The Schneider Optics 68-062144 4x4 Platinum IRND 2.1 Filter limits the light striking the camera’s CCD or CMOS imager to the visible spectrum. This near-infrared cut filter lets users of high definition cameras get the most out of their camera gear. This means the benefit of an extended color gamut without the worry of unwanted false colors. Eliminating the near-infrared light leakage lets the camera maintain true color rendition in the blacks while maintaining high MTF of its lenses and camera system.
This IRND filter is free of off-axis color shift regardless of the focal length and can be stacked without introducing reflections common in dichroic filters. It can also be used as a standard ND filter with all HD video and film cameras. Higher densities can be achieved by stacking two or more filters.