K&F Concept 58MM Multi-Function Adjustable Filter

The K&F Concept 58mm Multi-Function Adjustable Filter is a 2-in-1 solution combining a Black Mist 1/4 diffusion effect with a variable ND8128 neutral density range, perfect for photographers and videographers seeking creative control and precise exposure adjustment. Made with premium optical glass, double-sided 28-layer coatings, and a slim aviation-aluminum frame, it ensures smooth rotation, reduced reflections, and sharp, high-definition results from wide-angle to telephoto lenses.

This dual-purpose filter functions as a Black Mist 1/4 diffusion filter, softening highlights, reducing digital harshness, and adding a cinematic glow, while also serving as a variable ND filter with 37 stops of light reduction (ND8128). The filter is crafted from top-grade optical glass with a double-sided 28-layer anti-reflection coating, reducing flare and maintaining 84 transmittance for crisp, high-definition imaging, even at telephoto focal lengths. Its 7.4mm ultra-thin aviation-aluminum frame prevents vignetting and features a CNC-machined trapezoidal surface for a firm grip and smooth adjustments. The durable coatings are waterproof, anti-scratch, anti-oil, and anti-mildew, ensuring the filter performs reliably under demanding conditions, making it an essential tool for both still photography and cinematography.

Key Features

• 2-in-1 Black Mist 1/4 diffusion + Variable ND8128 filter
• Adjustable 37 stop light reduction
• 28-layer double-sided anti-reflection coating
• 84 transmittance (meets Black Mist 1/4 standard)
• Premium optical glass, finely ground and polished
• Ultra-thin 7.4mm aviation-grade aluminum frame
• CNC trapezoidal grip for smooth rotation
• Waterproof, anti-oil, anti-scratch, and anti-mildew coatings
• No vignetting from wide-angle to telephoto

• K&F Concept 58mm Multi-Function Black Mist 1/4 & ND8128 Filter
• Protective carrying case

• Filter Type Black Mist 1/4 + Variable ND8128
• Light Reduction Range 37 f-stops
• Glass Material Premium optical glass
• Coating 28-layer double-sided anti-reflection
• Transmittance 84
• Frame Material Aviation-grade aluminum
• Frame Thickness 7.4mm
• Diameter 58mm
• Grip Design CNC trapezoidal pattern
• Protective Coatings Waterproof, oil-resistant, scratch-resistant, anti-mildew