in the field.
• Easy to clean: The coatings and smooth glass surface allow for straightforward cleaning to remove fingerprints, smudges, or debris.

Specifications

FAQ

Question: What does this UV filter actually do?

Answer: The NiSi UV SMC L395 cuts ultraviolet light under 395NM, which reduces UV-related haze and helps preserve image clarity while also protecting the lens front element from dust and damage.

Question: Will the ultra-thin 3 mm frame prevent vignetting on wide-angle lenses?

Answer: Yes. The ultra-thin 3 mm aluminum frame is designed to minimize vignetting on super wide-angle lenses, so you can use the filter without significant corner darkening on wide fields of view.

Question: How easy is the filter to clean and maintain in the field?

Answer: The filter has a hard waterproof and oil-repellent coating on the outer side and a smooth glass surface, so it repels contaminants and remains easy to clean with standard lens cleaning tools.

Question: Can I attach a lens cap or accessories to this filter?

Answer: Yes. The front of the frame includes a screw thread, which allows easy installation of a lens cap or other compatible accessories directly onto the filter.

Question: Is the product environmentally compliant?

Answer: Yes. All materials used in the filter meet the European Union's ROHS requirements and contain no hazardous substances, ensuring compliance with relevant environmental protection standards.