NiSi Filter Protector Pro Nano Huc 77mm

NiSi Filter Protector Pro Nano HUC 77mm – Ultra-thin 3.5mm Frame to Minimize Vignetting

The NiSi Filter Protector Pro Nano HUC 77mm protects the front element of your lens from dust and impact while maintaining excellent light transmission. It uses high quality optical glass with a U-type Nano coating and a hardened waterproof finish. The filter’s ultra-thin aluminum frame and careful surface treatment make it suitable even for wide-angle lenses where vignetting can be a concern.

Key features

• Ultra thin frame (3,5mm) to minimize vignetting on wide angle lens.
• High quality optical glass for high transmittance (>99,3%) and highly smooth surface with only 0,3% reflection.
• Exclusive creative "U" type Nano coating.
• Hardened waterproof coating.
• Protect the lens from dust, damage to the front element.
• Easy to clean.

Design and materials

The filter uses high quality optical glass to allow more than 99,3% of light to pass through, while keeping surface reflections to about 0,3%. In addition, NiSi applies an exclusive "U" type Nano coating to the glass. The coating improves surface performance and, together with a hardened waterproof coating, helps resist moisture and simplifies cleaning.

Frame and handling

NiSi makes the frame from high quality aluminum and keeps its thickness to only 3,5mm. This ultra-thin profile helps the filter sit close to the lens and reduces the chance of vignetting on super wide angle lenses. Furthermore, superfine dull polishing and elaborate knurling on the frame prevent blanching from repeated rotation and improve handling when mounting or removing the filter.

Protection and maintenance

The Filter Protector Pro Nano HUC is designed to shield the front element from dust and impact. Because of its surface treatments and coatings, the filter is easy to clean and maintain, helping you preserve lens performance without adding unnecessary optical loss.

FAQ

Question: Will this filter cause vignetting on wide-angle lenses?
Answer: The filter has an ultra-thin 3,5mm aluminum frame specifically to minimize vignetting, making it suitable for use on wide-angle lenses where available clearance is limited.

Question: How does the Nano coating affect image quality?
Answer: The exclusive "U" type Nano coating, together with high quality optical glass, allows over 99,3% light transmission and keeps reflections to around 0,3%, so the filter preserves image clarity while protecting the front element.

Question: Is the filter easy to clean and maintain?
Answer: Yes. The hardened waterproof coating and smooth surface make the filter easy to clean and help resist moisture, while the durable finish reduces wear from handling.

Question: How is the frame finished to withstand repeated use?
Answer: The frame receives superfine dull polishing and has elaborate knurling to prevent blanching caused by repeated rotation, which improves durability and grip during mounting and removal.