I am using a current nightly build RawTherapee_dev_5.8-2735-g8bb06c2_20210121.AppImage + stable 5.8 release, following issue is same in both …
I have new Fujifilm x100f (producing Fuji’s x-trans RAFs) camera and hit interesting issue with my beloved RawTherapee that I am using long time and that works greatly with Nikon RAW files.
If you open for editing the RAF files from Fuji, they have broken colours. After some test and trial, I’ve found, that Darktable works with them much better because Darktable contains a brand-like colour profile curves, see please here:
in picture above there are NO changes, just opened the RAF file with Dartable after deleting all previously created xmp and pp3.
Now if you open the same file in RT, you will get result like this
there’s just no other usable preset, loading colour profiles like this won’t help and so on …
So the only resolution was to create a Tone Curve profile for my Fuji (please don’t mind a Film-like flavour, I did it as for proof of concept) and suddenly the picture looks usable with this
my profile looks like this:
> cat ~/.config/RawTherapee/profiles/FUJI-x100f-C.rtc CatmullRom 0 0 0.05 0.0344645 0.171948 0.17535 0.292675 0.402088 0.462864 0.68235 0.696062 0.936923 1 1
Please consider adding a brand-like profiles whenever needed similarly like Dartable does. Default profiles are good with Nikon for example but obviously not working well with Fuji (at least) and it might drive away a less experienced users of RT because simply the out-of-box Tone Curve is meh while working with Fuji’s RAFs …
best regards, dan