Camera ring light
thingiverse
This is an expedient attachment method for coupling a 24-neopixel ring PCB to a Sony E 30 mm F3.5 macro lens as an ad-hoc ring light setup. It's engineered to secure the board directly onto the lens, allowing standard filters to remain usable on the lens without modification.\r\n\r\nI've only tested this on the specified lens, but in theory, it should fit any 49mm-filter-equipped lens.
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