Printing color in a darkroom can be achieved using either “white light” or “tricolor” means. The color paper and enlarger (exposing) light system are “balanced” when they are not introducing color balance shifts. As balance is achieved, the print color is determined by the color negative.
General pathways to color photography are:
Assembly — the image is built a layer at a time. These are processes such as the pigment processes of Carbon, or Gum. Also, the dye transfer process is an assembly process.
Integral — the way of most color printing. The manufacturer provides the pre-made emulsion system in which all the layers are included at coating time. These are the color films such as Ektar, or Provia. The positive, the print portion of the CN method, C-41 –> RA4 is made by Fujifilm. Most darkroom printers use one of the Fuji papers.
For the return readers, this update covering Carbro and Dye Transfer [Pan Matrix]
telling tales: to children about the evil rich chinese who fails because…
Have you heard the story about the rich Chinese who bought Technicolor, but couldn’t get it to work. If you haven’t heard it, good , it isn’t true. It’s based upon a prejudice told by a person Who is neither wealthy nor able.
A tale told often by the fool on the forum.
from an idler responding with waves and wishes; his comment, repeated many times has never been correct, and is never corrected. This lack of caring about accuracy is easy to pass off as knowledge among those asking questions about setting their camera ISO, or failing to know that pushing and pulling are terms from developing (movie lines introduced the terms). Even the long time keepers of those places seem to fail at understanding the exposure relationship differences between Negative and Slide processes. Furthering demonstrating the lack of experience based knowledge, consider that almost anyone with a drawer filled with negatives would realize that a sheet of 8×10 paper is covered by 4 (4x5s), or 1 roll of 120, or 135.
[The remaining Technicolor cameras, along with huge quantities of the remaining dyes, were allegedly sold to a Chinese entrepreneur, who thought there was a market for it in relation to the colorful big budget Bollywood films of India. But that would require rekindling an entire lost culture and industry of specialized craft at great expense, which proved unrealistic.]
Before providing a boast post, check– then, please proceed to boast of your skills.
[& if you don’t have a library, check online — avoid the forums]
Maybe this will help:
Technicolor: The British line was shut down in 1978 and sold to Beijing Film and Video Lab which shipped the equipment to China. A great many films from China and Hong Kong were made in the Technicolor dye transfer process,[**] including Zhang Yimou’sJu Dou (1990) and even one American film, Space Avenger (1989), directed by Richard W. Haines. The Beijing line was shut down in 1993.
The “revived” Technicolor Dye Transfer process had several patents:
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