The Urth 55mm ND8 128 (3 7 Stop) Variable ND Lens Filter is a high-quality screw filter specifically designed for photographers and videographers who desire precise control over the exposure of their shots. With a filter strength of ND128, this neutral density filter allows for a reduction in light transmission of up to 7 stops, making it particularly useful for achieving creative effects in bright lighting conditions or controlling depth of field. The filter has a diameter of 55 millimeters, making it compatible with a variety of lenses. The variable ND function allows users to adjust the density of the filter as needed, providing flexible handling in different lighting situations. The Urth ND8 128 filter is ideal for landscape, portrait, and long exposure photography, helping to avoid unwanted overexposure while maintaining image quality. With this filter, photographers can effectively realize their creative visions.