The Urth 72mm ND2 400 (1 8.6 Stop) Variable ND Lens Filter is a high-quality screw filter specifically designed for photographers and videographers who seek precise control over the exposure of their shots. With a diameter of 72 millimeters, this filter is suitable for a variety of lenses and allows for the reduction of the amount of light hitting the sensor. The ND filter (Neutral Density) offers a variable density ranging from ND2 to ND400, which corresponds to a reduction in light by up to 8.6 stops. This is particularly useful in bright environments to avoid overexposure and to achieve creative effects such as motion blur. The filter is easy to handle and can be effortlessly screwed onto the lens. It is an essential tool for anyone looking to enhance their photographic and cinematic skills by improving control over light and exposure.