Wanna see for yourself that the earth isn't flat? You can fly a Russian MiG-29 to 60,000 feet, and roll the aircraft to see that the earth is a globe. No fisheye. Simply pure, clear, canopy plastic. Where can you fly the MiG-29? In Russia, of course. But you can watch a flight here:
MiG-29 High Altitude Stratosphere Flight - long version 8 camera HD | flight data
https://www.youtube.com/watch?v=PEH8iLjlodM
MiG-29 High Altitude Stratosphere Flight - long version 8 camera HD | flight data
https://www.youtube.com/watch?v=PEH8iLjlodM
In the Russian Mig video the horizon goes from convex to concave as the plane banks and rolls. Proof it's the lens causing the curving effect. Vod is going to be confused as hell on this one.
At 121,000 feet the earth appears flat.
https://www.youtube.com/watch?v=WQITXbcz2hg
And you guys think you see ships sailing over the curve at sea level a few miles out?