The Urth 49mm ND16 (4 Stop) 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 diameter of 49 millimeters, this neutral density filter is ideal for a variety of lenses. The ND16 filter reduces the amount of light hitting the sensor by four stops, allowing for longer exposure times or a wider aperture in bright lighting conditions without overexposing the images. This is particularly useful for creating smooth motion blur in water or clouds, as well as achieving a beautiful bokeh effect. The filter is made from high-quality materials to ensure optimal image quality and minimize unwanted reflections. It is easy to attach and remove, making it a practical accessory for any photography or videography setup.