Preceding the release of the GoPro4, there was talk of them putting a magnetic battery back cover on the camera which is counter-productive to MR's equipped with GPS/digital compass.
1) How does the GoPro4 lens focus? i.e., at infinity or closer as per the previous issues related to the GoPro3+ Black where some were complaining that it was focused too close.
2) Does the GoPro4 have a magnetic back/battery cover?