Fish eye lenses create such distorted views of the world like a fish looking through a fish bowl but when the horizon is placed dead center, it serves as the wide-angle lens it is. My fish eye lens is a DX 10.5mm lens so when I put it on the D850, the D850 became a crop sensor camera. I took quite a few shots at Hopi Point in the Grand Canyon one morning trying to get the horizon dead center. This one of my successful attempts.