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RE: fogged digital negative?

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  • Subject: RE: fogged digital negative?
  • From: EJN Photo <ejnphoto@sbcglobal.net>
  • Date: Sat, 12 Apr 2008 15:46:53 -0500
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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