I just won a medium format lens on Ebay (A Bronica Zenzanon f2.8 75mm, whatever the heck that is) And just now, after work I went and bought some 1/8th inch plywood, woodworking tools, some heavy black fabric and some sewing needles. I've decided on a bellows system, held rigid by a notched-locked wooden frame. This thing is going to be a monster. I'll update this thread as progress is made. By the way, it was this fellow who finally inspired me to try it myself. Have any of you undertaken a DIY project like this? Do you guys know of any pitfalls you'd like to warn me of when creating your own tilt-shift lens?