P: Provide a Linear Camera Calibration Profile so we don't add unwanted contrast

GOOD! :d

Done at both YouTube videos! Let's see how he comments!

THX! 😄 hope you did comment that on is videos if he dont know that! 🙂

I took a quick look at the two videos and agree the "Default Develop Settings" changes made in LR 7.3 (Adobe Color, Higher Sharpening) may not appeal to experienced users. This was done because many novice and first-time LR users complained LR was "ruining" their image files when they saw the camera embedded preview change in the Develop module to the lower contrast and color saturation  "default settings." I use my own custom "Default Develop Settings" so this has no affect to my LR settings. You can do likewise by resetting an image file, apply YOUR desired camera profile and settings, hold the ALT key and click on the Develop module Reset button, and then click on 'Update to Current Settings.' You'll need to do this for each camera model you use.

Andy Astbury's scathing review of LR 7.3 update completely overlooked the new Adobe Neutral camera profile and doesn't even mention it! There's no need to use Camera Neutral and apply a PV2010 Zeroed Tone Curve to get a "iinear" tone curve. As already explained the new Adobe Neutral profile uses a linear tone curve that produces virtually the same toning. In fact Adobe Neutral provides more highlight detail than Camera Neutral with a PV2010 Zeroed Tone Curve. Enjoy!

okay i dident know that! a did just fallow this https://www.youtube.com/watch?v=gHPcpF5SBws&t=10s and this https://www.youtube.com/watch?v=Zgg7G053fP4&t=5s  🙂

The new  Adobe Neutral XMP camera profile already contains a Tone Curve simlar to the one obtained as you describe above. Using that Tone Curve with Adobe Neutral is the same as applying it twice. So it is no longer linear and effectively a negative contrast curve. To see this open the Adobe Neutral.xmp camera profile in any text editor and scroll down to the Tone Curve area.

<crs:ToneCurvePV2012>
    <rdf:Seq>
     <rdf:li>0, 0</rdf:li>
     <rdf:li>16, 24</rdf:li>
     <rdf:li>64, 72</rdf:li>
     <rdf:li>128, 128</rdf:li>
     <rdf:li>192, 176</rdf:li>
     <rdf:li>244, 234</rdf:li>
     <rdf:li>255, 255</rdf:li>
Adobe Neutral by itself with a linear Tone Curve setting should be just that.

so you add contrst to your imges not lightroom whitout you knowing.. 😉

you go to Process Version 2 set everthing to zero and set the tone curve to liner then you go back to Process Version4 and you curve should look like in the picture then apply Adobe Neutral then you get the what the raw file Should look like without any added stuff.. 🙂  

The new Adobe Raw profiles are only available using Process Version 4 with exception of Adobe Standard. From the screenshots I posted the Adobe Neutral profile provides the same contrast rendering as Adobe Standard with a linear tone curve. There's no benefit using Process Version 2 that I can see to reduce contrast even with a linear camera profile. Adobe is not likely to add new camera profiles that are compatible with ANY process version other than Version 4. If the Adobe Neutral profile isn't providing low enough contrast please provide details on your objectives and type of image files you are processing. Perhaps there are other solutions.

Just curious, why do you need it so flat?