Standardization of Color Temp Adjustments in Adobe CC

No, as I have stated all along "Standardization" of terms between the apps. As an example what almost everyone who has ever used a computer in the past 30+ years has encountered an Adobe Acrobat file. In the early years of the Acrobat file the user became very familiar with the icon and what to expect when opening the file. However, in the past few years others developed apps to create PDF files. This has caused some unexpected results. The PDF files are like a box of chocolates and you don't know what you are going to get.

You say that you didn't misunderstand, but the content of your thread seems to have entirely stemmed from misunderstandings. It also appears that many other contributors have kindly and thoroughly explained it to you...

It makes sense, to some, the data is rendered, not raw.

Edit: I understand  that you're looking for consistency, regardless of the source of the data. I'm personally happy with things being contextual based on the data source.

Yes, which is what we've been saying all along. It's not that it isn't technically possible. It's that it doesn't make any sense.

Adobe could have programmed the reported slider values to display the same with rendered images as with raw sensor images, but they didn't; they used a different scale. They could have left it as is, but they didn't. This would appear to indicate a reason for this departure between raw sensor data and rendered data.

I have no misunderstanding. The slider shows temperature. The reference point is a deviation from the daylight temperature of 5600 kelvin +/-. Really need to learn the values you are looking at. 

@westdr1dw  Did you import the exact same RAW file into ACR?
Or are you referring to opening a JPEG or similar file in ACR and adjusting +100, -100?

If you imported a RAW file, then the values you mentioned—5600K, 3200K, 6300K, etc.—should appear exactly as expected.

However, if it’s not a RAW file, then of course, those values won’t apply in the same way. (This is likely the same for LrC as well—try importing a JPEG file into LrC and see for yourself.)

It's not a raw file.

It looks like other users have already explained this to you, but you seem to have a major misunderstanding about it.

This sounds like an argument to take up with Adobe engineers? If you call it one name in one of the apps, then maintain consistency. Without looking I think ACR refers to it as color temp. If this is the case then U/M should be Kelvin. Any idea on the +/- 100 value is measuring? There should be standardization across the photography world. Especially in Adobe products where they handle several different formats. This is in no way to say Adobe is wrong. 

And also - still - that the Kelvin value is somehow measured and absolute. It is not measured. It's just a compensation towards visually neutral, set in increments that correspond to the Kelvin scale.

Have you noticed that the Kelvin value you get in ACR/Lr is not the same as the camera reports? If you tried a third raw processor, you'd get yet a third value. And so on. They will all be different! That's because it doesn't reflect actual Kelvin, it's just a compensation, and since they are all different processing engines, they will compensate by different amounts.

Now, I assume it would be possible to build a colorimeter sensor into a camera. But it's not done because it's a lot of extra cost for no benefit. The current system works perfectly well.

Also, in Photoshop, consistency and predictability is king. Again, it would be possible to report the ACR/Lr number to Photoshop. But what if it's not a photograph at all, but a digital painting? What if it's a composite from different sources? That happens all the time. And what if the image doesn't come from Lr/ACR, but somewhere else? How about those who use, oh, say, Capture One? Should they then allow the scale to switch?

There's a hundred reasons this can't work in practice, and why the -100 to +100 scale is the only practical option with RGB files.

As explained earlier in this thread, Lightroom will do exactly the same as Photoshop/ACR and give you a scale -100,0,+100 on a preprocessed RGB image. It only gives a Kelvin value on raw images. You seem to have a misconception that Lightroom works differently to ACR in this respect, it does not.

Dave