Ive been thinking of rigging up my own DIY focusing rails. if you have no idea what those are, here is a shot of one: It would certainly help with macro work, on a tripod of course. Anyone use any particular rail(s) that they would like to share some experiences with? Im trying to find a DIY site for it, but I might have to design it all myself. Possibly using a large bolt and 2 nuts (ummmm quiet you!) when turned the bolt would pull one of the nuts which is attached to the camera plate.