A simple gadget to create rainbows for light painting. It can also be used in other interesting ways to light paint big areas of something or thin air. Photography is made in low ambient light - at night in an open space where you can move freely. The exposure is not critical, on this pictures it va...
By: Ginko Balboa
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from Instructables: exploring - technology - robots http://ift.tt/1HkakrX



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