Ah the time lapse movie. I am sure you have all seen them. But how do they make them? Well, most use a camera timer. A device specifically used to fire the camera shutter at specific time intervals. But what if you don’t have one of those?
The best way to make your own camera shutter is to use your calculator. This does require a bit of knowledge about your calculator. But it is worth it for sure. Most Texas Instruments graphing calculators will work.
In this instructables, they use a Ti-83+, I personally used a Ti-89 titanium. It worked very well. I suggest you all give it a go.