NiSi Filter Protector Pro Nano Huc 43mm

NiSi Filter Protector Pro Nano HUC 43mm – Ultra-thin 3.5mm Frame to Minimize Vignetting

The NiSi Filter Protector Pro Nano HUC 43mm 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 preserve image clarity. The ultra-thin aluminum frame measures only 3.5mm, so the filter fits well on wide-angle lenses and helps avoid vignetting.

Design and protection

This protector filter provides front-element protection from dust and potential damage caused by impact. The frame is made of high quality aluminum and receives superfine dull polishing. In addition, elaborate knurling prevents the frame from blanching after repeated rotation, so the filter stays functional and reliable over time.

Optical performance

The filter uses high quality optical glass and a Nano coating on both sides. As a result, it allows more than 99.3% of light to pass through while maintaining a highly smooth surface with only 0.3% reflection. Thus, you can protect your lens without compromising light transmission or introducing notable reflections.

Coatings and cleaning

This product features an exclusive creative "U" type Nano coating plus a hardened waterproof coating. Together, these coatings make the surface easy to clean and resistant to moisture. You can remove dust and smudges quickly and keep the front element clear for shooting.

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 improved moisture resistance
• Protects the lens from dust and damage to the front element
• Easy to clean thanks to Nano and waterproof coatings
• Durable frame finishing – superfine dull polishing and elaborate knurling prevent blanching after repeated rotation

Technical specifications

FAQ

Question: Will this 43mm protector cause vignetting on wide-angle lenses?

Answer: The NiSi Protector features an ultra-thin 3.5mm frame designed specifically to minimize vignetting on wide-angle lenses. Its slim profile helps the filter sit close to the lens without encroaching on the image circle.

Question: How does the Nano coating affect image quality and cleaning?

Answer: The Nano coating on both sides maintains high light transmission (>99.3%) and limits reflection (0.3%), so it preserves image quality. The hardened waterproof coating and Nano surface also make the filter easy to clean, allowing quick removal of dust and smudges.

Question: Is the frame durable with frequent mounting and unmounting?

Answer: Yes. The frame receives superfine dull polishing and elaborate knurling to prevent blanching from repeated rotation, which helps maintain the finish and handling over time.