NiSi Filter Protector Pro Nano Huc 37mm

NiSi Filter Protector Pro Nano HUC 37mm – Ultra-thin 3,5mm Frame to Minimize Vignetting

The NiSi Filter Protector Pro Nano HUC 37mm protects the front element of your lens from dust and impact while maintaining high optical performance. It uses high quality optical glass with nano coating on both sides to allow >99,3% light transmission. At the same time, the filter frame is made of high quality aluminum and measures only 3,5mm in thickness, which helps the filter fit even on super wide-angle lenses and reduces the risk of vignetting.

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 on both sides of the glass.
• Hardened waterproof coating for easier maintenance and added protection.
• Designed to protect the lens from dust and from damage to the front element.
• Easy to clean thanks to the nano and waterproof coatings.
• Superfine dull polishing and elaborate knurling ensure the frame will not blanch because of repeated rotation.

How this filter benefits your shooting

First, it preserves image quality by transmitting over 99,3% of incoming light and keeping surface reflections to around 0,3%. Second, its ultra-thin 3,5mm aluminum frame helps prevent vignetting when used on wide-angle lenses. Third, the nano coatings and hardened waterproof layer make cleaning straightforward and add a level of physical protection for everyday use.

Specifications

FAQ

Question: Will this protector cause vignetting on wide-angle lenses?
Answer: The NiSi Protector Pro Nano HUC has an ultra thin 3,5mm frame specifically to minimize vignetting, making it suitable for use on super wide-angle lenses.

Question: How much light does the filter transmit and how reflective is the surface?
Answer: The filter’s high quality optical glass allows >99,3% of light to pass through, and the surface reflection is about 0,3%, which helps maintain image quality.

Question: Are the coatings on one or both sides of the glass?
Answer: The filter features the exclusive "U" type Nano coating on both sides of the glass, plus a hardened waterproof coating for easier cleaning and added protection.

Question: Will the filter handle regular mounting and removal without cosmetic wear?
Answer: Yes. The superfine dull polishing and elaborate knurling on the frame are designed to prevent blanching from repeated rotation during mounting and removal.