Cokin CNV32-58 Nuances Variable ND Filter 58mm (5-10 Stops)Control Your Exposure with the Cokin Nuances Variable ND Filter The Cokin NUANCES Variable ND Filter allows to photograph with a wider aperture or slower shutter speed than normally required. The front ring is visually demarcated with dots and includes a rotation lever to further enable fast and precise positioning of the front ring. This filter is constructed from Schott B270 glass for increased optical clarity as well as color fidelity, and each