While the NiSi 4x5.65" Nano Infrared Neutral Density 2.1 (7-Stop) Glass Filter may appear simple, it is a high-performance tool designed for professional cinematographers. Crafted from premium optical glass, this filter is specifically optimized for high-definition 6K digital cameras, ensuring sharp, clear images every time. The standout feature of this filter is NiSi's exclusive Dual-Sided Nano coating technology. This innovative technology not only controls infrared light pollution but also minimizes color shifting to an ultra-low level, surpassing the performance of many leading competitors. The result is superior color control that enhances the quality of your digital imagery. In addition to its advanced light and color management features, the NiSi 4x5.65" Nano Infrared Neutral Density 2.1 (7-Stop) Glass Filter also boasts an anti-reflective coating. This feature significantly reduces glares and reflections, delivering a 6K digital image without any loss in clarity.