The NiSi Nano IR Neutral Density Filter ND1000 (3.0) 10 Stop is specially designed for landscape photographers. This filter is made from high quality optical glass with nano coating to prevent losing any single bit of detail. Neutral density filters do not affect the coloration of the image and the 3.0 density provides a 10 stop reduction in light from entering the lens. Attaching a neutral density (ND) filter to your lens uniformly reduces the amount of light entering the lens. The ND filter is helpful when the contrast between the highlights and shadows is too great to get a quality exposure. The ND Filter also can enable greater motion blurring and image detail by allowing a large aperture and/or a slow shutter speed to be used.