Raw histogram and why does it matter

No what is you baseline exposure for that make of camera and what processing is being done that is hidden you in the raw conversion.
WB correction is only being added to the blue and the red

If RawDigger is not accurate as you say, then what should have RawDigger displayed?

Without having the actual raw file I cannot say what is happening.

What I can say from the raw histogram is that the greens are about 2.5 stops underexposed assuming 16000 is the clipping point for 14 bit data.

The reds are nearly 4 stops underexposed and the blues are 3 and bit stops underexposed.

So based on my previous post you could have safely added 2 stops of exposure* than what you actually did for the shot the raw histogram is related to without clipping the raw data. Now of course the camera's histogram would have shown significant clipping if you added 2 stops of exposure* but the actual raw data would not have been clipped.

If you had added that 2 stops of exposure* and then opened the raw file in ACR and lowered the image lightness by 2 stops using the 'exposure' slider then the resultant image would have less visible noise than the original image where you did not add that 2 extra stops of exposure*

here is the brightest portion of your scene found within that raw file after we have corrected for the BLE and other processing done behind the scene by ACR while still using your in camera WB setting

No what you are seeing is the hidden processing done by your raw converter

At the top of this grab is the histogram of the image in PS with the selected area, this raw has been converted for the in camera WB but with the hidden ACR process and BLE removed. The grab bellow is the raw histogram from RD notice how the green channels of the top and bottom fall very similar from the right

So what is showing you the incorrect data the RD or how ACR is processing the image
Stop and think about it if all I have done is removed the BLE and some of the processing done by the ACR hidden to you and they show similar results how can ACR be used to aid you as to how your camera should be setup if this hidden processing is not known to you in the first place?

this is quite funny as i post a neutral grey and you post red 🤨😵‍💫 weird if you ask me.

tell me what settings need to be changed on my camera given you have the raw file ?

\
Been told to you several times
dprevived.com/t/raw-histogram-and-why-does-it-matter/1848/post/15827/

this image is not 4 stops underexposed it is perfectly exposed. it has basically no adjustments.

Colors can be clipped outside of neutral or something that is not white weird that you don't know this

And you do realize that what your are trying to show is nothing more than where a color falls within a values of 0,0,0 to 255,255,255 in a given color space and not what is contained within a raw file

Other than the hidden adjustments being done without you know so then yes, but if you use RD you would know what adjustments are being done without your knowledge.

this shows "0"EV can you not see that ?

Has anyone considered that this may be a wind up? Lots of it in DPReview forums, perhaps it has migrated here. If it is not then I apologise to the OP. Ken

Hi Ken what does EV mean ?

I am so over this, everyone do yourself a favour and read this.

www.dpreview.com/articles/6641165460/ettr-exposed

Yup maybe you should
"Rather generally, RawDigger is a very useful resource for gaining meaningful information in relation to shooting ETTR. With RawDigger you can see the actual raw histograms and see exactly how closely you have achieved ETTR."

"White balance also affects the histograms, sometimes resulting in a story that differs greatly from that of the underlying raw-data histograms and therefore potentially providing misleading information for ETTR."

Yup covered it here

dprevived.com/t/raw-histogram-and-why-does-it-matter/1848/post/14901/

"The amount of highlight headroom varies from camera to camera, and you will have to experiment with your camera to determine whether you have 2-2/3, 3, or even more EV of headroom. You can determine this amount quite accurately by using software like Rawdigger"

Yup covered it again here

dprevived.com/t/raw-histogram-and-why-does-it-matter/1848/post/14901/

This is what is hidden to you with the raw converters with the BLE and other processing
and the last quote

"And it provides accurate feedback about the efficacy of your ETTR techniques. It is, therefore, highly recommended software for any raw shooter wanting to perfect using ETTR."
I have and others have been saying this all along

I don't think you even read what you linked to
and certainly not anything people have been telling you here

conclusion: thanks for the discussion but needed to know how good my studio exposures were using another program.
I will not be adjusting my work flow because my images show "PERFECT EXPOSURE" using the in camera A74 histogram.
If you want to debate it further then dont include me. as im now brain dead after a record 230 posts 😵‍💫😵‍💫😵‍💫

my go to histogram fast stone.

yes i was referring ev on the raw digger histogram as the figure "0" and after reading the info on there site and at DPR i was right as the histogram is in Photographic mode. or whatever it is.