PHOTO: Durability(was:Re: AIS: REF: AIS as International Registration Authority

Anner brings up an interesting question: how long do we want an image to
remain, [and continue to remain a faithful image of the registered seedling]?

A comment in the thread earlier had mentioned fading of slides.  Anscochrome
(how many of us are old enough to remember that miserable product?), the early
3M films, and, I'm sorry to say, all the versions of Ectachrome have faded,
either to nearly a blank image, or one that is so far from the original colors
as to be useless.

However, I have some of the old Kodachrome (ISO or ASA 10) that one bought
Kodak processing as part of the original process with the mailer in the box)
that my mother took in the mid 1940's.  These, I believe, were coated with a
layer of either shellac or a varnish of some sort by Kodak.  They look like
they were shot last week.

All of the Kodachromes I have taken over the years--lacking the coating--have
also remained amazingly stable.

Even some color prints from Eastman Kodak negatives on Kodak brand paper still
are reasonably close to the original, although the color has shifted
slightly.

I am posting to Iris-photos a scanned image from the above negative-to-paper
process above of SGT. PEPPER, one of my own introductions dating from the
early 1970's--R. 1973, introduced by Tell in 1975.  The image is faithful to
the original--remarkably so despite the thirty-something years since the photo
left the camera.  The variety has long since disappeared and probably is
present in no gardens anywhere.

Neil Mogensen  z 7 western NC Mountains

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