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  1. #1
    Philippe Berger's Avatar
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    Filter for separation Carbon TRi Color

    HI,

    What is the best filters (Lee Filters or other) for colore separation RVB for Carbon Tri Color with a camera 5x7 inches with Ilford HP5+400 sheet 5x7 inches
    What is the number reference of Filters for the Separation Color Red, Green and Blue
    Thank you for your help and experience
    Best all

  2. #2

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    Hello Philippe,

    I have more or less the same problem. I was looking into Lee filters. I think the Tricolour series is made for color separation (http://www.leefilters.com/index.php/...gory/tricolour ). Also wratten filters (29/61/47 or 25/58/47B) are often proposed. But it will take some time to wait for them on ebay….

    My idea is to use my enlarger and generate separation of a c41 negative on normal panchromatic film with the red/green/blue filters. With a reversal process I want to get negatives again. I’m using this method at the moment to enlarge monochrome negatives for carbon print.

    Since I would like to do four color carbon print I wonder how to generate the black separation.

    Chris

  3. #3
    CMB
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    The standard tri-color set is #25 (Red filter for Cyan Printer), #58 (Green Filter for Magenta Printer), and #47B (Blue Filter for Yellow Printer). For four color work,
    #8 (Yellow Filter for Black Printer), along with 29/61/47 is recommended.

    Charles

  4. #4
    Philippe Berger's Avatar
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    For Chris, thank you for the link to the Lee Filter

    For Charles,
    Thank you for your informations but sorry my english is bad and i translate with google.
    I don't understand you say " along with 29/61/47 is recommended "
    Are you explain to me
    Thank you very mutch

  5. #5
    Philippe Berger's Avatar
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    Charles,
    29/61/67. It is red filter 29 / Green 61 / Blue 47
    Is it corret my translate.
    Do you prefer this filters for a best deparation for the Carbon TRi color but which company sells its filters ?
    Thank you

  6. #6

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    Thanks Charles for the information.

    For the questions of Philippe:

    Charles recommends 29/61/47 together with 8 (yellow) for four color printing (cyan, magenta, yellow, key/black).

    For three color printing (cyan, magenta, yellow) 25/58/47B is the standard set. By the way the Lee tricolour set is also labeled by 25/58/47B. So I guess they are simply a copy of the original wratten standard tricolor set.

  7. #7
    Philippe Berger's Avatar
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    If Charles recommends 29/61/47, i prefer using directly but what is the reference of Lee Filter or other for the 29/61/47 recommanded by Charles, the Carbon Master of the Carbon Tri Color

  8. #8
    CMB
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    These were only general filter recommendations. Direct separations (in camera exposures) or separations from TX's and/or color negatives each have specific filter requirements depending on film type and lighting conditions. See a Wratten Filter Guide such as http://www.karmalimbo.com/aro/pics/f...%20filters.pdf
    for detailed info.

    Charles

  9. #9
    Philippe Berger's Avatar
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    Thank you Charles for this informations

    Best regards of Belgium



 

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