Welcome to Michael's blog. Michael Andrew, (aka Michael The Maven) is a freelance producer, photography instructor, tech innovator, and when needed, disaster aid specialist. Disclaimer: Michael is a participant in Bhphoto & Amazon affiliate programs that provides an advertising commission if you purchase through links on this website.
Below are some of the image examples of what we are seeing, again these results are found by over exposing part of the frame with RAW files, adding between 1-2 EV and then lifting the shadows 100% (which makes it easier to see).
Most cameras do not display this behavior when processing RAW files and neither the Z7, XT3, or A7iii showed these kinds of artifacts within the same testing parameters. What I am saying is, if you have the issue, it is easy to recreate and is not consistent with other camera manufacturers.
This last image is the black cap test, which literally means taking a picture with the cap on and raising the EV and 100% shadows.