NiSi Filter Protector Pro Nano Huc 52mm

NiSi Filter Protector Pro Nano Huc 52mm – Ultra-thin 3.5mm Frame to Minimize Vignetting

The NiSi Filter Protector Pro Nano Huc 52mm protects your lens front element from dust and impact while preserving image quality. It uses high-quality optical glass with a Nano coating applied to both sides to keep light transmission high. The ultra-thin aluminum frame, combined with careful surface finishing, makes this protector suitable even for super wide-angle lenses.

Designed for protection and optical clarity

This protector filter shields the front element of your lens from dust and potential damage. At the same time, it maintains excellent light transmission so your images remain true to the lens’ characteristics. The Nano coating and hardened waterproof finish help keep the glass clean and resistant to contaminants.

Key features

• Ultra thin frame (3.5mm) — The low-profile aluminum frame minimizes vignetting on wide-angle lenses and fits closely to the lens front.
• High quality optical glass — The glass offers high transmittance (>99.3%) and a highly smooth surface to help preserve image clarity with only 0.3% surface reflection.
• Exclusive "U" type Nano coating — The creative U-type Nano coating is applied to enhance surface performance and optical consistency across the filter.
• Nano coating on both sides — Coating on both surfaces helps maintain optical performance and makes cleaning more effective.
• Hardened waterproof coating — The surface treatment adds water resistance and improves durability against environmental exposure.
• Protects the front element — The filter safeguards your lens from dust and possible impact to the front element.
• Easy to clean — The combination of Nano and hardened coatings simplifies maintenance and keeps the glass clear.
• Superfine dull polishing and knurling — The frame receives superfine dull polishing and elaborate knurling to prevent blanching from repeated rotation and to ensure smooth handling.

Who should use this filter?

Use this protector if you want durable front-element protection without noticeably affecting image transmission or increasing vignetting on wide-angle lenses. Its ultra-thin frame and high-transmittance glass make it suitable for photographers and filmmakers who need a protective filter that preserves optical performance.

Technical specifications

FAQ

Question: Will this filter cause vignetting on my wide-angle lens?
Answer: The NiSi Filter Protector Pro Nano Huc has an ultra-thin 3.5mm frame specifically to minimize vignetting on wide-angle lenses. This design helps the filter fit closely and reduce the risk of darkening at the corners.

Question: How does the Nano coating affect cleaning and durability?
Answer: The exclusive U-type Nano coating on both sides, combined with a hardened waterproof coating, makes the glass easier to clean and more resistant to water and contaminants. This helps maintain clarity and reduces the need for aggressive cleaning.

Question: Does the protector affect image quality or light transmission?
Answer: The protector uses high-quality optical glass with transmittance above 99.3% and a highly smooth surface with only 0.3% reflection, so it preserves the lens’s optical performance while providing protection.

Question: How is the frame finished to prevent wear from handling?
Answer: NiSi applies superfine dull polishing and elaborate knurling to the frame. These finishes prevent blanching from repeated rotation and ensure reliable handling when mounting or removing the filter.