> Is that true, that digital prints made using those type of printers can now
> outlast regular prints made at a photo lab?

Pretty much. There are a number of variables and unknowns:

1. Digital print LE (life expectancy) is a function of the ink/paper
combination, not just one or the other.

2. Print degradation must be defined: usually it is a certain percentage of
color fade in the weakest dye or pigment.

3. Accelerated aging tests can't test for effects that are not known or
accepted. 

4. Different labs' and companies' standard for LE shouldn't be
cross-compared. That is, if a company says ink-paper combination A lasts "25
years" and Wilhelm Research says combination B lasts 30 years, you haven't
really learned that B lasts longer than A.

All this got started because Kodak seems to have made a unilateral Corporate
decision in the late '40s that good LE was too expensive and until the 1980s
turned away from processes that had good LE and followed a course of
producing cheaper color materials that had poor LE. Ektacolor prints from
the 1970s have perhaps the worst LE of any widely used photographic
materials. The reason Henry Wilhelm hates Kodak so much is that it is rather
cynical to BOTH ignore print LE in AND run comprehensive advertising
campaigns to the effect that photographs preserve memories! (We can easily
forget, today, how much advertising presence Kodak had back then.)

There's more to the story, but believe me I watch what I say in public when
it comes to some of the uglier legal incidents of those days.

I've editorialized in the past that I think we were damned lucky that early
digital inkjet prints had such execrably poor LE. What it did was to bring
LE to the forefront as a consumer issue. Now the manufacturers can't sweep
it under the rug as they did with conventional color materials--it's become
well accepted as a technical feature to be considered when purchasing a
printer. This is very lucky for us. It forces the manufacturers to address
the issue in their R&D. If early digital inkjet prints had had a print LE
of, say, ten years, the issue might never even have come up.

--Mike

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