Fisheye distortion correction

maybe-later
#1

A setting to correct the inherent distortion of the camera lens would be great, even if it comes at the cost of losing just a little of the current field-of-view.
Some cameras call this “Correct Barrel Distortion”. Technically I think it’s a “fisheye” correction. Either way, straightening out the bowed-out look of recordings and photos would make them look a lot better for viewing, saving, and sharing.