This ND8-GR filter from Polar Pro is a key part of the expanded BaseCamp range. It is ideal for balancing the exposure of the sky and the ground during mid-day shooting. As with all Polar Pro products, you are guaranteed high-quality optics, materials, and overall construction. This specific filter has a stop reduction of 3 to 0 (clear), an optical density reading of 0.9 to 0 (clear), and a varied light transmission percentage of 12.5% to 99% (clear). Standing as a high-performance stage 3-type filter, it is ideal for freelance creatives, videographers, and up-and-coming production companies. Adding serious production-value to your documentary, short film, music video, and more.