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"No Proof Profile" in the menu "View/Proof Profile"

AP
Hi,

I could not find any clear answer on the question :

What is the behaviour of Capture One when I select "No Proof Profile" in the menu "View/Proof Profile"? In what case I can use this value? In what case I do not have to use it ?

Thanks for any information.

A. Philippe
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Comments

13 comments

Date Votes
  • Ian Wilson
    Moderator
    Top Commenter
    Does this article shed any light on the subject?



    Ian
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  • AP
    Hi,

    Thanks for the link.

    But my question is more precise and specific. What CO makes when I choose "No Proof Profile" in the menu "View/Proof Profile" (the last choice at the bottom) ? What is CO doing in this case according corlor management ?

    What are the conditions of display ?

    What color space is used for Proof profile, if there is one ? The internal working space ? From my point of view, there must be one.

    Thanks
    A. Philippe
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  • Ian Wilson
    Moderator
    Top Commenter
    I'm sure there is an answer, but I don't know it! Hopefully someone will be along soon who can tell you.

    Ian
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  • dreckly
    [quote="Ian3" wrote:
    I'm sure there is an answer, but I don't know it! Hopefully someone will be along soon who can tell you.Ian

    Not sure if I've quite got what it takes to tell you but, at least, I am here and responding.
    Been trawling the forum responses and associated (brilliantly helpful) information URLs.
    I haven't yet managed to output a single satisfactory image from C1 but I live in hope:-)

    [quote="AP" wrote:
    What color space is used for Proof profile, if there is one ? The internal working space ?

    I didn't find one specifically referenced either. Just that the Viewer's colour space utilised internally appears to be in excess of requirements. The Proof profile is allied to the way the Viewer (the central display area) shows the image. If you tick one of the View/Proof Profile's CMYK (newspaper) near the bottom you get to see the current image appropriately downgraded whereas any resulting out is unchanged by that apparent quality shift.

    My display panel has its own calibration device so I can just work as-is on-screen. Trying the "No Proof Profile" setting in that situation appears to do or undo nothing. Another was of looking at the situation is to then untick the "Show All box" which results in the "No Profile" setting being adopted by the "Use Recipe" setting! So, another way of saying the same thing.

    The Proof Profile only helps you to align the way you see your work on-screen with how you later have it output?
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  • AP
    Hi,

    I agree with all that.

    But every parameter has its reason for being. There must bee a change when the parameter change.

    A screenshot with "No Proof Profile". Warning is set to 255

    http://public.alpph.com/CI/Ns_sans%20profil.jpg

    A screenshot with a very big profil from Iridient.

    http://public.alpph.com/CI/Ns_IridientLStar.jpg

    How to you explain all that?

    Thanks

    A. Philippe
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  • dreckly
    [quote="AP" wrote:
    How to you explain all that?


    Control-E does the out of gamut or over or under colouring. Put that Profile thing to a newspaper profile, notice the greyness AND the lack of out of gamut warnings. So, it helps you see that you might not have to edit or change?
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  • AP
    Hi,

    The question is : Why is there a difference ? How to explain the first screenshot?

    I don't need help for using CO. I need a precise response on the initial question.

    A. Philippe
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  • dreckly
    [quote="AP" wrote:
    The question is : Why is there a difference ?

    The newly selected profile reduces the extent of the out-of-gamut warning?

    [quote="AP" wrote:
    How to explain the first screenshot?

    It shows the extent of the out-of-gamut?

    [quote="AP" wrote:
    I don't need help for using CO. I need a precise response on the initial question.

    The initial question:
    [quote="AP" wrote:
    "What is the behaviour of Capture One when I select "No Proof Profile" in the menu "View/Proof Profile"?

    The behaviour of Capture One when you select "No Proof Profile" in the menu "View/Proof Profile" is that C1 does not in itself change the way the image is being shown. It's all up to the operating system's incumbent colour management. That would be my understanding - as a user of the product to another user - I don't have access to any technical detail, sorry.
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  • Photocor
    [quote="AP" wrote:
    Hi,

    I agree with all that.

    But every parameter has its reason for being. There must bee a change when the parameter change.

    A screenshot with "No Proof Profile". Warning is set to 255
    ............
    A screenshot with a very big profil from Iridient.
    ...........
    How to you explain all that?

    Thanks

    A. Philippe


    Hello,
    It is simple: gamuts can't be compared only with their volume. Each color curves are different between each space colors. Have a look for example between Irident or ProstarRGB. Then consequences are that out of range will appears at different levels regarding each colors. Have a look of this with a tool like DocBees Profile manager (German and free)(and I think that the french website you asked the question is not the good place: too much mistakes). It is one of the reason why it is very important to work your raw file regarding the destination of use.
    Regards
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  • NN637082030036333009UL
    [quote="Photocor" wrote:

    Hello,
    It is simple: gamuts can't be compared only with their volume. Each color curves are different between each space colors. Have a look for example between Irident or ProstarRGB. Then consequences are that out of range will appears at different levels regarding each colors. Have a look of this with a tool like DocBees Profile manager (German and free)(and I think that the french website you asked the question is not the good place: too much mistakes). It is one of the reason why it is very important to work your raw file regarding the destination of use.
    Regards


    Hi,

    Thanks for the information. I know all that.

    The initial question remains: what makes exactly CO when I ask him for " No Proof Profile" in the menu "View/Proof Profile"?

    Thanks
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  • dreckly
    [quote="ALPPH" wrote:
    The initial question remains: what makes exactly CO when I ask him for " No Proof Profile" in the menu "View/Proof Profile"?

    The meaning of your question is not clear (language):~/ Is this your question... "What is changed in the displayed image when I select 'No Proof Profile' in the 'View/Proof Profile' menu'?" If it isn't perhaps you could re-phrase your question more clearly or exactly?
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  • AP
    Hi,

    Agree, English is not my mother language. I would rephrase to :

    What is changed in the displayed image when I select 'No Proof Profile' in the 'View/Proof Profile' menu instead selecting a profile (RGB, Printer, ...)'?

    I hope this is more clear.

    Thanks
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  • Photocor
    [quote="AP" wrote:
    Hi,

    Agree, English is not my mother language.


    Me too 🤭 .
    [quote="AP" wrote:

    Hi,I would rephrase to :

    What is changed in the displayed image when I select 'No Proof Profile' in the 'View/Proof Profile' menu instead selecting a profile (RGB, Printer, ...)'?

    I hope this is more clear.

    Thanks

    Without proof profile in View/Proof Profile, I think you display the picture with the input profile (with the limitation due to your screen).
    And regarding the question in relation with your captures I maintain what I wrote.

    You can read the answer in french .
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