The Schneider 4 x 5.65" MPTV Platinum IRND 2.1 Filter is a combination of both an infrared control filter and a 2.1 (7 Stop) neutral density filter. There is a 2.1 density for darkening of the entire image in order to photograph with a wider aperture or slower shutter speed than normally required.

These filters incorporate IR control filtration that is specifically designed for use with CCD or CMOS sensors. They filter out infrared light pollution causing color shifts that are commonly associated with high definition recording. By using these control filter you can achieve a wider color gamut and stronger color fidelity, especially noticeable in the shadows and darker regions of the image.