Designed to use with SW150-Series Filter Holder, the 150 x 170mm Soft-Edge Graduated Neutral Density 1.2 Filter from LEE Filters allows you to reduce the exposure of the sky while capturing images of a landscape. This neutral density filter made from optical-quality resin and has a dense edge with clear middle that gives a strong transition to the image that has a sky and a foreground without affecting the coloration of the image. It has up to 16x Filter Factor and provides a 4-stop reduction of light entering the lens.