pete hogan
Well-known
Refrigerator + Tri-X
I believe someone is going to make them.
I believe someone is going to make them.
I see the point of economies of scale and the effect on quality control.
But...
- Even by industry standards the quality control at Kodak was legendary. They were and still are run by a bunch of idiots, but the people actually making the sausage are brilliant.
- Ilford is much smaller than Kodak or Fuji and their QC is top notch.
- Adox was even smaller than Ilford and while their QC was not as good, it wasn't a total disaster either. My guess is that the QC at a firm like Adox was no worse than the average company in the 1930's - 1950's (Kodak excluded).
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Kodak claims a 300 year lifespan for Estar based negatives. It's polyester based, so that's pretty believable.
Traditional black and white negatives should last a very, very long time. I don't think that 300 years is so far fetched.
Color negative is more unstable. The different layers shrink at different rates and the dyes are unstable. Some color slides won't last more than 20 years.
Kodachrome was the most stable of color films. Kodak predicted at least 100 years stability, if stored in the dark.
The most stable color process probably was 3 strip Technicolor, as it was captured on three strips of black and white film (filtered for red, green, blue), which is a lot more stable than color negative. The projected print is actually the result of a printing process utilizing the three matrix, not chemical voodoo.
Worldwide national archives use microfilm stored in stainless steel containers in climate controlled environments (salt mines etc). to ensure the long term preservation of their most important documents (hundreds of years).
Digital media (the best of which is DLT tape and maybe the new M-DISC), is dependent on constant migration.
Photo_Smith said:We have images in our archive that are over 100 years old, some are colour too.
Archivist's don't work using 'luck' they use tested materials, like Harry mentioned above some of the Kodak B&W are estimated to last over 300 years, some of the materials in our archive are supposed to be rated at 1000 years (obviously estimated) like FICA:
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So I'd say pretty much the opposite of what you say is true, no medium is going to survive by luck, planning and proper archival treatment can and will ensure valuable images will outlive us and last many more years.
Not long ago one of the first-world governments was still backing up digital images on film. I don't know if htat is still so or not.
Indeed - film is long gone in the 3rd world, which is ALL digital now.
You would also be fine, if the original of the Mona Lisa is gone and you have only a copy to look at?...
'Robinson Crusoe', which was originally printed a little less then 300 years ago, is still read today by many people, not because we still share the original books, but because several someones over the years thought it was worth preserving and reprinted it time and time again.
The same will be required of photographs. And it won't matter whether they are digital or analogue photographs. Unless you are supremely lucky (ie; your print, inkjet or otherwise, lies wrapped and undisturbed in a dark, dry, cool location), it will have to be re-printed by many people, many times, over the next 300 years in order for it to survive in any meaningful way.
In my humble opinion, there is very little difference between saving/renewing, or reprinting, a digital image several times over the next 300 years to preserve it, than there is in resaving/renewing, or reprinting an analogue image several times over the next 300 years in order to preserve it. Either way actions must be taken to preserve it.
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You would also be fine, if the original of the Mona Lisa is gone and you have only a copy to look at?
Most likely the curator... 😛Is the one at the Louvre right now the original? Who knows?