Re: fogged digital negative?
Perhaps I did not express my idea properly.
I did not mean that you would need to wait two weeks before print
with the DN's, but before you archive them in negatives sleeves or
any other method you use. Usually I print with DN's just one or two
hours after they were produced.
When in a extreme hurry, as John said, I use a print dryer.
On Apr 13, 2008, at 3:29 PM, Gregg Kemp wrote:
wow! 2 weeks is a long time. I haven't had trouble with others
that I've used after drying a short time (less than a day, a day or
two. But I really haven't paid much attention to how long I've let
the negatives dry before using. I printed a replacement for the
bad one last night and I plan to print with it today. But, I'll
take your suggestion and print another to "cure" for a few days.
I'm also going to pay more attention to the time I allow the
sensitized paper to dry before printing with it. I think that may
have been a problem also, as Jon pointed out. I had a couple of
prints stick to the OHP around the edges of the paper - just a
little, but enough to know they definitely weren't dry yet.
Anyway, thanks for the feedback from everyone. I think I just need
to not rush things.
On Apr 13, 2008, at 7:44 AM, Manuel Gomes Teixeira wrote:
I know exactly what you mean.
This problem happened to me several times with both the
Pictorico and the Agfa Copyjet.
The only way I found to overcome this, was to let the OHP to dry
for several days without any permanent contact with any other
surface, like a film sleeve.
I think that the problem is in chemical interaction with with
the ink with and the paper before the negative is completed
"cured". When I said several weeks I mean at least two weeks.
If I don't respect this drying period I'll notice some funny
"fogging " patterns that fit perfectly with the contact zones of
the OHP film with the paper.
My DN's are printed with the Epson 2200.
I hope this helps
Manuel Gomes Teixeira
On Apr 12, 2008, at 9:25 PM, Gregg Kemp wrote:
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
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.