ULANZI OA-6 Super Fisheye Optical Glass Lens 180 Degree For DJI Osmo Action Camera
A part of the review has been auto-translated.
It is an extra lens for the DJI Osmo Action. So, you have to unscrew the protective lens and screw this one on it. The wide angle lens' projected image cannot cover the whole sensor, therefore you will get a huge black area over your image. It makes the RockSteady useless. I guess that the algorithm just gets confused by the circle on the image and it just cannot adjust for the vibrations and movements. You can for example record in 4k 4:3 and then crop out the image. You get something like full HD (a little below) resolution after cropping, but there is a drastic difference in the image quality. The lens also gives a slight tinting to the image, especially to the middle of it. It is fun lens, but not really useful.
Good Quality, will purchase again.