Ok, here are two GIF animations made from frame captures in all 3 of the FOV modes available in 2.7K resolution, and all 4 FOV modes available in 1080 resolution, respectively. I hope the downsized frames are big enough to convey the desired information. All shots were taken with the GoPro 4 Silver on a tripod. IMHO the Linear mode is so good that it outweighs the nuisance of having to turn on the camera manually.

