RE: UV Exposure Unit

Mac Cosgrove-Davies (mcosgrovedavies@worldbank.org)
Thu, 30 Oct 1997 22:07:10 +0000 (GMT)

I build and use UV exposure units identical to the one you
described (four tubes - ~7" from the print). Gum exposures
range from 1-5 minutes, which is very comfortable for me.
Cyanotypes and other processes are a different story, however.
Exposure times start at about 8 minutes for cyans, and go up
from there.