Each iteration performed better and was tweaked as we logged more hours with the pixelstick. Our early controller prototypes were bare circuit boards, followed by a rather quaint wooden handbox (which we still quite like), and eventually on to higher and higher fidelity 3d printed enclosures. With the ability to control the density of the LED count while at the same time refining the custom aluminum extrusion, the current version of pixelstick began to take shape. We moved quickly into custom LED circuit boards, a more powerful ARM microcontroller and a sturdier design made of lightweight aluminum rather than plastic tubing. We got results, but weren't happy with the resolution of nor with the durability and usability of the actual device. Pixelstick began as a proof of concept using an arduino and some off the shelf LED strips. The process itself is fun and the excitement of seeing what you captured immediately can be extremely rewarding. It's as simple as choosing the length of the exposure (from a few seconds to a few hours) and moving a light source within the frame. Almost every DSLR, and most point-and-shoots, have a long exposure mode.
The first step is to make sure you have the right equipment. How do I start? Light painting is a fairly simple to do. Photographers have since added colored lights and performed deft physical feats to capture interesting images, but the technology involved has remained remarkably similar to what Demeny used in that first image. The technique was groundbreaking and became the touchstone for 125 years of unique and compelling works of art. In 1889, artist Georges Demeny created the first known light painting photograph, “ Pathological Walk From in Front”, by attaching incandescent bulbs to his assistant’s clothing and taking a long exposure.
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