How to achieve superior control over your photography in varying light conditions The answer lies in our high-quality 52mm Circular Variable ND64-1000 6 to 10-Stop Lens Filter Plus+. This professional-grade filter offers a variable density of 6 to 10 f-stops, enabling you to manipulate the amount of light entering your camera lens. This feature allows for wider apertures in bright, variable light conditions, facilitating shallower depth of field effects, and slower shutter speeds for captivating long exposure effects without the risk of overexposing your images.Constructed with the world's finest German Schott B270 optical glass, this filter boasts a 20-layer nano-coating. This multi-coating not only ensures truer light transmittance but also provides superior protection against water, oil, and scratches. The nano-coating also makes cleaning your filter a breeze, maintaining its effectiveness and durability over time.