PeterWem

Canon EOS D2000/Kodak DCS 520c. It is a Canon 1N with a digital back from Kodak https://en.wikipedia.org/wiki/Canon_EOS_D2000 Canon created a software to convert Kodak DCS 520c raw files from Tiff...

I see and I understand.

> How did you pick what the right black areas are? I used dcraw to get a pgm file. Then I loaded the pgm file into GIMP and brightened the...

Same. [IMG_2637_CR2.txt](https://github.com/darktable-org/rawspeed/files/15304749/IMG_2637_CR2.txt) The sample from RPU says firmware 1.0.0. The one I got has 1.1.0 To me it seems like Canon didn't mask those 4 columns at all with this...

> Huh, that's bizarre. And the horizontal black area in `cameras.xml` also (already) does not match the makernotes... That should be good, shouldn't it? 4 lines down to crop out...

With permission to share this raw file here for everyone, https://drive.google.com/file/d/1fAzOCo2dGLM6yJfyJB-yG34KyFTRmfgg/view?usp=drive_link I asked the photographer about high ISO shot because the different parts of the optical black area are more...

I have the same issue with Canon EF 800/5.6 IS USM. Especially when taking pictures of something with a blue sky in the background.