Here's what was known about permanance in 1993, all 758 pages of it.
<http://www.wilhelm-research.com/book_toc.html>
Pigment inks for inkjet printers have reached the point where longevity
of 100 years or even 200 years is now being claimed. Here's a big bunch
of papers <http://www.wilhelm-research.com/>
But B&W film might still be the best. Even if you can't get an archival
print you might well get archival negatives. Perhaps a B&W negative
combined with a scan and inkjet print with special B&W ink setup.
Chuck Norcutt
Brian Swale wrote:
> Hello all,
>
> Some time ago I mentioned that I am involved in planning and implementing
> a family re-union, the first for more than 40 years, and in the 150th
> anniversary of my great-grandfather and his bride coming to New Zealand.
>
> http://homepages.caverock.net.nz/~bj/SFR/
>
> I have several things to get in train before the next committee meeting in 2
> weeks' time, and I have got back into arranging a photographer.
>
> I have been working on the presumption that black and white prints would be
> the best form of photographic record, when it comes to making a good
> archival record. I based this assumption on the age of prints I have been
> working with when making images for use on the web-site; some of these
> images were well over 100 years old.
>
> This morning, and it is still morning here, my assumption took a huge knock.
>
> I had a conversation with a well-respected photographer in Christchurch city,
> and he told me that the B&W papers available here now, mainly from Kodak,
> have a guaranteed life of no more than 5 years. He said they have built-in
> obsolescence. He added that to import archival papers would cost a fortune.
>
> He also added that the oldest prints I have would be sulphide prints where
> the silver-halide had been substituted with some form of sulphide.
>
> Further, there is no commercial B&W lab available in Christchurch; I was
> beginning to suspect this; what he told me may confirm it. He closed down
> his B&W work about 4 years ago. The last B&W film I had developed, a
> month ago, was processed in Wellington city.
>
> I can see from the web-sites of major photo labs that medium format film
> processing is also just a minor activity in this city now.
>
> I obviously have a lot more to do and urgently. :-((
>
> Brian
>
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