I have a Singh ray 2 stop Graduated ND with soft step. I find it very difficult when I uses it with my Canon 17-40 f4L lens on my Canon T2i, which is a crop sensory body. Since it is soft step, I am not able to use the darkest part of it (which is true 2-stop) for the bright part of the scene. In the holder, I have to move the filter all the way down, which brings the soft dark part of the filter onto the part of scene which is not properly illuminated — and this results in a bad exposure. Does anybody else face same problem, and if yes, how do you get around it?