The 4K LENS 5.4mm f/2.5 60d HFOV 10MP (No Distortion) is the optimal non-fisheye lens for shooting in all resolutions including 4k video and 12MP photos yet being 2x zoomed in versus the stock GoPro lens. Perfect for use on aerial platforms as its slight extra weight will not effect gimbal balance. Due to the longer Back Focal Length of this lens it is recommended you also purchase our Supermount to hold the lens more securely than the stock lens mount.