Designing the film holder has to be the most difficult parts of this project. I spent a month on the last one. The design is fine, but the search for better materials is constant. I’m going ultralight this time. These 2 holders are made(so far) from 3/16″ foam board and .040 chip board. Super 77 makes assembly quick and easy. The dark slides may end up being polyethylene, but illustration board is my current choice. These holders will weigh a fraction of the previous, and if they work well, I’ll make 4 more. They should be finished by the end of the week. Tomorrow, hopefully, I’ll sew the dark cloth together with the help of my neighbor.