Hero 4 Silver FOV spec, by degrees

[John Locke]

Does anyone know the actual spec from GoPro for WIDE, MEDIUM and NARROW field of view? How many degrees wide is each one? I've looked everywhere and can't seem to find it. It appears to be a secret.

 

[PdxSteve]

Found this:

This camera shoots at three different viewing angles: wide (170 degrees), medium (127 degrees) and narrow (90 degrees). The wide view gives you the best point-of-view footage; however, if you're filming someone else, you might want to try the medium viewing angle for a less zoomed-out look.

GoPro HERO4 Black Review 2016 - TopTenREVIEWS
H4 Black/Silver use same sensor and lens so the info should be the same.