This is 1 minutes worth of footage using a technique called "Lens whacking". This is my first try. Many thanks to my daughter for letting me film her in the playground and whilst doing her homework!

Here's what I learnt:
Requires a steady hand: not easy to keep focus at the same time as trying to control the level of the light leaks.
When done right, and in the hands of a skillful lens whacker this technique can give a very film like effect straight out of the camera.

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