Joe Herman has taken an old film projector, a Raspberry Pi, a camera module and a stepper motor and created a machine that will help to convert 8mm and 16mm film reels into a digital format. He had to re-focus the camera module and he’s used a magnetic reed switch to detect when the frame has been moved on by the stepper motor to trigger the camera to take a photo of that particular frame. The actual processing of the photographic images was done on a more powerful Linux box. He’s written an article over on the IEEE Spectrum website, so head over there to read more.
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