[michaelt]

The ideas listed in the document are about correcting distortion when the image has already been taken and you can't control the scene.

As you've got the camera in hand, you've got an even simpler option available: You can print a special pattern called a 'ChArUco board' [1] take pictures of it from a few different angles, then you can calculate the camera "intrinsics" (field of view, lens distortion parameters) and "extrinsics" (relative positions of your two cameras) based on those images.

[1] https://docs.opencv.org/3.4/da/d13/tutorial_aruco_calibratio...

[qingcharles]

You can also use the patterns to generate DNG/RAW lens profiles which allow automatic lens correction in popular apps like Lightroom etc:

Adobe Lens Profile Creator

https://helpx.adobe.com/camera-raw/digital-negative.html