The problem I felt while watching the streamed video was the narrow viewing angle of the ordinary pi camera.

So, a few days ago, I got a Pi Camera (g) with a fish-eye lens and tested.

Below is a picture with fisheye lens.

When compared the image between normal camera and fisheye camera, I could see that the latter showed a mush larger viewing angle. But I could see the distortion caused by the spherical effect appears on the edge of image.. I think I need to think about whether there is any improvement in this part.