U of S | Mailing List Archive | alt-photo-process-l | Re: fogged digital negative?

Re: fogged digital negative?

Pictorico premium OHP and Epson 2200 ultrachrome ink, using photo black on a glossy setting.

- Gregg

On Apr 12, 2008, at 4:46 PM, EJN Photo wrote:

Greg, What material did you use to make it? Inks?

Eric Neilsen Photo
4101 Commerce Street, Suite 9
Dallas, TX 75226
214 827-8301

SKype ejprinter

-----Original Message-----
From: Gregg Kemp [mailto:gregg@roanokesound.com]
Sent: Saturday, April 12, 2008 3:25 PM
To: alt-photo-process-l@usask.ca
Subject: fogged digital negative?

I was printing some cyanotypes today and one of my digital negatives
seems to have "fogged".  I've printed with this negative 3-4 times
before, with fairly consistent results.  But today it added a dark
ring around the print.  When I looked at the negative, it looked OK on
the inkjet side, but the other side had a strange, silvery fog to it.
The effect was to lighten the negative and print out darker around an
area about 6 inches in diameter.

Is this a normal problem for a digital negative - a short life span?
Or did I do something wrong - maybe use it too soon after printing the
negative.  I don't remember how long I waited before using it to make
a print.  But I've used it several times over several weeks.  I'll
make another negative, but just wanted to check here to see what I may
have done wrong.  The negative requires a 9 minute exposure for the
cyanotype and paper I'm using.  I'm printing with a UV lightbox that's
around 26 x 20 inches or so, and about 4 inches from the bulbs.

- Gregg

Gregg Kemp