This video is a field recording of modulated light, captured out the window of a car while driving in New York City. The photodiode amplifier was similar to Lite2Sound PX, and it was mounted inside the body of a junk 8mm film camera. Inside the camera, a photodiode is mounted where the film once was, and the shutter is removed. This enhances the performance of the photodiode amplifier by giving it extended range to pick up interesting sound sources easily from a distance. Its audio output was sent to the mic input of a DVD camcorder for simultaneous capture of video and optical sound.