High-quality neutral-density filters designed for professional photography and videography Precision neutrality with virtually no color shift and extremely accurate stop values Innovative design to block both infrared and ultraviolet pollution, ensuring pure blacks and vibrant colors Six, ten, and fifteen-stop filters featuring a foam seal for a snug fit and light leak prevention Versatile use with other filters like neutral density grads and polarizing filter for enhanced in-camera image control Developed in response to the rigorous demands of the film industry, now available to the wider photographic industry