Charles,
I did used a contact method, using a piece of plate glass with four
heavy-duty clamps to secure the plant materials atop the paper, all on
top of a thick piece of plywood. It looks scary, but it works. On the
top left (column one) image there is a cresent shape just off the stem
which is a puddle from plant "ooze." I have another test to scan, this
time made under UV BLB bulbs in a contact frame for thirty minutes. It
looks pretty much like the top images in column 2 & 3, but with less
"aura." I think the aura may be partly a process of heat/humidity.
More when I have the time, a very scarce commodity for me at the
moment. I'll be posting an announcement about a large project I'm
launching, presently in the preparation phase.
Darryl Baird
-----Original Message-----
From: ryberg [mailto:cryberg@comcast.net]
Sent: Sun 9/4/2005 3:24 PM
To: alt-photo-process-l@sask.usask.ca
Subject: Re: Lumin prints tests
I've exposed a lot of in and out of date photo paper to the sun at
various times and have seen blues, pinks, oranges and, mostly
browns--but
never two or more colors on the same paper. I had never used plant
material
to make such a print, so I tried it today.
To my surprise, I did get multiple colors, but then realized that
except
for the brown tones, all the colors were dissolved from the plant
rather
than being photographic in nature. To test this I fixed a sheet,
washed it
and made another "exposure." Sure enough, the colors migrated into
the
gelatin surface of the paper. Of course, there was no brown
background from
the silver.
Still, I'm not sure this is the only thing going on in the lumin
prints
you have linked to. In fact, I think most of you are not using a
contact
printing frame, just setting the plant material on the paper. Is this
correct? If so, transfer of color from the plant to the paper seems
pretty
unlikely.
Please keep the list updated with all your tests.
Charles Portland Or
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