K&F Concept 55MM Multi-Function Adjustable Filter

The K&F Concept 55mm Multi-Function Adjustable Filter combines a cinematic Black Mist 1/4 diffusion effect with a versatile ND8128 variable neutral density range, giving creators a powerful 2-in-1 tool for both artistic and exposure control. Built with premium optical glass, advanced 28-layer coatings, and a slim aviation-aluminum frame, it delivers smooth operation, reduced reflections, and crisp, high-definition results from wide-angle to telephoto lenses.

The K&F Concept 55mm Multi-Function Black Mist 1/4 & ND8128 Filter is a compact, all-in-one solution designed for photographers and videographers who demand flexibility and superior image quality. This dual-purpose filter provides the dreamy, cinematic glow of a Black Mist 1/4 diffusion filter, softening highlights and reducing digital harshness, while also functioning as an adjustable ND filter with a 37 stop range (ND8128). Crafted from high-grade optical glass and enhanced with a double-sided 28-layer anti-reflection coating, it maintains an impressive 84 transmittance while minimizing glare and preserving sharpness, even at telephoto focal lengths. The ultra-thin 7.4mm aviation-aluminum frame prevents vignetting and includes a CNC-machined trapezoidal texture for enhanced grip and seamless rotation. With coatings that resist scratches, oil, water, and mildew, this filter stands up to challenging shooting environments and offers creators a reliable, high-performance accessory that elevates both still images and video footage.

Key Features

• 2-in-1 Black Mist 1/4 diffusion + Variable ND8128 filter
• 37 stop adjustable light reduction
• 28-layer double-sided anti-reflection coating
• 84 transmittance meeting Black Mist 1/4 standards
• Top-grade optical glass with double-sided polishing
• Ultra-thin 7.4mm aviation-aluminum frame
• CNC trapezoidal grip design for smooth rotation
• Waterproof, oil-resistant, anti-scratch, and anti-mildew coatings
• No vignetting across focal lengths

• K&F Concept 55mm Multi-Function Black Mist 1/4 & ND8128 Filter
• Protective carrying case

• Filter Type Black Mist 1/4 + Variable ND8128
• Light Reduction 37 f-stops
• Material High-definition optical glass
• Coating 28-layer double-sided anti-reflection
• Transmittance 84
• Frame Material Aviation-grade aluminum
• Frame Thickness 7.4mm
• Diameter 55mm
• Grip CNC trapezoidal texture
• Protective Coatings Waterproof, anti-oil, anti-scratch, anti-mildew