NiSi Square Nano IRGND Reverse 100x150mm GND16 1.2 kaina

Reverse GND Filter, which is nothing more than hard-edge GNDs with the dark area that fades away the more you move from the line of separation to the upper border of the filter. Basically, they were invented to better manage sunrises and sunsets, where the light is more intense on the horizon line (middle).