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How to turn off the secret sauce.

Grant Kernan
I am doing copy work with the D800.

If I shoot a Colorchecker SG chart and set the exposure to 243 RGB values on the white patch then everything above the 243 value seems to be gone.

I embed the ICC profile. I export to a tiff. I open the image up in PS. I use the embedded profile. I then assign a profile by first toggling on and off the don't color manage this document. Nothing changes but the high tones are still missing.

Then I make an IN Camera colour profile using the SG Chart.

When I embed that profile then all the high tints magically appear.

I am not fond of this workflow as I don't want to double profile...I suspect that even when I disregard the Generic D800 profile that the secret sauce is still flavouring the image. I do not like the ramped up contrast and the colour casts.

Is there a work around?????????
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  • Paul Steunebrink
    Not clear what your workflow is, what you want to achieve, what problem you encounter. I am familiar with the Colorchecker SG, by the way.

    Actually you already lost me after the first line (If I shoot a Colorchecker SG chart and set the exposure to 243 RGB values on the white patch then everything above the 243 value seems to be gone).
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  • Grant Kernan
    If I set and control my exposure and white balance to 243 RGB values using the SG white patch it should be perfectly exposed.

    This is exactly what I do with my Betterlight scanning back. I make a colour profile using the SG colorchecker.
    Those tones above 243 still show detail.

    When I use the D800, and when I expose by setting the exposure to white patch 243, the painting image looks to be overexposed.
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  • sizzlingbadger
    Could it be the film curve being applied in CO? If so try the linear curve to see if that helps.
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  • Grant Kernan
    I think this is part of it.
    I also think what Nikon is doing under the hood is contributing to the problem.
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  • Grant Kernan
    Yes I am getting the same behaviour with Nikon's NX-D.
    Also with Adobe Raw
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  • sizzlingbadger
    Could Active D Lighting be the issue ? you can turn it off in camera. It does effect raw file exposure not just jpg's.
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  • Grant Kernan
    Thank you sizzlingbadger,
    I wish it were that easy.
    I don't have Active D Lighting on...in any of the 4 Shooting banks.

    I just think that cameras are not made explicitly for fine art repro. They are made to make pretty pictures of grass, mountains, blue sky and faces....

    I have found that embedding the output ICC does allow me to remove it and replace it with my own camera profile.

    This has to happen outside of CO.

    I cannot merely import and use the new In Camera profile within CO Because all the settings - conditions used to first make the profile must remain the same.

    Colormetric response and subtle gradual tonality greatly improves with the new ICC profile.
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  • Grant Kernan
    I would like to see the option of not applying a profile right with in CO8. So one could simply select 'None'
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  • Grant Kernan
    I would like to see the option of not applying a profile right with in CO8. So one could simply select 'None'
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  • pixmania
    I am making profiles for art report / cultural heritage work.
    try in profiles / effect / no color correction /

    be sure you are using / camera RGB / for the output profile ( at least for the tiff to create a profile.)

    I too do not understand your work flow, but share you interest in true color fidelity.

    Does anyone know where the stock camera profiles are kept in / for C1? I know where my custom files are.

    Kevin
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  • dee jjjaaaa
    [quote="NN635592745048099976UL" wrote:

    Does anyone know where the stock camera profiles are kept in / for C1? I know where my custom files are.

    Kevin


    for example for dSLRs on PC/Win (yes, not Mac - you can check similar locations in OSX) C1 (v8) picks profiles from :


    C:\Users\<user>\AppData\Local\CaptureOne\Color Profiles

    C:\Windows\System32\spool\drivers\color

    C:\Program Files\Phase One\Capture One 8\Color Profiles\DSLR
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  • Paul Steunebrink
    [quote="NN635592745048099976UL" wrote:
    ...
    Does anyone know where the stock camera profiles are kept in / for C1? I know where my custom files are.

    /Applications/Capture One/Contents/Frameworks/AppCore.framework/Versions/A/Resources/Profiles/Input

    Note that in case you like to add any profile, it is better not to store them here, but in the user's profile folder because any program update will remove the change in the program folder. But I assume you already know that as you know where your custom profiles are.
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