Thanks everyone. Yea, trying to prevent the duplicate purchases later on, but since everything for the Hitech Lucroit seems to start at $200 and go up (ring, holder, filters) I may not have a choice. I find it funny how many places make a 100mm, but the next size up seems to be anywhere from 130mm Cokin, 150mm Lee, to a 165mm Hitech. And of course the vendor sites have no idea who Hasselblad is.