The NiSi Filters 100mm ND Base Kit is a new kit from NiSi Filters featuring two 100x100mm IR Neutral Density Filters, ND8 3 Stop, and ND64 6 Stop. Neutral density (ND) filters uniformly reduce the amount of light entering the lens. The ND Filter can enable greater motion blurring and image detail by allowing a large aperture and a slow shutter speed. ND filters are also helpful when the contrast between the highlights and shadows is too high to get a quality exposure. The ND8 3 Stop is commonly used for waterfalls and capturing water flow at shutter speeds from 0.5 seconds to 2 seconds. The ND64 6 stops ND filter is generally used during golden hour to create exposures of 1-2 minutes for smooth water or clouds. A 6 Stop is also great for capturing dynamic water while retaining some texture before the golden hour.