Selfmade LED Ringlight for Marco Photography (IR) tutorial - how to build a cheap led ringlight (<20EUR) for macro photos sample photos -> uncroped and shot with the LED ringlight as only light source used hardware Pentax istDS Digital SLR 50mm/f1.4 (manual focus) Extension Tubes 25mm, 12mm LED Ringlight parts list led-ringlight 24 High Power LED's (white, 13000mcd, 3.2V, 20mA) ---> ebay.de 9,- euro 1 Step-up Adapter Ring (58mm to 72mm) ---> ebay.de 8,- euro 4 AA-Batteries (1.2V, 2000mA, accu) -> 4.8V total 1 Power-Switch 1m Cable 1 Hot Clue attn: i used no additional resitors to limit the power. as a result of this the led's are powered 50% over specification. but it is no problem for the led's i used. how to build the LED Ringlight {hot link to this tutorial: http://www.xdeltax.com/tutledringlight/index.html}