Enhance Your Photography with Our Variable ND2 to ND400 Camera Lens Filter Optical Glass and Aluminum Alloy: Constructed with shockproof tempered optical glass and a robust aluminum alloy frame, our camera ND filter is designed for durability and longevity. This combination ensures that the filter is nearly unbreakable, providing consistent performance even in demanding shooting environments. Adjustable ND Value Design: Featuring an innovative combination frame, this filter allows you to adjust ND values easily by rotating the frame. As the filter transitions from light to dark, you can customize the exposure to achieve the perfect effect for various lighting conditions, enhancing your creative control. CPL Stacking Principle: Utilizing a two CPL stacking principle, this variable neutral density filter offers a range of ND2 to ND400. This range covers most photography needs, although it is important to note that it does not extend to high-density levels like ND1000 or ND2000, ensuring optimal performance within its specified range. Optimized Gradual Dimming: To achieve the best results, familiarize yourself with the scale on the filter. Attach it to your lens, rotate from minimum to maximum, and observe the color changes. For long exposure shots, marking the scale position is recommended, as higher densities may require exposures longer than 4 seconds to balance any uneven dimming. Exposure Management: Any uneven dimming experienced is not a defect but a moire fringe effect, which can be managed with long exposures. The maximum position corresponds to approaching ND1000, indicating the filter's performance limits and guiding you for optimal use. This versatile ND filter is an essential tool for photographers seeking to manage light exposure creatively and effectively. Whether you're shooting landscapes, portraits, or dynamic scenes, our adjustable ND filter provides the flexibility and reliability you need to elevate your photography.