Yves,
If I understand your question correctly, you are wondering about inkjet
negatives and them degrading after repeated use and exposure to UV light?
I am going to run some tests on this when I get some time - basically read
the density of various colors and then leave that negative in my plate burner
and log the exposures and re-measure at intervals as I expose other prints.
In the meantime, I have negatives made on the 2200 with Ultrachrome inks and
on the epson R2400 which uses the Ultrachrome K3 inks and have used them for
about 10 exposures with no noticeable change in density. This would be about
two hours of exposure total.
Hope this is helpful,
Mark Nelson
Precision Digital Negatives
In a message dated 4/13/06 6:12:13 PM, gauvreau-yves@sympatico.ca writes:
> One relatively important question I have about using transparencies is
> this,
> how long they last? And I want to say I like the idea of doing prints from
> the back like that, it's not the method I'm concerned with it's the material
> used. The limited knowledge I have of them is that they are in general quite
> succeptible to UV and degrade relatively fast in poor conditions. I saw a
> few times that pigments on paper can last as long as a few centuries, if my
> information is exact these transparencies would be dust by the first century
> and probably useless in about 10 to 25 years, yellowing, lost of
> transparency and even physical deformation. Nothing I would like better then
> be wrong on this one.
>
Received on Thu Apr 13 22:24:44 2006
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