The Singh-Ray 150 x 177.8mm Daryl Benson 0.9 Reverse Graduated Neutral Density Filter is unique compared to other graduated neutral density filters in that the density begins in the middle of the filter and tapers off toward the edge of the filter. The density is placed in the middle of the filter in order to help compensate for bright horizons or other circumstances when the brightest part of the image is located in the middle of the frame. Normal graduated ND filters are unable to achieve similar results due to the physical edge of the filter lying within the picture plane while photographing in a similar manner. Neutral density filters do not affect the coloration of the image and the 0.9 density provides a 3 stop reduction in light from entering the lens.

Singh-Ray rectangular filters are constructed from CR-39 optical resin for high image clarity and overall durability. This filter measures 5.9 x 7" / 150 x 177.8mm.