The NiSi Explorer Collection 150x150mm Nano IR Neutral Density filter – ND64 (1.8) – 6 Stop is designed for adventure. These filters feature a special glass hardening process that makes them twice as strong as typical glass filters. The Explorer series is much less prone to accidental breakage, making them perfect for active photographers. Neutral density (ND) filters uniformly reduce the amount of light entering the lens. ND filters enable greater motion blurring and image detail by allowing a large aperture and a slow shutter speed. They are also helpful when the contrast between highlights and shadows is too high for a quality exposure. The ND64 6-stop ND filter is generally used during the golden hour to create exposures of 1-2 minutes for smooth water or clouds. A 6-stop filter is also great for capturing dynamic water while retaining some texture before the golden hour.

NiSi ND filters do not affect the coloration of the image, offering true-to-life color. They are made from high-quality optical glass (not resin) with a nano coating to prevent loss of detail. By using a neutral density filter, the camera can be vulnerable to infrared light, which may cast unwanted red colors in photos when shooting at a small aperture. NiSi ND filters have an infrared protection coating layer to eliminate infrared light through the lens, restoring natural true-to-life color. The NiSi Explorer Collection is made from B270 tempered glass and features the same nano coating process as the optical glass filters. This filter is tempered and hardened, making it much less prone to accidental damage, but this does not mean it is unbreakable. Over time, the hardening may decline.