Important
information regarding processing
old or obsolete color films
What follows is presented
to help you decide whether or not to try rescuing your old color films
(for information on Kodachrome films, click here).
First: A little
bit of technical background.
- When film is exposed, the
silver halide crystals in its emulsion are converted by light into
specks of metallic silver. The silver forms a latent image.
- Color
development involves reacting the silver latent image with colorless
dye-precursor
chemicals to turn them into colored dyes, and then bleaching away the silver. In
this way, the original monochrome silver image is replaced by a colored
image made of dyes.
- These dye precursor
chemicals are part of the film's emulsion.
Second: How this
causes problems.
- When color films
remain unprocessed for many years, the latent image becomes fogged by
warmth and background radiation, and the delicate dye
precursors lose their ability to react. This results in images that are too
faint to print, or completely
blank.
- This is a physical property of the film, and even the most sophisticated chemical
formulations and processing technique cannot compensate.
- What this means is, even the most
expert chemist is unlikely to be able to salvage useable color images from very old color films, unless the films have been stored
cold.
Third: Our
solution to the problem.
- Since the
original silver latent image is more stable than the dye precursors, it
is very likely that useable images can be salvaged from many odd or
obsolete color films. If it is possible to keep the silver image, rather
than bleach it away, a black and white image can be recovered even if
the colors have been destroyed by time.
- We employ a special process for developing
very old or obsolete color films without destroying
the
original silver image. We are then able to evaluate the film and, if the colored
dyes are acceptable, we remove the silver and print in color.
Otherwise, we print in black and white.
- When this process is coupled with advanced scanning technologies,
deteriorated films often
yield quite good images, even though the negatives often appear unprintable to the
naked eye.
For this reason, our policy is to develop all obsolete color films using this
process, and to print them as black and white if the colors cannot be salvaged.
No results can be guaranteed.
However, if images cannot be recovered, we refund your payment.
We encourage you to send
your old films. At best, we will be successful in recovering images. At
worst, it will cost you no more than your postage.
Click here
for details.
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