The K&F Concept 77mm Black Mist 1/4 + ND2-400 Variable ND Filter blends versatile light control with a soft, cinematic effect. This filter features double-sided 28-layer anti-reflection green film, enhancing image clarity while minimizing glare. Part of the Nano-X Series, it includes a lever for precise adjustments, making it ideal for photographers and videographers focused on achieving creative, detailed shots.