Although I did get some nice shots, I couldn’t help but feel that they don’t quite capture the full experience of a real live lightning machine. While I can’t do much to recreate the visceral smell of ozone and nitrogen compounds formed by the ionizing sparks, or the reverberating whine of the beautiful but deadly spark gap, I did have an idea for bringing another aspect of the lightning show to the interwebs.
Why that particular camera? Partly because I found someone dumping a bunch of them on eBay for cheap, but also because they run CHDK, the infamous scriptable firmware for Canon cameras. This let me write some code to streamline the process of taking ten photos all at once, and then get them off of the cameras in a reasonable manner. By wiring all of them to the same 10-port USB hub, and using CHDK’s syncable USB remote feature, I was able to wire up a single button to make all of the cameras fire at once. Collect all the photos, find all of the good ones that are actually in focus, get them aligned and color balanced and scaled, and away you go. Bullet time lightning.
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