K&F Concept Nano-X Black Diffusion 1/4 Filter 49mm

The K&F Concept Nano-X Black Diffusion 1/4 Filter is a premium optical accessory designed for photographers and videographers seeking to achieve a cinematic, dreamy look. Crafted with Japanese AGC optical glass and aviation aluminum alloy, this filter softens skin imperfections while maintaining sharpness and contrast. The 1/4 diffusion strength provides a subtle haze effect, ideal for portraiture and creative storytelling.

Advantages

This filter reduces wrinkles, blemishes, and pores without compromising image quality. Its ultra-slim frame prevents vignetting on wide-angle lenses, and the double-sided threading allows stacking with other filters or lens caps. The 28-layer nano-coating ensures waterproof, oil-proof, scratch-resistant, and anti-reflection properties, making it durable for outdoor use.

Suitable for

• Portrait photography
• Videography and cinematic effects
• Landscape and creative shooting
• Lenses with 49mm filter thread

Key specifications

• Filter Type: Black Diffusion
• Diffusion Strength: 1/4
• Filter Diameter: 49mm
• Optical Material: Japanese AGC Optical Glass
• Frame Material: Aviation Aluminum Alloy
• Coating: 28-layer multi-layer nano-coating
• Light Transmission: Approx. 87%
• Color Shift: Neutral
• Thread Type: Double-sided

Recommendations

For best results, pair this filter with a lens hood to minimize flare. Clean with a microfiber cloth to maintain coating integrity.