The stock Hero3+ Black was noticeably out of focus at any distance over 6ft, compared to the Hero3 Black.
Refocused it by turning the lens about 2.5mm (measured from mark on the edge of the lens).
Can see it is now razor sharp at distance. May have to download original file to see max details.

Loading more stuff…

Hmm…it looks like things are taking a while to load. Try again?

Loading videos…