Rodenstock ND x8 (72 mm) neutral density filter reduces the amount of light entering the lens, allowing shooting in bright light with a wide-open aperture and longer shutter speeds to create motion effects. The numbers indicate the number of stops of light reduction.
Rodenstock filters are considered top-class and among the best in their category. Professional Rodenstock filters are made exclusively from virgin glass supplied by Schott (Zeiss), a world leader in optical glass manufacturing. This ensures the products meet high standards that underpin the reputation of German optics manufacturing. Filters are laser-cut from a glass cylinder blank to the required thickness, then the surfaces are lapped and polished to achieve maximum parallelism and clean edges. After that, a durable multi-layer anti-reflective coating is applied to both sides.
To prevent thread deformation and ensure optimal centering, all Rodenstock filters are mounted in brass rings anodized to deep black. High-quality materials and modern manufacturing technologies result in exceptionally high transparency, clarity, neutrality, uniformity, and tightly controlled refractive properties and dispersion.