Features:<br> Neutral Density (ND) filters can reduce the intensity of light without appreciably changing its color.<br> ND filters have different stop reduction numbers and transmittance thus generated can be applied for different shooting conditions, such as portraiture, water falls, etc.<br> Apply slow shutter speed under strong sunlight exposure.<br> Simply rotate the ring of this filter, it offers 2 to 8 stops added density.<br> Slim profile design. Thin filters are essential for avoiding vignetting when shooting at wider angles.<br> Notice:<br> Actual color may be slightly different from the image due to different monitor and light effect<br> Please allow 1-3cm deviation due to manual measurement<br> Specification:<br> Material: aviation aluminum<br> Size: 11x11x2.5cm<br> Diameter:37mm / 43mm / 46mm / 49mm / 52mm / 55mm / 58mm / 62mm / 67mm / 72mm / 77mm / 82mm<br> Thickness:6.9-7.5mm<br> Package List:<br> 1x ND Filter