K&F Concept 77MM Nano-X Soft Gradient GND16 Filter

The K&F Concept 77mm Nano-X Soft Gradient GND16 Filter is designed to balance exposure between bright skies and darker foregrounds in high-contrast outdoor scenes. Built with premium Japanese optical glass, Nano-X multi-coatings, and an ultra-thin aviation-aluminum frame, it delivers ultra-clear, vignette-free performance for landscape photography.

This soft gradient filter provides a smooth transition from transparent to gray, darkening only the bright portion of the frame, typically the sky. This helps balance the light ratio, reduce overexposed highlights, and retain details in both the foreground and sky, making it ideal for sunrise, sunset, seascapes, mountains, and other high-contrast environments.

Constructed from top-tier Japanese optical glass with precision grinding and double-sided polishing, it ensures extremely sharp, high-resolution imaging even with telephoto lenses. A Nano-X multi-layer coating protects against mold, water, scratches, and oil, while maintaining maximum clarity. Contaminants can be wiped off easily without leaving smudges.

The aviation-grade aluminum frame is only 5.3mm thick and features a CNC-machined trapezoidal grip pattern for easy rotation and secure handling. Its ultra-thin design prevents vignetting at both wide-angle and telephoto focal lengths.

With uniform gradient coating, precise optical density, and stable color reproduction, this GND16 filter delivers consistent, professional-grade results.

Key Features

• Soft Gradient GND16 Filter balances exposure between bright skies and darker foregrounds
• 4-Stop (1.2) Light Reduction with 6.25 transmittance and 1.5 reflectivity
• Premium Japanese Optical Glass for superior clarity and sharpness
• Precision Grinding & Double-Sided Polishing ensures HD imaging with zero loss of detail
• Nano-X Multi-Layer Coating moldproof, waterproof, anti-scratch, anti-grease
• Ultra-Slim 5.3mm Aviation-Grade Aluminum Frame eliminates vignetting at any focal length
• CNC Trapezoidal Grip for easy rotation and attachment/removal
• Uniform & Stable Gradient Coating for accurate dimming and precise color performance

• 1 K&F Concept 77mm Nano-X Soft Gradient GND16 Filter
• 1 Protective storage case (if included)

• Filter Size 77mm
• Filter Type Soft Gradient GND16
• Optical Density 1.2 (4 stops)
• Transmittance 6.25
• Reflectivity 1.5
• Material High-grade Japanese optical glass
• Coating Nano-X waterproof, anti-scratch, anti-oil, moldproof
• Frame Material Aviation-grade aluminum
• Frame Thickness 5.3mm
• Use Case Landscape photography, high-contrast lighting conditions