The Urth 49mm ND64 1000 (6 10 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 ND1000, this neutral density filter allows for a reduction of light by up to 10 stops, making it ideal for creating creative effects in bright lighting conditions. The filter has a diameter of 49 millimetres, making it compatible with a wide range of lenses. The variable ND function enables users to flexibly adjust the amount of light hitting the sensor, providing greater creative freedom in choosing shutter speed and aperture. The Urth ND64 1000 filter is particularly useful for long exposures to create motion blur or to control depth of field in bright environments. Its robust construction and high-quality optics ensure that image quality is not compromised while the filter is mounted on the lens.