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#1
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K-14 Process- alternatives?
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? I don't care too much about the pics but would like to at least get a somewhat visible image. Thanks! Cheers, -sd http://www.zoom.sh |
#2
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K-14 Process- alternatives?
Some Dude wrote:
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? I don't care too much about the pics but would like to at least get a somewhat visible image. 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. -- I may be a scwewy wabbit, but I'm not going to Alcatwaz! -- E. J. Fudd, 1954 Donald Qualls, aka The Silent Observer Lathe Building Pages http://silent1.home.netcom.com/HomebuiltLathe.htm Speedway 7x12 Lathe Pages http://silent1.home.netcom.com/my7x12.htm Opinions expressed are my own -- take them for what they're worth and don't expect them to be perfect. |
#3
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K-14 Process- alternatives?
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 ? "Some Dude" ?????? ??? ?????? ... 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? I don't care too much about the pics but would like to at least get a somewhat visible image. Thanks! Cheers, -sd http://www.zoom.sh |
#4
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K-14 Process- alternatives?
"Film Price Includes Processing" was discontinued in the United States many
years ago, the Federal Trade Commission deemed it restraint of trade. One reason why it's always useful to indicate your country of origin in questions of this sort. Kodachrome is a complicated beastie, but as OP indicated it can be processed to some sort of BW image, OTOH I have 400 feet of TMax 400 in my freezer and see no need to experiment. It might be fun to try, I'm sure there are all sorts of threads about removing the dye layers in older postings. You do not want to talk the ignorant operator of your friendly neighborhood mini-lab (he probably thinks of Kodachrome only as a song his dad sang) into trying to process it. The older Kodachromes are not emulsion hardened and melt in the 100 degree F. film processors and the newer ones will deposit Kodachrome's RemJet backing as black cruddies all over the tanks and racks, invoking all kinds of colorful vocabulary. -- darkroommike ---------- "Tzortzakakis Dimitrios" wrote in message ... 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 ? "Some Dude" ?????? ??? ?????? ... 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? I don't care too much about the pics but would like to at least get a somewhat visible image. Thanks! Cheers, -sd http://www.zoom.sh |
#5
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K-14 Process- alternatives?
I'd like to keep the color, though.
I'll send it to Kodak. Thanks for the info. On Wed, 26 May 2004 02:58:25 GMT, Some Dude wrote: 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? I don't care too much about the pics but would like to at least get a somewhat visible image. Thanks! Cheers, -sd http://www.zoom.sh Cheers, -sd http://www.zoom.sh |
#6
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K-14 Process- alternatives?
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 |
#7
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K-14 Process- alternatives?
Jazztptman wrote:
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. Well, the other major difference is that the three emulsions receive their reversal exposures and color development separately, though this probably follows from the fact that the dye couplers are in the developers. What it does do, though, is pretty much guarantee that there will never be a home K-14 kit the way there have been for E-3, E-4, and E-6 (as well as C-22 and C-41). -- I may be a scwewy wabbit, but I'm not going to Alcatwaz! -- E. J. Fudd, 1954 Donald Qualls, aka The Silent Observer Lathe Building Pages http://silent1.home.netcom.com/HomebuiltLathe.htm Speedway 7x12 Lathe Pages http://silent1.home.netcom.com/my7x12.htm Opinions expressed are my own -- take them for what they're worth and don't expect them to be perfect. |
#8
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K-14 Process- alternatives?
E6, c41,ra4 all of them have half of a dye (coupler), Cibachrome contains
the whole dye, K14 has dyes added during processing (no dye in emulsion prior to processing)Cibachrome materials processing depends on destruction of the dye. OK, why does everyone have to get so picky here. I answered the original question in a simple matter so as not to overly complicate the issue. K-14 is complicated enough without trying to explain the process in detail, and I have seen many misunderstandings about how it works on previous posts on the subject. Yes, Cibachrome is different, which is why I made a passing comment that it WAS different from E-6, C-41, RA-4, etc...I just didn;t want to get into a full post on how that process worked since it was not related to this subject. Yes, the coupler in these other processes forms the imaging dye when it reacts with oxidized color developer. There is NO coupler in Kodachrome films, it is part of the individual color developer steps and each layer is reversed (2 by physical light exposure through special filters, and one by a chemical foggant. No, there will never be a home kit to do K-14 due to the physical demands of the process; removal of rem jet backing, special reversal re-exposure filters; plus the fact that the mixed chemicals have a short shelf life, so they need to be made from scratch within a reasonable time of being used, and cannot sit on a dealers shelf for months or years. Bernie |
#9
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K-14 Process- alternatives?
"Some Dude" wrote in message ... 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? I don't care too much about the pics but would like to at least get a somewhat visible image. Thanks! Cheers, -sd http://www.zoom.sh 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. -- --- Richard Knoppow Los Angeles, CA, USA |
#10
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K-14 Process- alternatives?
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 .................................................. ........................... ............................... "Some Dude" wrote in message ... 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? I don't care too much about the pics but would like to at least get a somewhat visible image. Thanks! Cheers, -sd http://www.zoom.sh |
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