The NiSi Explorer Collection 150x150mm Nano IR Neutral Density filter – ND8 (0.9) – 3 Stop is designed for adventure. These filters feature a special glass hardening process that makes them twice as strong as typical optical 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 ND8 3 Stop is commonly used for waterfalls and capturing water flow at shutter speeds from 0.5 seconds to 2 seconds.

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. Using a neutral density filter can make the camera 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, though it is not unbreakable. Over time, the hardening may decline. The NiSi 150mm filter system is suitable for cameras with lenses that have a standard filter thread from 49 mm to 95 mm.