I took some raw (CR2) photos with the Canon Powershot G5 X and want to edit them in darktable. The focal length is quite low and the distortion high. My Problem: I want to correct the distortion and don't know how.
The way I usually do this is by using darktable's
lens correction module which automatically chooses the right values based on the exif information. It works for DSLRs but this camera/ isn't known.
If there is a way to correct it, I wouldn't know which values to choose. The only hint I get is through the camera`s software which automatically saves a corrected preview jpeg roughly the same resolution embedded in the raw.
- What's the way to correct the distortion in darktable, if I cannot choose the right objective from the drop down menu in the lens correction module?
- How do I determine the values? Which values should I choose?