The Urth 39mm ND2 32 (1 5 Stop) Variable ND Lens Filter is a high-quality screw filter designed specifically for photographers and videographers who seek precise control over the exposure of their shots. With a filter diameter of 39 millimeters, this neutral density filter allows for a reduction in light transmission of up to 5 stops, making it particularly useful for achieving creative effects in bright lighting conditions or controlling depth of field. The ND filter is ideal for long exposures, as it can enhance motion blur in water or clouds while preventing overexposure. Its robust construction and precise craftsmanship ensure a long lifespan and easy handling. The filter features a standardized thread that allows for hassle-free attachment to compatible lenses. This versatile filter is an essential tool for anyone looking to expand their photographic and cinematic skills.