Build a Camera Obscura Out of Cardboard
The camera obscura has been a tool for artists for hundreds of years. In this workshop, you build a camera obscura from scratch using discarded cardboard, paper bags, tape, glue, and tracing paper. You can use either a convex lens provided in the workshop or a pinhole poked in a sheet of aluminum foil to project a live image on a piece of paper. It's like making your own little live movie projector!
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Before digital cameras came along, I loved photography, darkroom work, and photo technology. I also enjoyed craft work, so I made the working scale-model pinhole camera out of cardboard. More recently, I wanted to make a cargo box for my bicycle, customized just for my needs, so I made the detachable cargo box with cardboard slide lock.
Gray Chang has worked as an engineer and technical writer in Silicon Valley for decades. He enjoys making stuff out of cardboard, doing experiments, studying science for fun, and making educational videos (science, tinkering, gambling math, and old Atari computer games).
