I just happened upon this trick when testing what it was like filming from inside my guitar. *Note this effect is due to the rolling shutter, which is non-representative of how strings actually vibrate. Tips: • You must have the strings brightly backlit to get the camera to capture at such a high frame rate (pure conjecture). You can see how the effect fades when the buildings come into view.
![Guitar Oscillations Captured with iPhone 4](https://cdn-ak-scissors.b.st-hatena.com/image/square/78494bf0e247362926af1d2b2d6af79d782cd542/height=288;version=1;width=512/https%3A%2F%2Fi.ytimg.com%2Fvi%2FTKF6nFzpHBU%2Fhqdefault.jpg)