I’ve been testing the modified 5.4mm lens from Peau Productions on my GoPro Hero 3 black and the DJI Phantom. I would really like an alternative lens/camera rather than the stock fish-eye lens on the GoPro to use on my Phantom quadcopter. This would be especially useful for shooting architecture or anything where you are trying to avoid distorting vertical or horizontal lines which the GoPro tends to do rather easily. I’ve got a full video review coming very soon of my thoughts on this lens. So far I’ve got mixed feelings about it!