High Power Ring Light
For my turntable photogrammetry projects I wanted a bright, compact, and cross-polarizable light source. Since professional ring lights at that power level are almost always flashes (or extremely pricey, or big) I decided to make my own. A flash ring light would have been easy to find and to use but considering that this would have to trigger a few hundred times with a delay of a few seconds in between... mhhh... nope, I'd rather not. Also, fine tuning the angle between polarisation filters with a flash isn't that much fun either. So, permanent light it was.
I decided to go with a high power LED stip, with dense LED packing and neutral white color. CRI could have been a bit better but that's an upgrade for another day.
The housing is made of aluminium strips, held in place by turned wood rings, which were made reflective with aluminium tape (or something similar).
The heat dissipation via those aluminium strips works but for the next one I would certainly try to incorporate some air flow or something that can handle more heat.
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