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Thread: Does a book exist for making color separation negs?

  1. #1

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    Does a book exist for making color separation negs?

    Even something smaller than a book but something detailed with clear explanations. I was wanting to read about the process. I know very little and tend to shy away from the computer processing, But it looks like I will need to go that way sooner or later. Because of this I might as well look into learning something I find interesting.

  2. #2
    IanG's Avatar
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    Re: Does a book exist for making color separation negs?

    You might try getting a copy of D A Spencer's "Colour Photography in practice it's a 1940's book but excellent. Spencer was a Director of Kodak Ltd.

    Ian

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    Re: Does a book exist for making color separation negs?

    Quote Originally Posted by IanG View Post
    You might try getting a copy of D A Spencer's "Colour Photography in practice it's a 1940's book but excellent. Spencer was a Director of Kodak Ltd.

    Ian
    The 3rd edition of D. A. Spencer's Colour Photography in Practice has a good section on making separation negatives, and also some interesting chapters on the color assembly processes of the 1930s and 1940s. There are also many standard references dedicated only to color separations, such as Color Separation Photography by Erwin Jaffe, Edward Brody, Frank Preucil and Jack W. White. All of this applies to analog photograpy.

    In modern photography color separation photography is primarily practiced by alternative photographers who make two and three color gum prints, or some variation such as gum over cyanotype, palladium over cyanotype, etc, and sometimes color carbon. Typically these workers create the separations in Photoshop, then output to digital negatives with inkjet printers, and the negatives may be CMY or CMYK.

    It is of course still perfectly practical to make three color (tri-color) separations on Black and White film through Red, Green and Blue filters, and you can merge the layers in Photoshop to make a full color image, or print them directly with a process like three-color gum. With a subject that will not move while you expose the three shots three-color separation work can give very high quality results, as good or better than color negative or color transparency film.

    Sandy
    For discussion and information about carbon transfer please visit the carbon group at groups.io
    [url]https://groups.io/g/carbon

  4. #4
    Drew Wiley
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    Re: Does a book exist for making color separation negs?

    There are all kinds of old books giving theory. Nothing is in print that I am aware of that addresses current films etc. But separations really have to be matched to your specific output media, and there are certain websites dedicated to some revived processes. Sandy has just chimed in, and he'd be a good source for hybrid
    techniques related to carbon printing. Jim Browning maintains a site dedicated to dye transfer printing. And I know how to make separations totally analog in the darkroom using modern films, which requires quite a bit of practice and testing. What exactly are you interested in doing?

  5. #5

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    Re: Does a book exist for making color separation negs?

    Could be something in here. Although its more about masking.
    http://thelargeformatblog.com/2013/0...ing-andy-cross
    Cheers Shane

  6. #6

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    Re: Does a book exist for making color separation negs?

    There's a chap in France called Philippe Berger doing some tri-colour carbons:
    http://www.philippeberger.net/fr/accueil.html
    http://www.galerie-photo.com/philipp...iochromie.html
    He has a couple of threads at APUG about it.

  7. #7

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    Re: Does a book exist for making color separation negs?

    Choice of separation RGB filters: Wratten #25 - #47 - #58

    More here on Henri Gaud's tricolor blog
    http://trichromie.free.fr/trichromie...2010/03/06/LEE

    http://trichromie.free.fr/trichromie/index.php?

    other info on Flickr
    https://www.flickr.com/groups/92087504@N00/discuss/

  8. #8
    Drew Wiley
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    Re: Does a book exist for making color separation negs?

    A slower to expose (denser) but more precise set would be 29, 47B, and 58.

  9. #9

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    Re: Does a book exist for making color separation negs?

    Drew,

    I made tri-color carbon and carbro prints in the 1980s with in-camera separations on B&W film. I had more success with carbro since making the bromide allowed more image control than trying to print directly with the negatives. Working in color with digital separations would allow for a lot more control, but even with this control three-color carbon is a very daunting process, and there are only three or four persons in the world currently working who have truly mastered the process.

    One of those persons is Tod Gangler of Seattle. Tod recently had an exhibition of color carbon at the Nordic Heritage Museum in Seattle. His subject was Ballard, and he chose to work at night, with long time exposures. For this body of work he used one of the modern folding 6X7 cameras made by Fuji, the GF667. Watch the interesting video of the project and his work at https://www.youtube.com/watch?v=VllqsEbOJyA


    Sandy
    For discussion and information about carbon transfer please visit the carbon group at groups.io
    [url]https://groups.io/g/carbon

  10. #10
    Drew Wiley
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    Re: Does a book exist for making color separation negs?

    Andy down under, mentioned a bit above, has an interesting perspective on all this. He's an optical engineer who teaches digital photography academically, but does quite a bit of his personal work old-school darkroom, in both dye transfer and color carbon, and previously Ciba as well. But I kinda doubt your statistics,
    Sandy. I'm not in a position to keep track, but as little as fifteen years ago, there were about six people very proficient in color carbon within a one-hour drive radius of where I am right now, and one of them was expert in color carbro too. Maybe two of those people are still alive now. I don't know. Perhaps the most
    skilled person nobody ever heard of. He didn't exhibit. But I saw his work -all processed in an apartment bathtub! Guess he bathed in the sink, wouldn't surprise
    me.

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