The 55mm Gradual Neutral Density Filter from JJC is a high-quality screw filter specifically designed for use with lenses. This type of filter, also known as a Neutral Color Filter, allows for a smooth reduction of the amount of light hitting the sensor without affecting color balance. The graduated effect of the filter is ideal for landscape photography, as it helps to balance the contrast between the sky and the ground. Photographers can capture details in both bright and dark areas, resulting in more balanced and appealing images. The filter is easy to mount and remove, making it a practical accessory for any photography kit. With its sturdy construction, the JJC filter offers a long lifespan while also protecting the lens from scratches and dust. It is a valuable addition for anyone looking to expand their photographic capabilities.