Gerald, Thanks for the reply. LED manufacture required 47ohm resistor and 4.5 volts to power the Bright White variety. I am shooting with a CANON 10D so whit balance should not be an issue but they are not very diffused. There does appear to be a hot spot in the middle of each projected beam. Hopefully 15 will overlap enough to overcome this problem.
Frank, Most WHITE LEDs (As opposed to those that are bright blue) have a very distinct blue cast when used with daylight colour transparency film. However, it will work well with digital cameras provided you set the white balance to automatic. Furthermore, some do not have even light distribution. Make sure that 3 batteries will not over-run the LEDs . = Normally two would suffice if the LEDs are connected in parallel but I am not sure if two AA batteries have enough current available to drive 15 LED,s connected in parallel Gerald Frank Rubino wrote: > Macro Photography light source. > > I am planning to build a ring light made up of 15 LEDs , 10000 mcd high > output white LEDS powered by 3 AA batteries. If anyone has thoughts on this > idea I would love to here them. I am hoping that this will provide enough > light for focusing as well as shooting. If all works out I should be in the > $45.00 cost range for this project. > > Thanks Frank Rubino _______________________________________________ Cameramakers mailing list [EMAIL PROTECTED] http://rmp.opusis.com/mailman/listinfo/cameramakers
