Elevate Your Photography with Our Variable ND2 to ND400 Camera Lens Filter Optical Glass and Aluminum Alloy: Experience superior durability and performance with our camera ND filter, crafted from shockproof tempered optical glass and encased in a robust aluminum alloy frame. This combination ensures longevity and reliability, providing you with a filter that is nearly unbreakable and dependable for all your photography adventures. Adjustable ND Value Design: Our innovative filter design allows you to easily adjust the ND values by simply rotating the frame. As you turn, the filter transitions smoothly from light to dark, giving you the flexibility to customize your exposure settings and achieve the perfect effect for any lighting condition. CPL Stacking Principle: Utilizing a sophisticated two CPL stacking principle, this variable neutral density filter offers a recommended operational range from ND2 to ND400. It provides optimal performance within this range, although higher densities like ND1000 or ND2000 are beyond its capabilities, ensuring precise control over exposure levels. Optimized Gradual Dimming: To maximize the filter's functionality, familiarize yourself with the scale and attach the filter to your lens. Observe the gradual color changes as you rotate from minimum to maximum settings. For long exposure shots, mark the scale position, especially since higher densities may require exposures longer than 4 seconds to achieve balanced dimming. Exposure Management: Any occurrence of uneven dimming is not a flaw but a moire fringe effect, which can be effectively managed with longer exposures. The maximum position indicates an approach to ND1000, highlighting the filter's performance limits and guiding you in achieving optimal results. This versatile ND filter is an essential tool for photographers seeking enhanced control over light exposure. Perfect for capturing stunning landscapes, dynamic scenes, and creative long exposures, our adjustable ND filter offers the flexibility and quality you need to take your photography to the next level.