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

RE: fogged digital negative?


  • To: alt-photo-process-l@usask.ca
  • Subject: RE: fogged digital negative?
  • From: EJN Photo <ejnphoto@sbcglobal.net>
  • Date: Sat, 12 Apr 2008 15:46:53 -0500
  • Comments: "alt-photo-process mailing list"
  • Delivered-to: alt-photo-process-l-archive@www.usask.ca
  • Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=sbcglobal.net;h=Received:X-YMail-OSG:X-Yahoo-Newman-Property:From:To:References:Subject:Date:Message-ID:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Mailer:Thread-Index:In-Reply-To:X-MimeOLE;b=h+EjZ20039UDDmuiyOCiJ3nTOs72wXgGDaOvfcmTv9g9EE64kpfHaCA1rQOvS8C2w8dg9BdNICVfPJxMK4yyB/Gt+uh0LSBuHVah1tIKWSVcWCejQT2LaRHbZQX6U/7wc9a3wrka123Na2JlhA1Xy4qeFedmV3CJ26FHjKjsFss= ;
  • In-reply-to: <7EE72B09-0214-486A-AD2A-5E77758FC45B@roanokesound.com>
  • List-id: alt-photo-process mailing list <alt-photo-process-l@sask.usask.ca>
  • References: <7EE72B09-0214-486A-AD2A-5E77758FC45B@roanokesound.com>
  • Reply-to: alt-photo-process-l@usask.ca
  • Thread-index: Acic24AKAyQsfkuPQDusT0LVqPPDhAAAsqWQ

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

Eric Neilsen Photo
4101 Commerce Street, Suite 9
Dallas, TX 75226
214 827-8301
 
http://ericneilsenphotography.com
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