K&F CONCEPT 52MM ND2-ND400 Variable Filter (1-9 Stop), 24 Layers of Nano-coating

The K&F Concept 52mm ND2–ND400 Variable ND Filter provides adjustable 1–9 stop light reduction for long exposure and cinematic motion effects in changing lighting environments. Built with HD AGC optical glass and 24 layers of nano-coating, it delivers excellent clarity, reduced reflections, and durable protection in an ultra-slim 7.4mm frame designed to minimize vignetting on wide-angle lenses.

Unlock creative exposure control with the K&F Concept 52mm ND2–ND400 Variable Neutral Density Filter, engineered for photographers and videographers needing adaptable light reduction in dynamic outdoor conditions. Offering a smooth adjustment range from 1 to 9 stops, this variable ND filter is ideal for capturing long-exposure landscapes, balanced daylight video, silky water movement, clouds in motion, and shallow-depth-of-field portraits in bright sunlight.

Constructed from premium HD AGC optical glass, the filter features 24 layers of nano-coating to repel water and oil, minimize dust adhesion, reduce glare, and ensure maximum image clarity. To support ultra-wide-angle lenses, the frame is built with an ultra-slim 7.4mm aluminum alloy structure, significantly reducing the risk of vignetting. The CNC-machined trapezoidal grip ring improves rotation accuracy and user control, making adjustments quick and precise.

A mild “X” pattern may appear at extreme ND values depending on lens focal length, a natural characteristic of variable ND filters, but it easily resolves with continued rotation. Compatible with all 52mm filter-thread lenses, this professional-grade filter ensures true color fidelity, consistent exposure, and reliable performance for landscapes, travel, and video productions.

Key Features:

• Adjustable ND2–ND400 (1–9 stops) for flexible exposure control
• HD AGC optical glass with 24-layer nano-coating
• Coatings offer water, oil, and dust resistance, plus anti-reflective performance
• Ultra-slim 7.4mm aluminum alloy frame minimizes vignetting
• CNC trapezoidal rotating ring for precise, smooth adjustment
• Ideal for long exposure photography, cinematic video, and motion blur effects
• Maintains accurate color with no unwanted color shift