ULANZI OA-6 OSMO Action Fisheye Lens Aluminum Alloy 180 Degree Super Wide Angle Fish Eye Lens for DJI OSMO Action Camera Photography Videomaking Accessories

Don't try this if you use your camera with rock-steady mode on, it's useless. You'll see the ring of the lens in the frame move randomly as the stabilization does it's job. It's very annoying! Wish I tested before shooting an MTB race with it. Cropping in in post helps somewhat, but still a mess. This one's going back I'm afraid.

Waste if you do not have the right use for it but for $16.00 it’s ok to have

Your browser does not support HTML5 video.  This is an awesome screw on lens to use for super fisheye clips. Add ontop of that that the Osmo action can use rocksteady and you have stabilised fisheye shots in your pocket.Highly recommend. The lens just screws onto the thread. Very easy to use. Metal and glass construction.