P: Support for Canon .CR3 Camera-matching Profiles

*jumper42 well I understand your need and I'm in the same position, but here the name of the topic is : Camera Raw/Lightroom Classic: Support for .CR3 Camera-matching Profiles.

If you want to make your own colors, @andrew_rodney shared some very well made documents that explain how to process 🙂

At least I’m just talking about any options we might have to get a decent camera profile

Decent = subjective. 

Some film photographers loved Agfachrome. I thought it looked awful. Agfa sold a lot of it. It wasn't producing colors of reality of the scene. Neither did Fujichrome or Kodachrome or Ektachrome (fill in the flavor). Metameric errors existed then too. 

And we had filter packs (profiles) for film processing and balance. ALL subjective. 

If you really love the proprietary color from your camera JPEGs, maybe you should consider them; baked like all those old films baked a proprietary color appearance. 

@andrew_rodney We do not understand each other. I'll try to make it more clear. We are not talking about theoretical color conception here. From your point of view, do you consider than a photo developed with a custom ICC made from a color checker will match in terms of colors the same photo processed by canon ? If yes, please explain why. If not, we then agree to say a color checker is not the correct answer to the people here that want to have canon's colors in Lightroom. Right ?

@Etienne_E_Photos I don’t think we are all comparing canon color profiles to color fidelity. At least I’m just talking about any options we might have to get a decent camera profile other than the Adobe options for Lightroom and camera raw for cameras not currently supported like the mirrorless R5/6 with CR3 files. I completely get they aren’t the same as canon color profiles. I was just making the point that purely for myself and my own workflow, they don’t work for me and what I’m doing and neither do the Adobe profiles. I’ve actually experienced canon color being pretty accurate and almost perfect especially in open shade. I don’t see full alteration as you are talking about in all situations. Regardless, I use canon bc I like canon color, especially on skin. In a studio and in many other situations, I find their skin color the closest to real life of any other camera brand. 

We are comparing two colors profiles, which colors are made with different aims for different results

The colorimetric facts: This has absolutely nothing to do with colors of the scene or reality; everything discussed is output referred. This is all subjective and often proprietary (again, in the case of any JPEG conversion done in-camera). 

Suggesting a profile alone produces colorimetric scene matching utterly fails to grasp what these profiles do, how they work and basic colorimetry. 

"The colorfidelity profiles are made to match colors to the reality"

No, they are not and cannot be. 

Start by reading up on metameric errors; camera and observer. Then we can get into exactly what the DCP profiles do and in the case of the above, cannot. 

@andrew_rodney  I know this very well and you already shared your documents many times here but this is not the point of the discussion. We are comparing two colors profiles, which colors are made with different aims for different results. This is why your suggestion of using a color checker isn't a correct answer to the people that want to have Canon-matching colors : they are not made in this optic. 

The colorfidelity profiles are made to match colors to the reality...

As to the idea of 'matching to reality', the ICC has an introduction to this for photographers by photographers:

http://www.color.org/ICC_white_paper_20_Digital_photography_color_management_basics.pdf

No, nothing coming out of ACR/LR is scene referred without a lot of special handling!

http://www.color.org/scene-referred.xalter

And it would look awful on screen! 

As said before you are comparing things that we can't compare. The colorfidelity profiles are made to match colors to the reality, even if it can be improve in some ways. Canon's colors are fancy and change depending on the scene you choose. They do not match the reality. So please, do not compare colorfidelity's profiles and Canon's. 

Same with color checkers : if you use one, the result will not behave like Canon's colors. 

*rob_pennoyer Whoever suggested you shoot a ColorChecker for each scene is wrong. 

DCP profiles are WB agnostic by design but not by illuminant (Daylight, Tungsten, Fluorescent etc). You only need ONE Daylight DCP profile for ALL shooting under that illuminant no matter the other conditions and you are expected to WB to taste with all DCP profiles. Which is vastly different than shooting a JPEG where you end up with a rendering based upon proprietary camera processing. If you love the JPEGs, shoot JPEGs. 

If you want to build custom DCP profiles  (and edit them to mimic a rendering), the facts are, you need one per illuminant. Not one for each scene. 

*jumper42 Agreed, the ColorFidelity profiles don't look like JPGs at all.  Camera matching profiles are a big part of my Lightroom workflow, and it's very frustrating not to have any concrete answer as to when we will or why we won't get these. 

People suggesting to shoot a colorchecker in each scene aren't thinking about jobs where you're on the move through constantly changing lighting.