Colour cast on Canon 90D .CR3 files

Hello,

Let me ask @Marie to have a look, but to make our analysis we need that image from you, @stuck.

Could you, please, upload it to upload.dxo.com under your forum name (instead of the support ticket number) and let me know when ready.

Thank you,
Regards,
Svetlana G.

OK done that but I’m not sure the upload completed correctly. One minute I was at upload.dxo.com and my file was uploading then suddenly I was at www.dxo.com. Is that redirect to the DxO home page normal when a file upload via upload.dxo.com completes?

stuck

… noticeable with skin tones

Yes, DxO doesn’t do a good job with .CR3 and skins tones either but so far I’ve not noticed it as bad on skin as it is in these leaves.

…looks like we are stuck with DPP

I’m just stuck with everything :grin:

stuck

Hello @stuck,

Is the name of your image “IMG_0221.CR3”? If yes, you are right - it’s not uploaded correctly (IMG_0221.CR3.part). Could you, please, re-upload it?

Thank you,
Regards,
Svetlana G.

Yes, that’s the one. I’ve reuploaded it and this time it ended as I expected it should, with a “Your file(s) have been successfully uploaded” message.

I hope it helps.

stuck

Thank you! Got it.

Regards,
Svetlana G.

Hello,

we will look to improve Canon 90D color rendering.
As you noticed, @stuck, you can also use a rendering of other Canon or the “Neutral color, factory tonality”.

Regards,
Marie

Thank you, if you need any more .CR3 files from a 90D, let me know.

stuck

Hello @stuck,

if you can provide us an example with a portrait it would be great.
Photos provided are only for test purpose and won’t be used for other purpose.

Regards,
Marie

Umm, that is harder than it sounds, as it’s made me realise I’ve really got any portraits using my 90D. The nearest I can do is a landscape with a person in the foreground. I’ll see if I can get something else over this weekend.

Meanwhile, I’ve uploaed IMG_209.CR3.

stuck

1 Like

Hello @stuck,

thanks for new image.

We will work on the problem soon.

Regards,
Marie

I’ve been fiddling with another landscape image (that I can up load if you want) that suggest the problem has something to do with the way PL is interpreting the colour temp.

If I open the image and use the DxO Standard preset, the colour temp is set at 6014 K with a tint of 9 and the image has a yellow cast. If I then use the dropper and pick a bit of grey sky with RGB values of 184,186,195 and use that to set the white bal. the RGB values even out to 188, 187, 188 and the image becomes really yellow.

HOWEVER! If I reset to DxO Std preset and then pick a bit of white sky (250,248,245) and use that, again the RGB values balance out (251,251,251) but this time the yellow cast disappears and the colours look good.

Let me know if you want a copy of this image file.

stuck

All images with no preset start with a wb of 5400, tint is now 1. Strange, it seems to be a fixed value.

George

I just opened a picture. In references no preset is added. WB 5400, tint 0.
Added the standard preset and wb 5260 tint 1.
Changed back to no preset and wb is still wb 5260 tint 1???. Any preset I use will give 5260 and 1. The only way to get back the 5400 and 0 is by restarting PL.
Rather strange things happen. It’s not consequent.

George

@Marie Further experimentation and a bit of Googling led me to this post on dpreview:
https://www.dpreview.com/forums/thread/4348994
Given that I have created a dual illuminant .DCP colour profile for a Canon 90D and set that as my default rendering in PL. So far, this has been the best starting point for processing my .CR3 files in PL.

I hope this helps,

stuck

@George I don’t see what your posts have to do with the topic of this thread, which is the very specific problem of PL not rendering .CR3 files from a Canon 90D correctly.

@Marie I’m not sure if you saw my question, asking you if you wanted a copy of another file, since I only quoted part of your last post and did not explicitly mention you using the ‘@’ tag.

stuck

Due to “post moderation” my last two edits are switched.
I think the problem is the wb tool. It starts with a wrong initial value when using “no preset”.
In my case all pictures start with an color temp of 5400 which is the value when I choose “manual”. My wb setting says “as shot” but the value belongs to “manual”. However when I change the setting to whatever and return, then the wb becomes more “as shot”.
Maybe that’s why I felt uncomfortable using “no preset”. I rarely change the color temp.
Why doesn’t “manual” start with a value of “as shot”?

From the manual
The default choice is Original, which corresponds to the white balance of the camera used to shoot the image. Manual or Custom mode isautomatically selected as soon as you use the Color temperature or Tint sliders
I suppose “Original” means “As Shot”.

George

@stuck,

I’m of course interested in more files for testing.

Regards,
Marie

@Marie OK, I’ve uploaded IMG_0287.CR3. In that image, applying DxO’s standard preset and generic renderings:

  1. If you set the WB using the dropper on either the strip of white sky on the left hand side OR you zoom right in on the white hawthorn blossom on the right hand side, the greens are much less yellow and look about right.

  2. If you set the WB on the darkest grey bit of the sky, along the top, the greens are much too yellow.

Alternatively, if I still apply standard preset but use the dual illuminant DCP file I created as described above for the rendering and:
a) increase ‘protect saturated colours’ to 100
b) leave the WB ‘as shot’
then again the greens look about right.

NB It only seems to be greens that are not rendered correctly. For example, I have an image of a white swan sitting on its nest, with no obvious greens anywhere in the image and that one looks fine using the DxO standard preset plus generic renderings.

stuck

Hello @stuck,

thanks for the image and details.
We will look into it.

Regard,
Marie