Update your camconst.json if you're using one of these cameras

If you have one of the cameras listed below, then replace the file “camconst.json” which comes with RawTherapee 5.2 with this one to benefit from improved support:
https://raw.githubusercontent.com/Beep6581/RawTherapee/dev/rtengine/camconst.json

  • Canon EOS 200D (EOS Rebel SL2, EOS Kiss X8)
  • Canon EOS 6D Mark II
  • Canon EOS 77D (Canon EOS 9000D)
  • Canon EOS 800D (Canon EOS Rebel T7i, Canon EOS Kiss X9i)
  • Canon EOS M6
  • Canon PowerShot G9 X Mark II
  • Fujifilm GFX 50S
  • Fujifilm X-T20
  • Fujifilm X100F
  • Nikon D7500
  • Nikon D80
  • Olympus Tough TG-5
  • Panasonic Lumix DC-GH5
  • Pentax KP
  • Sony α9 (Sony ILCE-9)

One of those is very much not like the others… (Nikon D80)