Different color temperatures reported with three different programs ?

Discussion in 'Digital Discussion & Q&A' started by Don Kondra, Jul 4, 2020.

  1. Don Kondra

    Don Kondra Been spending a lot of time on here!

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    This one has me scratching my head :)

    Capture One 10 and Adobe Elements 14 show 6150k and DXO Optics Pro 11 says 5400k..

    What the heck ?

    This image, SOOC raw resized to 1000 wide.

    Raw reside SOOC.jpg

    Cheers, Don


     
  2. Space Face

    Space Face Been spending a lot of time on here!

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    I dunno how that works.
     
  3. Ysarex

    Ysarex Been spending a lot of time on here!

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    Wow! You got two different programs to report the same color temp! That's really unusual. I just opened the same raw file in Photoshop temp = 3200K, Capture One temp = 4608K, and DXO PL3 temp = 3220 and my faith in the status quo is restored.

    All of the color temp values you encounter both on your cameras and in the various processing apps are shall we say of the ball park variety and it's a big ball park. My expectation of the status quo is: open the same raw file in 10 different processing apps and get 10 different color temp values none of them necessarily very close to what was actually there or what was set on the camera. Continuing with that same photo I just checked, Affinity Photo temp = 2544K, SilkyPix Pro9 temp = 2284K, ACDSee temp = 3211K, DPP4 temp = 3000K, RawTherapee temp = 5137K. Why? It's always been that way so I got used to it a long time go and never chased after a better explanation.

    Joe
     
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  4. Mike Drone

    Mike Drone TPF Supporters Supporting Member

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    Would a monitor color correction tool give a more consistent temperature or are they only for printers?
     
  5. 480sparky

    480sparky Chief Free Electron Relocator Supporting Member

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    Are they set to auto-correct the WB and display the changed WB?
     
  6. Ysarex

    Ysarex Been spending a lot of time on here!

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    In the case of my 8 different apps reporting 8 different temp values no auto correction applied and no WB change applied. The values I reported were the values the apps reported default opening the raw file -- absolutely nothing done. I assume Don reported the same, but maybe not.

    Joe
     
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  7. 480sparky

    480sparky Chief Free Electron Relocator Supporting Member

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    If the image was recorded as a raw file, there would be no WB applied to it. It would be a bit of info stored in the file, and applied by the software.
     
  8. Derrel

    Derrel Mr. Rain Cloud

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    Nikon raw files have an encrypted white balance.
     
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  9. Ysarex

    Ysarex Been spending a lot of time on here!

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    Correct that a raw file has no WB applied. The camera however fills in a WB field in the EXIF data (possibly encrypted as Derrel noted). The raw processing apps list a value for WB as soon as the file is opened and typically label that value "as shot" which is what Adobe calls it. "As shot" sounds like they mean the value stored by the camera. Where/how they're actually getting that value we're not entirely sure. The assumption is that they read it from the EXIF data stored by the camera. If that were the case wouldn't they all read it the same? And if Nikon's is encrypted then where's that value coming from. Nearly all the apps fill in that value upon opening the file.

    Joe
     
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  10. Don Kondra

    Don Kondra Been spending a lot of time on here!

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    Thanks Everyone, it now makes perfect sense :)

    One thing I haven't tried yet is opening it with a Nikon program...

    I must have one somewhere, he, he...

    Cheers, Don
     
  11. Derrel

    Derrel Mr. Rain Cloud

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    Nikon Capture can read the encrypted WB..Adobe products are often off by 700-1, 000 degrees Kelvin.
     
    Last edited: Jul 4, 2020
  12. Don Kondra

    Don Kondra Been spending a lot of time on here!

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    Nikon Capture NX-D is a free download.

    Apparently I had an older version so I updated it :)

    Hmmmm, says 6391k but if I click on recorded settings/value/flash it shows 5400k.

    So changing it to a closer value is easy but I'm still not sure what the WB value is.

    Simple, huh ?

    Cheers, Don
     
    Last edited: Jul 5, 2020

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