The 39mm Soft Graduated ND8 Lens Filter by Urth is a high-quality screw filter designed specifically for photographers who seek precise control over their exposure. This ND8 neutral density filter allows for a reduction in the amount of light hitting the sensor without affecting color balance. The soft graduation of the filter ensures a smooth and harmonious transition between the filtered and unfiltered areas, which is particularly beneficial for landscape photography. The filter is ideal for capturing high-contrast scenes, such as sunsets or near bodies of water, where even exposure of the sky and ground is necessary. With its robust construction and ease of use, the Urth ND8 Lens Filter is a valuable addition to the gear of any photographer looking to expand their creative possibilities.