Rodenstock ND x8 (82 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.
Professional Rodenstock filters are made exclusively from virgin glass supplied by Schott (Zeiss), a world leader in optical glass manufacturing. 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.