Rendered EXR image doesn’t have full high dynamic HDR range. It works fine for ranges above SDR like overexposed skies but it doesn’t include dark shadow areas. This is why sometimes is hard to recreate original D5 image inside Photoshop because EXR doesn’t include low-end HDR data and it even loose saturation too.
It is noticeable in Photoshop Camera Raw “plugin” because it completely doesn’t know which range is dark and which is shadow. It treat shadows as 80% of EXR image and dark areas as like 5% of them. Night views rendered from D5 completely doesn’t work in Camera Raw inside Photoshop.
It looks like rendered EXR is a fake HDR image just like parts of SDR range were moved above this range to simulate high dynamic bright overexposed areas but after that we loose dark areas inside HDR range. This SDR range should be stretched not moved I think.
I will show examples tomorrow.
