Led macro light

Macro ring flashes are expensive so designed this for the Nikkor 60mm micro.

It uses 9 leds grouped on 3 groups of 3 leds serial mounted, this way can be feed with a 9v battery without needing resistors. Each arm can be adjusted so you can create shadows if needed. Leds are inside, straight and outside oriented on each arm, so they focus on the min focus distance.