The Cokin T2 Soft-Edge Graduated Tobacco is a 2-stop filter that can be used to enhance dull, flat, or hazy skies. The filter is densest at the edge and graduates to clear at the middle, with a soft-edged line of transition. Soft-edge filters are great for images with a undefined horizon line like mountains and cityscapes. The filter is rectangle so you can selectively choose where the tobacco edge sits in the framing of the image.