Raw Histogram??

It is most definitely incorrect, technically, to conflate "relatively ISO-invariant" with "totally-ISO-irrelevant" or "ISO-less", but there are differences in opinion, based on individual experience, that cause people to draw the line at different points in the sand as to whether the difference is practically relevant. Jim and I probably see the underlying empirical facts in a similar way, but we have very different editorial comments on practice, resulting from our own different subject matter.

On the opposite extreme is a camera like the Nikon D5, which still has some of the lowest pre-gain read noise in the industry, but has about the worst post-gain read noise in the industry, with currently-produced cameras. The newer on-sensor column-ADC designs are somewhere in-between.

And probably different opinions on what are acceptable amounts of image noise. Almost all the time, I call the image too noisy before the read noise begins to play a role in the visible noise.

Yes, because Kodak was once arguably a "bureaucracy" in the World of Photography, probably long before I.S.O.

Indeed:

blog.kasson.com/the-last-word/nikon-d5-read-noise-vs-iso-setting/

And then there's QWERTY.

"Irrationally implemented" and "fake" are two different things, IMO.

The rule of forum efficiency goes something like this: make your posts 15% shorter by dropping relevant qualifying terms or conditionals to avoid seeming too meticulous, and suffer 5x as many posts from the resulting confusion.

... and to never capitalize stuff like "imo" because it makes sentences wider and less abstruse ..

... (distant whine) ... "but im on my smartphone" 😋

G.W. Whistler used 5', that was 1524 mm, establishing a new bureaucracy ;)

they change acordingly, same as my other cameras

Accordingly enough to know when the raw clipping hits? Same as with the other cameras? With all camera models I've checked, dozens of them, it was never the case ;)

yep. its so accurate i only have to take 1 image, i havnt once taken several images with different exposures and chosen the correct image. the only problem is in real world use you cant see the rear lcd image very well in the sun let alone the histogram ends i would have to put my close up reading glasses on.

heres the file have a look how acurate it is.

1drv.ms/i/s!ArStsPjQ301PmUbgamkMYtyrG0ou?e=Tf8Wr1

here is the olympus xz1 i axcidently posted the wrong file.

Deleted.

There are specular reflections in the image.