Digital BW, The Print

It does partly reflect where I live, as these processes are all very 
humidity dependent, and the Thames valley is thus not a good place to 
store film. Storage is nearly all in archival sleeves for film, but not 
in temperature and humidity controlled environment, and not in inert gas 
atmosphere, so certainly not optimal.

Vinegar is coming to us all with tri-acetate emulsions (including all 
35mm since the early 1950s). I think the best advice is to get as much 
transferred to digital as soon as you can, as well as keeping the film 
as well as you can. Older material is likely to keep better, although 
again, nitrate base is unstable 
http://www.kodak.com/US/en/motion/support/technical/storage_nitrate.jhtml?id=0.1.4.11.12.12&lc=en

Polyester based films are good candidates for long term storage, as also 
are glass plates and I think collodion.

Regards

Peter Marshall
petermarshall@...     
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and elsewhere......



djon43 wrote:

>Peter's experience indicates exceptionally bad processing and/or
>storage, and or profoundly bad personal luck. 
>
>I have a collection of 35 and 828 film of various types going back to
>1939 (my mother's home-processed Anscochrome)...none of it is
>"deteriorating" though my father's Kodachromes from Korean War are
>shifting colors (though not his earlier Kodachromes from Panama), as
>are some of my own Kodachromes (though not my E4) from 1970-75. I also
>have family negatives going back into the 1800s that are not
>"deteriorating." 
>
>I have however seen 8X10 negatives from WWII whose emulsions were
>bubbling off. 
>
>IMO one should take good care of one's negatives as long as is
>feasible, counting on digital storage in the event people in the
>future think there's a reason to retrieve our wonderful images.
>
>Peter Marshall <petermarshall@c...> wrote:
>
>  
>
>>One of my reasons for moving towards digital storage is the rate at 
>>which my analogue negatives are deteriorating. Almost all modern 35mm 
>>negs for example are on tri-acetate base, which is not stable. 
>>    
>>
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