digital negatives for cyanotype

Pekka Nikrus (pnikrus@uiah.fi)
Fri, 19 Apr 1996 13:20:47 +0300 (EET DST)

Hi

I'm new in this list, but I've seen some texts and I'd like to add what I
know:

I made a series of digitally processed pictures on cyanotype.
The negatives were printed on a AGFA photosetter (1200/2400dpi) set to
print 2400 dpi. I used a simple ditheration (900dpi) as screening. Why
900dpi? Well, that seemed to be the finest print that the photosetter
could produce without loosing too much tones in the highlights.
The photosetter was set on 2400dpi to get a smaller dot.

I printed the cyanotypes on a very grainy Arches Aquarelle 300g. What
happened was that the individual dots were lost and 'real' grey tones
appeared. Looking carefully, with a lupe, on the print gives the feeling
of a grainy negative rather than a dithered digital one. You really can't
tell where you see the dots or where they are tones or if it is just the
grainy paper.

Some of the pictures are viewable at:

http://www.polycon.fi/ART/pekka/
(these pages are to renewed this spring)

Now I'm working on four ways to combine digitally processed images (I
hate the word manipulated! It doesn't fit in art.)
They are palladium, photo-gravure (polymere or copper I don't know yet),
three-colour gum and CMYK ultra-stable (pigment printing).

I'm open to ideas.

_PEKKA NIKRUS__<pnikrus@uiah.fi>________UNIVERSITY OF ART AND DESIGN HELSINKI
http://www.polycon.fi/ART/pekka/ DEPARTMENT OF PHOTOGRAPHY

"Everybody's searching for something they say, I get my kicks on the way"