This is my solution to the GoPro and Hot-wheels 'zoom in', which only works with the Hero sessions, all I did was stick a flat adhesive to the existing body so it
GoPro LabsがGoPro HERO5 Sessionをサポート | CineD
GoPro HERO5 Black 4K Action Camera black CHDHX-501 - Best Buy
GoPro Hero 2018 with varifocal zoom and GoPro Hero 5 firmware - YouTube