In the absence of a distortion profile for this lens I had a quick look at a manual correction in CR today. Turns out setting the simple barrel distortion correction slider to about "+9" does a pretty good job when the Sigma is at 14mm, where it's distortion is most obvious. Ignore the otther settings in the dialog as they were adjusted to allow for the fact that my test grid was not perfectly parralel to the sensor.
Oct 28, 2019 at 08:58 PM
Previous versions of rvh23's message #15028167 « Sigma 14-24mm f/2.8 DG DN first impressions »
