Darken images with ease by using the LEE Filters 150 x 170 mm 0.9 Soft-Edge Graduated Neutral Density Filter. It reduces excess exposure in selective areas such as bright skies by providing a 3-stop reduction in light so that you can provide the images with a dark effect. This filter is designed specifically for use with the LEE SW-150 holder. Made from high-quality optical resin, this filter is durable and hence, offers a stunning imaging performance. Lastly, this filter does not affect the images’ overall coloration in any way.