K&F 55MM,Nano-X, optical glass, soft gradient GND16, ultra-clear K&F Concept

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The K&F Concept 55mm Nano-X Soft Gradient GND16 Filter is a high-performance circular ND filter that balances high-contrast outdoor scenes. Made with Japanese optical glass and a thin aviation-grade aluminum frame, it delivers ultra-clear, vignette-free images for professional landscape photography.

The K&F Concept 55mm Nano-X Soft Gradient GND16 Filter is designed for photographers tackling outdoor scenes with significant contrast between bright skies and darker foregrounds. Its soft gradient design—half-transparent, half-gradient gray—provides partial area dimming, balancing exposure and preventing overexposed highlights or underexposed shadows. Crafted from top-quality Japanese optical glass with precision grinding and double-sided polishing, this filter maintains sharpness even on telephoto lenses while delivering high-definition imaging. The CNC trapezoidal patterned frame ensures secure grip for easy rotation and convenient installation or removal. Advanced Nano-X coatings make the filter waterproof, moldproof, scratch-resistant, and anti-grease, without affecting image quality. The ultra-thin 5.3mm aviation-grade aluminum frame prevents vignetting on wide-angle and telephoto lenses, and high-tech gradual coating guarantees uniform color and precise dimming. Ideal for landscape photography, this filter enables professional results in high-contrast lighting conditions.

Key Features:

• Soft gradient GND16 filter balances sky and ground exposure
• 4-stop (1.2) dimming, 6.25% transmittance, 1.5% reflectivity
• Premium Japanese optical glass with double-sided polishing for sharp, high-definition imaging
• CNC trapezoidal aluminum frame for secure grip and smooth rotation
• Nano-X coatings: waterproof, anti-scratch, anti-grease, moldproof
• Ultra-thin 5.3mm aviation-grade frame prevents vignetting
• High-tech gradual coating ensures uniform color and accurate dimming
• Ideal for landscape and outdoor photography

• 1 × K&F Concept 55mm Nano-X Soft Gradient GND16 Filter
• 1 × Protective filter pouch (if included)

• Filter Type: Soft Gradient GND16
• Filter Size: 55mm
• Material: Japanese optical glass
• Frame: 5.3mm aviation-grade aluminum
• Coating: Nano-X multi-coating (waterproof, anti-scratch, anti-grease, moldproof)
• Dimming Levels: 4 stops (1.2)
• Transmittance: 6.25%
• Reflectivity: 1.5%