NiSi Filter UV SMC L395 82mm

NiSi Filter UV SMC L395 82mm – Ultra-thin 3 mm UV filter that cuts light under 395 nm

The NiSi Filter UV SMC L395 in 82mm size blocks ultraviolet light below 395 nm. It uses high quality Japanese optical glass and a double-sided multi-coating to maintain image clarity. Because the frame is ultra-thin—only 3 mm—the filter fits well on super wide-angle lenses and helps avoid vignetting and unwanted reflections.

Design and materials

The filter uses Japanese optical glass to ensure high transmittance and a smooth surface. Additionally, NiSi applies a special double-sided multi-coating that reduces reflections and preserves image contrast. The outer side features a hard waterproof and oil-repellent coating, so the surface resists water and oils and stays easier to clean.

Frame construction and handling

NiSi designed the frame with superfine dull polishing and elaborate knurling to prevent blanching from repeated rotation. In other words, the finish holds up under regular use. Furthermore, the front of the frame has a screw thread that lets you attach a lens cap or other accessories securely.

Protection and practical benefits

Use this UV filter to protect the front element of your lens from dust and physical damage while maintaining optical performance. Because of its ultra-thin 3 mm profile, the filter minimizes vignetting on wide-angle lenses. At the same time, the coatings and glass quality keep transmittance high and reflections low for reliable results in the field.

Key features

• Ultra thin, only 3 mm: minimizes vignetting effect on wide-angle lenses.
• Multi coating on both sides of the filter: reduces reflections and preserves image quality.
• High quality optical glass for high transmittance (>98.3%) and a highly smooth surface with low reflection (0.5%).
• Protects the lens front element from dust and damage.
• Hard waterproof and oil repellent coating on the outer side: resists water and oils, making the filter easier to clean.
• Easy to clean: surface treatments simplify maintenance.

Additional product details

This filter specifically cuts UV light below 395 nm. All materials used meet the European Union’s ROHS requirements, so they do not contain restricted hazardous substances. The combination of ultra-thin frame and optical design helps prevent both vignetting and reflections when used on compatible wide-angle lenses.

FAQ

Question: Will this filter cause vignetting on wide-angle lenses?
Answer: Because the frame is ultra-thin (3 mm), the filter is designed to minimize vignetting on super wide-angle lenses and reduce unwanted reflections that can appear with thicker filters.

Question: How does the filter affect image quality?
Answer: The combination of high quality Japanese optical glass and double-sided multi-coating delivers high transmittance (>98.3%) and low reflection (0.5%), helping preserve image clarity while blocking UV light under 395 nm.

Question: Is the filter easy to maintain in the field?
Answer: Yes. The outer side has a hard waterproof and oil-repellent coating, which makes the surface easier to clean and helps repel water and oils during use.

Question: Can I attach accessories to the filter?
Answer: The front of the frame includes a screw thread, so you can attach a lens cap or other compatible accessories directly to the filter.