When I first began exploring the Kodachrome slides archived here:

http://webapp1.dlib.indiana.edu/cushman/index.jsp

I noticed that the earliest examples were off-color. Further
investigation of the site led me to this page:

http://webapp1.dlib.indiana.edu/cushman/projectInfo/colorRestoration.jsp

which states "Early Kodachrome color slide film, from the time of its
release in 1935 until the film and processing methods were modified in
1938, fades and becomes red."

This was the first I'd heard that Kodachrome wasn't fade-resistent from
the get-go. Sounds like an interesting story here.

When I first began exploring the Kodachrome slides archived here:

http://webapp1.dlib.indiana.edu/cushman/index.jsp

I noticed that the earliest examples were off-color. Further
investigation of the site led me to this page:

http://webapp1.dlib.indiana.edu/cushman/projectInfo/colorRestoration.jsp

which states "Early Kodachrome color slide film, from the time of its
release in 1935 until the film and processing methods were modified in
1938, fades and becomes red."

This was the first I'd heard that Kodachrome wasn't fade-resistent from
the get-go. Sounds like an interesting story here.

Did you see how they were able to restore the faded
Kodachromes by using known fading patterns to recreate mathematically what
the dyes on the slide might have been like at the time of processing?
Amazing! I assume you could use similar fading data for motion picture
restoration as well.

"Paul Penna" <tterrace at (no spam) sonic.net> wrote in message
news:tterrace-9E16A0.18321601072009 at (no spam) nnrp-virt.nntp.sonic.net...
When I first began exploring the Kodachrome slides archived here:

http://webapp1.dlib.indiana.edu/cushman/index.jsp

I noticed that the earliest examples were off-color. Further
investigation of the site led me to this page:

http://webapp1.dlib.indiana.edu/cushman/projectInfo/colorRestoration.jsp

which states "Early Kodachrome color slide film, from the time of its
release in 1935 until the film and processing methods were modified in
1938, fades and becomes red."

This was the first I'd heard that Kodachrome wasn't fade-resistent from
the get-go. Sounds like an interesting story here.

Thanks for that link! Did you see how they were able to restore the faded
Kodachromes by using known fading patterns to recreate mathematically what
the dyes on the slide might have been like at the time of processing?
Amazing! I assume you could use similar fading data for motion picture
restoration as well.

Derek

In article <4a4d630b$0$11859$9a6e19ea at (no spam) unlimited.newshosting.com>,
"Derek Gee" <dgeeSPAMSUCKS at (no spam) twmi.INVALID.rr.com> wrote:

"Paul Penna" <tterrace at (no spam) sonic.net> wrote in message
news:tterrace-9E16A0.18321601072009 at (no spam) nnrp-virt.nntp.sonic.net...
When I first began exploring the Kodachrome slides archived here:

http://webapp1.dlib.indiana.edu/cushman/index.jsp

I noticed that the earliest examples were off-color. Further
investigation of the site led me to this page:

http://webapp1.dlib.indiana.edu/cushman/projectInfo/colorRestoration.jsp

which states "Early Kodachrome color slide film, from the time of its
release in 1935 until the film and processing methods were modified in
1938, fades and becomes red."

This was the first I'd heard that Kodachrome wasn't fade-resistent from
the get-go. Sounds like an interesting story here.

Thanks for that link! Did you see how they were able to restore the
faded
Kodachromes by using known fading patterns to recreate mathematically
what
the dyes on the slide might have been like at the time of processing?
Amazing! I assume you could use similar fading data for motion picture
restoration as well.

Derek

Did you notice that on the page for each individual shot there's a link
to the original unrestored slide? Without denigrating the accomplishment
in any way, I would characterize the restorations as "amazingly less
bad." Note how they resemble two-color processes.

The whole collection is an amazing resource. You can spend hours and
hours going back in time.