I think we wobbled through this territory a year of so ago but as I recall
the conversation was in regards to green glass. DuSel also says that blue
gel has no contrast effect on the Ziatype but does change its color.
Another interseting observation he has made concerns print times and
contrast. He says he got a Palladio light bank and his time went to 1/4 of
what they were before but the contrast went way down. We suspect that the
contrast may in fact be related to the print times and that the blue gel
just increases the print times which in effect, increase the contrast.
What say the List?
Bostick & Sullivan
PO Box 16639, Santa Fe
505-474-0890 FAX 505-474-2857