The curvature is down to the 200 degree field of view which is more than the human eye could see if their eyes were on the side of their head, in theory i could create an image with a full 360 degree field of view showing everything in front and behind me, its just something ive been experimenting with of late and started with Salfords new ground
Salford
And carried in at Headingley
And Dewsbury
Obviously not everyones cup of tea but the Salford one was picked up for next months RL World so can't be all bad.