NiSi Filter Protector Pro Nano Huc 49mm

NiSi Filter Protector Pro Nano Huc 49mm – Ultra-thin 3.5mm Frame for Minimal Vignetting

The NiSi Filter Protector Pro Nano Huc 49mm protects the front element of your lens from dust and impact while keeping image quality high. It uses high-quality optical glass with nano coatings on both sides to ensure light passes through with minimal loss. The ultra-thin aluminum frame fits even on very wide-angle lenses to reduce the risk of vignetting.

Key benefits and uses

Use this protector to shield your front element during regular shooting, travel, and on-location work. It keeps out dust, guards against accidental knocks, and stays easy to clean. Moreover, its thin frame and optical properties preserve image integrity so you can continue composing wide-angle shots without added dark corners.

Design and build

The filter features a high-quality aluminum frame with a thickness of only 3.5mm. Because of this ultra-thin profile, the protector fits close to the lens and is suitable for super wide-angle lenses where vignetting is a concern. Furthermore, superfine dull polishing and elaborate knurling on the frame prevent blanching from repeated rotation, keeping the finish consistent over time.

Optical performance and coatings

NiSi uses high-quality optical glass to achieve very high transmittance and a smooth surface finish. The filter allows 99.3% of light to pass through, while surface reflections are kept to only 0.3%. In addition, the glass receives NiSi’s exclusive "U" type Nano coating on both sides as well as a hardened waterproof coating, making the surface easier to clean and more resistant to moisture.

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

Technical specifications

Frequently Asked Questions

Question: Will this protector cause vignetting on wide-angle lenses?
Answer: The protector uses an ultra-thin 3,5mm aluminum frame specifically to minimize vignetting on wide-angle and super wide-angle lenses, so it is suitable for those use cases.

Question: How much light does the filter let through?
Answer: The optical glass and coatings allow 99,3% of light to pass through, while reflections are limited to 0,3%, helping to maintain image brightness and contrast.

Question: Is the surface easy to maintain during shoots?
Answer: Yes. The filter features a hardened waterproof coating and nano coatings on both sides, which make it easier to clean and more resistant to moisture and smudges.

Question: Will the frame show wear from repeated use?
Answer: Superfine dull polishing and elaborate knurling on the frame are designed to prevent blanching from repeated rotation, helping the frame maintain its appearance over time.