See also: http://www.apug.org/forums/forum41/1...rger-head.html
And also http://www.huws.org.uk/ for a working 4x5 head and electronics.
For VC paper you need a combination of blue or green light or a combination of both.
Grade 5 needs the royal blue led in combination with an UV led, as I read here on apug.
For graded paper you need blue light.
For color you need YMC.
I think when you use an RGB led you can have every color you need, but maybe you also need an UV led.
On huws site he is using only 30 1 Watt leds for a 4x5 head.
Today you can buy 3 Watt RGB leds for 10 euro's a piece.
I do not have any knowledge on electronics, I just want a 10x10 led head as cheap as possible
Just gathering a lot of information on the net, prior to building mysel one.
With some help of people who knows their electronics.
Last edited by mhulsman; 12-01-2009 at 01:06 PM. Click to view previous post history.
Reason: forgot color printing.