NiSi Filter Protector Pro Nano Huc 72mm

NiSi Filter Protector Pro Nano HUC 72mm – Ultra-thin 3.5mm Frame for Minimal Vignetting

The NiSi Filter Protector Pro Nano HUC 72mm shields your lens front element from dust and impact while preserving image quality. It uses high-quality optical glass with advanced nano coatings on both sides to maintain excellent light transmission. The filter’s ultra-thin aluminum frame reduces the risk of vignetting on wide-angle lenses and offers a durable, easy-to-use finish.

Key features

• Ultra thin frame (3.5mm) to minimize vignetting on wide-angle lenses.
• High quality optical glass for high transmittance (>99.3%) and a highly smooth surface with only 0.3% reflection.
• Exclusive creative "U" type Nano coating applied to the glass.
• Hardened waterproof coating for added surface protection.
• Protects the lens from dust and damage to the front element.
• Easy to clean thanks to the nano and waterproof coatings.

Design and handling

The filter frame is machined from high-quality aluminum and kept very thin at 3.5mm. This ultra-thin profile helps the filter sit close to the lens and reduces the chance of vignetting, making it suitable for use with many wide-angle lenses.

NiSi applies superfine dull polishing and elaborate knurling to the frame. These finish steps prevent blanching or visible wear from repeated rotation, so the filter remains comfortable to mount and remove over time.

Both sides of the optical glass receive nano coatings, which increase light transmission and lower surface reflections. In addition, a hardened waterproof coating helps repel moisture and makes the glass easier to clean after use in challenging environments.

Specifications

Frequently asked questions

• Question: Will this filter cause vignetting on wide-angle lenses?
  Answer: The ultra-thin 3.5mm frame is designed to minimize vignetting and to fit closely on many wide-angle lenses, reducing the chance of darkened corners.
• Question: How much light passes through the filter?
  Answer: The high-quality optical glass with nano coatings provides very high transmittance, rated at >99.3% to preserve image brightness and color fidelity.
• Question: How does the coating help in the field?
  Answer: The exclusive "U" type Nano coating on both sides, together with a hardened waterproof coating, lowers reflections, repels water, and makes the surface easier to clean after exposure to dust or moisture.
• Question: Will the frame show wear after repeated use?
  Answer: Superfine dull polishing and elaborate knurling prevent blanching from repeated rotation, so the frame maintains its finish and handling over time.
• Question: What protection does the filter provide?
  Answer: The NiSi Pro Nano HUC protects the lens front element from dust and physical damage while remaining simple to clean and maintain thanks to its coatings.