U of S | Mailing List Archive | alt-photo-process-l | Re: UV-densitometer

Re: UV-densitometer

Paul wrote:

Has anyone ever made an exposure unit with these LEDs?
It would take hundreds, if not thousands, of them to produce enough light to get several-minute exposures at decent sizes with typical alt processes. At the very least, a construction nightmare. You could probably make a contact printer for silver-gelatin paper without too much difficulty, but why bother?

Best regards,