If you can get some idea of starting times, you can process K-14 film in
B&W chemisty and obtain a B&W negative with the yellow filter layer
still in place (it's possible to remove the yellow filter layer, also,
but I don't recall how it's done -- it's part of the K-14 process).

Starting time can be roughly determined by putting a piece of leader in
your developer, and timing until (I'm told) it just starts to visibly
darken; develop for 20 times that interval.  That should get you
printable images, if you can either print through the yellow layer
(which will act as either fog for graded papers, or a low contrast
filter for VC) or remove it.

Of course not.The K-14 process is VERY complex, and there aren't
alternatives.Why don't send to Kodak?"Film price includes processing".

--
Dimitris Tzortzakakis,Iraklion Crete,Greece
Analogue technology rules-digital sucks
http://www.patriko-kreta.com
dimtzort AT otenet DOT gr the return adress is corrupted

I'd like to keep the color, though.

I'll send it to Kodak.  Thanks for the info.

Cheers,
-sd
http://www.zoom.sh

Some Dude asked >>I have some Kodachrome KP40 that i've shot and am wondering
if there are alternative processes I can use other than sending it to Kodak for
processing using k-14.  Perhaps E6?<<

The major difference between K-14 and other color processes (E-6, C-41, RA-4)
is that in all other color films and papers, the couplers which create the
image dye are part of the emulsion (with the exception of Cibachrome). In K-14,
the film emulsion contains no couplers, they are in the cyan, magenta, and
yellow developers.

If you want color images, you can obtain them ONLY with K-14.

Bernie

  There is still Kodachrome processing for 35mm film which
should work on the tungsten version. Kodachrome film can be
developed to yield a B&W image by developing it in a
standard developer like D-76. The yellow filter layer is
composed of colloidal silver. It can be bleached without
much damage to the image by using a bleach made of fresh
acid rapid fixer with about 15 grams of Citric Acid added.
This will remove the very fine silver of the filter layer
without affecting the much coarser image silver too much,
but one must be careful of it. You can print with the filter
layer there by using panchromatic paper. I think the only
one left on the market is Kodak Panalure Select. You could
also make a duplicate negative.
  The Kodachrome process is very complex. Kodachrome was
commercialized before Kodak had found a way to anchor dyes
in the emulsions to keep them from wandering. Agfa beat them
to the punch with this and Kodak chromogenic films had to
wait until they could come up with an alternative method.
  Because the dye formers (or couplers) are in the reversal
developers the film must undergo four separate development
steps with intermediate stop, rinse, etc., steps. The
processing method used since about 1937 works by
differential re-exposure of the color layers so that the
dyes are produced in the desired layer. A first developer is
used that preserves the color sensitivity of the layer
closest to the support. This is a panchromatic layer which
records the red image. After the first development the film
is re-exposed to red light through the base. Only the bottom
layer is sensitive to red light so the other layers are not
made developable. After the bottom layer is re-developed in
a developer containing the red dye former it is exposed to
blue light from the front. The yellow filter layer between
the first and second layers remains intact so only the top
layer is exposed. It is then developed in the developer with
the yellow coupler. The middle (green recording) layer is
developed by use of a fogging agent in the developer, which
produces the magenta layer. After a positive dye image is
produced in all three layers all of the metallic silver is
removed using a dichromate bleach. This also removes the
filter layer, which again, is made of finely devided silver.
The result is a full color positive dye image. Of course,
there are many intermediate steps which I have left out.
  The original Kodachrome process, used for only about one
year, required differential penetration of a bleach into the
developed layers. The film was washed and dried between each
development step. Drying was required so that the
permeablity of the gelatin would be predictable.
  This was the process used for the very first (1935)
Kodachrome, which was available only as 16mm movie film.
When the differential re-exposure process was introduced the
film was made available in a wide range of sizes including
35mm, roll film, and sheet film up to 16x20 inches. All was
processed at Rochester although Kodak eventually built
processing plants for movie film and roll films in a couple
of other cities.

Somedude:

You can process Kodachrome in ordinary black and white
chemistry to get  black and white negatives. Remember to
wipe off the remjet backing BEFORE loading it in your
reels, or you'll get a sticky sludge that takes a lot of time
to remove.

Al Doyle
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