Haida Red Diamond Hard-Edge Reverse-Graduated ND Filter (100 x 150mm, 4- to 1.5-Stop)

This 4- to 1.5-stop, 100 x 150mm Red Diamond Hard-Edge Reverse-Graduated ND Filter from Haida is compatible with the Haida 100 or 100-Pro Filter Holder. It can be applied to darken bright skies, specifically during a sunrise or sunset, while allowing for a normal, unaffected exposure in the other regions of the image.