Quick revival of this thread with a top tip,
If you don't like the fisheye look from go pro and other action cams and don't want to lose res by cropping the tiny sensor with medium and narrow view there is a solution.
Fisheye Removal software | DroneVIDEOfx.com
It's completely free, works very well but is specific to those of you using FCX as your editor on Mac. The writers say they are working on a version for Premiere.
Rob