Hi all,

I'm thinking about making a custom light source using LEDs, and don't know which is the most appropriate power the light source should have and also which is the distance the light source must be set from the paper...

The light source will be used to expose contact sheets, if it makes any difference. I'm considering to build it with LEDs to have no warmup time and no loss of color over time. Also, the light should be a bit more directional this way, I imagine.

Can anybody help, please?

Thanks in advance
Carmelo