Kandao Obsidian GO is an affordable professional 360 camera that shoots 4K 3D 360 video, or 8K 2D or 3D 360 photos. It is based on the Kandao Pioneer but it is being relaunched to aim at those just beginning to shoot professionally.
Here is a sample 4K 3D 360 video from the Obsidian GO. To see it in 3D, you should view the video using your smartphone, and click on the Google Cardboard icon.
As you can see, the video is very detailed and has excellent dynamic range.
Kandao Obsidian GO is available here. With just $19500 HKD, making it one of the most affordable professional 3D 360 cameras.