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Strange purple tone on all pictures

NNN634285398704078590
Hi guys,

The problem below appears to be specific to my PC, have not had this problem on previous machines and did not have problem on this monitor when attached to previous machine, so seems likely to be operating system or Graphics card, or who knows what??

Basically all my pictures adopt a purpleish colour cast which is not really there. If you correct it on the computer then the picture looks greenish on every other computer

Really strange bit. I use C1 5.x software for my raw images from a Canon EOS 400D. When the thumbnail first loads into C1 it looks perfect. Then 1 second later it changes to purplish......

It's like the computer is loading the picture and then applying some kind of colour management over the top of it? I am at a loss as to what is causing this, has anyone seen anything like this before?

I am a pretty competent IT guy, and a moderately capable amateur photographer, I don't think I am missing anything obvious, but open to all suggestions...

Ta

Andy
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Comments

4 comments

Date Votes
  • Drew Altdo
    Andy,
    Check you default Monitor Profile.
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  • andywatkins1963
    See the message below from a discussion i have going on the dpreview forums. Mr Malch's suggestion that the initial thumbnail i see which looks perfect is an embedded preview within the raw file sounds perfectly feasible. It is then replaced a second later by a messed up purple image as a result of C1 5.2 rendering the thumbnail itself directly from the raw image.

    this sounds totally plausible to me and explains all of the observed phenomena. There are two unresolved issues...

    1) Why is C1 doing this, have i got something set wrong somewhere?
    2) More importantly how do I stop it. If I can not solve this problem in the next few weeks I am going to chuck C1 and go to a competitor. I REALLY do not want to do this as i love the software but am sick of having all my pictures ruined at the moment....

    Andy






    malch wrote:

    andywatkins1963 wrote:

    When the thumbnail first loads into C1 it looks perfect, then 1 second later it goes purple. Surely that must be something strange C1 is doing rather than the monitor calibration??

    I am not a Canon shooter and not familiar with C1 either.

    However... is it possible that the initial (perfect color) image is rendered from an embedded preview and the subsequent (purple tinged) image from the actual RAW data?

    If so, the issue could lie with your camera settings, or more likely, the C1 default conversion settings.

    Still Andy i just had to change user id's.

    Your suggestion that the initial colour is rendered from an embedded preview and then the purple one is from the raw data rings very true to me. Sounds totally plausible.

    Which tends to indicate it is some kind of C1 problem? No idea how to fix that i can't find anything in the C1 settings that look as though it is applying any colour management.

    Unless there is someone here who knows how to use C1 V5.2 I will have to ask on the C1 forums.

    Andy
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  • C2
    Hi,

    Just guessing here, but is the problem based in the camera itself? If you check the image display on the back of the camera is it also purple? Some skewed WB setting at the source?

    Or maybe a style is being applied, which would explain it coming up "normal" at first then as a style/WB is applied it turns purple? You said you checked color management though, so maybe not.

    CL
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  • NN21711
    The same with Nikon D300 raw's!
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