K&F Concept 82mm Variable ND2-ND400 ND Filter

The K&F Concept 82mm Variable ND2-ND400 neutral density filter is an optical accessory that gives photographers and videographers precise control over the amount of light entering the lens, enabling creative effects and technical solutions that would otherwise be impossible. By rotating the filter’s front ring, you continuously adjust the density from ND2 (1 stop) to ND400 (approximately 9 stops), covering an enormous range of lighting conditions with a single filter. For videographers, a variable ND filter is an indispensable tool for maintaining the cinematically pleasing 180-degree shutter rule — ensuring that shutter speed is approximately double the frame rate — regardless of the ambient brightness. Without it, shooting outdoors in bright sunlight at a cinema shutter speed would result in severely overexposed footage. For photographers, deep ND settings allow extremely long exposures in daylight that smooth flowing water into silky streams, turn crowded tourist spots into eerily empty scenes, and create motion blur in clouds for dramatic landscape images. K&F’s premium multi-layer nano coating on both surfaces of the optical glass minimizes reflections, suppresses flare, and repels water and oil, maintaining optical clarity in challenging conditions. The 82mm thread fits a wide range of popular wide and standard zoom lenses.