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Pink Overlay

NN635856709288727467UL
I am new to Capture One, I mean very new.

When clicking on any adjustment sliders I get a pink overlay in the highlights - I do not mean exposure warning, I know this can be switched on/off in the View menu.

Example: if I use Auto White Balance then click on the "Kelvin or Tint" to compare before and after I get this pink mask/overlay in the highlights.

I have reset everything and cannot get rid of it.?
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Comments

8 comments

Date Votes
  • NN635856709288727467UL
    OK I downloaded 9.1.1 installed and the Pink Overlay issue has gone !
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  • NN635856709288727467UL
    Well that did not last long - its now back, I mean this pink overlay/mask.

    Can anyone help?
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  • SFA
    Canon files?
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  • NN635856709288727467UL
    Yes Canon files???
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  • SFA
    I get the same thing, sometimes, with 600D file, once in a while with G11 files and very occasionally with S90 files.

    Never with my 1D3 files.

    With the 600D the effect is usually very obvious with extremely blown white area like clouds.

    However I can be using multi shot mode with constant settings in the camera and have a first image which is unaffected and the next one fraction of a second later which has pink areas.

    The Histogram will usually show the nature of the problem with some sort of relative spike in the red channel at the white end.

    WB and Levels adjustments seem to balance things out. If you tick the right options Auto Adjust might work. If not set the levels preference to R G B channels separately and use the Auto Levels along with WB and Exposure adjustments to get somewhere close.

    I have never really worked out what the source of the problem is but it is not, in my experience, something that happens to a majority of images and does not seem to apply to all camera bodies.

    The pink effect can be very subtle or rather obvious depending upon the nature of the exposure captured.


    BTW, one might suspect that the camera profile is the source of the anomaly but even setting the profile to Linear shows the same effect.

    Levels adjustment, by colour channel once Exposure and WB have been checked, seems to be the quickest approach to eliminating the anomaly when it occurs.

    HTH.


    Grant
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  • NN635856709288727467UL
    Having used Capture One on another computer (Mac Book Pro) last night it seems the issue my not Canon related. I found this on the forum - scroll down past my earlier post.

    search.php

    This morning I switched off the auto Hardware Acceleration (Use OpenCL for) Display: and the pink overlay has gone.

    The Processing is still on Auto.

    I will log a call with support for further info.
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  • SFA
    Maybe.

    However the anomaly is something I have seen in earlier versions and without using OpenCL.

    Perhaps there are or have been multiple causes?


    Grant
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  • NN635856709288727467UL
    It is a graphics card issue. You can check Phase One website to see if your card is supported.
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