Features: Neutral Density (ND) filters reduce the intensity of light without significantly altering its color. ND filters provide various levels of light reduction and transmittance, making them suitable for different shooting conditions such as portraiture and waterfalls. Enable the use of slow shutter speeds in bright sunlight. Rotating the filter ring adjusts the density, offering 2 to 8 stops of light reduction. Slim profile design helps prevent vignetting, especially when using wide-angle lenses. Notice: Actual color may vary slightly due to differences in monitor displays and lighting conditions. Please allow 1-3 cm variation due to manual measurement. Specification: Material: Aviation aluminum Size: 11x11x2.5 cm Diameter options: 37mm / 43mm / 46mm / 49mm / 52mm / 55mm / 58mm / 62mm / 67mm / 72mm / 77mm / 82mm Thickness: 6.9-7.5mm Package List: 1 x ND Filter