The K&F Concept Variable ND Filter ND2-400 is a high-quality lens filter specifically designed for photographers and videographers who seek precise control over the exposure of their shots. With a filter diameter of 67 millimeters, this neutral density filter offers a variable density range from ND2 to ND400, allowing for adjustments to the amount of light that reaches the sensor. This is particularly useful in bright lighting conditions to avoid overexposure and achieve creative effects. The filter features 28 layers of green coatings that not only optimize light transmission but also minimize reflections and enhance image quality. Additionally, the filter is water-resistant and scratch-resistant, making it ideal for use in various conditions. The Nano-X series ensures high durability and longevity, so the filter remains reliable even with frequent use. This ND filter is a valuable addition to any photo or video equipment, enabling precise execution of artistic vision.