Cokin 52mm Neutral Density ND 8X Filter

These filters have an overall neutral density (no color) and are used to control the amount of light passing through the lens. They can be used to help adjust the film speed past the setting of the camera To help lower the shutter speed setting To allow the use of a smaller f/stop for greater depth-of-field These filters are available in differant densities, with the higher the number, the greater the density.