The NiSi Cinema Rotating 77mm Allure Streak Orange (2mm) is a special effects filter designed to render a single light ray from a point light source. This filter features a single series of etched lines spaced 2mm apart from each other, which run across the filter surface. The filter creates the effect of elongated orange streaks horizontally from the light source usually seen when using an Anamorphic type of lens. The 77mm filter has a rotating front (similar to how a CPL rotates) and when the filter is rotated, the orientation of the light ray can be adjusted to suit your composition or desired effect. The filter is constructed from clear optical-grade glass H-K9L for maintained image clarity and an aluminum frame.