After investing in the 40.5mm Circular Variable ND64-1000 6 to 10-Stop Lens Filter Plus+, you'll gain unparalleled control over your photography in varying light conditions. This professional-grade filter offers a light reduction range of 6 to 10 f-stops, empowering you to manipulate depth of field and long exposure effects without the risk of overexposing your images, even in bright, fluctuating light.Constructed with world-leading German Schott B270 optical glass, this filter ensures superior light transmittance for true-to-life images. The 20-layer nano-coating not only enhances light transmission consistency but also provides robust protection against water, oil, and scratches. This advanced coating also simplifies the cleaning process, keeping your filter in pristine condition for longer.Designed with the needs of wide-angle lens users in mind, this filter features an ultra-slim rim to prevent vignetting, ensuring your images are clear from edge to edge.