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Time-Lapse Photography with your Inexpensive Canon Camera

Jul 20, 2010, 17:35 (0 Talkback[s])
(Other stories by Akkana Peck)

"Parts one and two talked about some of the cool features you can enable on your camera by installing the Canon Hack Development Kit. But the most powerful CHDK feature is the scripting interface.

"Scripting is how I first found out about CHDK -- at a workshop at WhereCamp. Jeffrey Warren of Grassroots Mapping demonstrated balloon aerial mapping using a cheap Canon camera and materials like a cut-up soda bottle, string, a garbage bag, tape, and open source photo stitching software.

"It's a phenomenally cool project. Grassroots Mapping folk have traveled all over the world: they've helped villagers in Peru and El Salvador make maps to prove ownership of their homes, and charted the spread of the BP oil spill in the Gulf of Mexico.

"Lots of fun, but how does this tie in to CHDK? When your camera is 500 feet up hanging from a balloon, how do you tell it when to shoot photos? You could build some kind of radio-control gizmo, but that's expensive and complicated. All you really need is a script to shoot at regular intervals -- say, every 10 seconds."

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