As the sun travels away from us, the angel from us to the sun gets smaller and smaller. As the angel from us to the sun gets smaller, frequency from sunlight reaching us also gets smaller. As the frequency gets small enough, the sunlight that reaches us will be ultraviolet, which we can not see with our eyes.
That is an issue of perspective, as the horizon rises to eye level. Cameras have a focal length, which limits how far they can see across our flat earth.
As the sun travels away from us, the angel from us to the sun gets smaller and smaller. As the angel from us to the sun gets smaller, frequency from sunlight reaching us also gets smaller. As the frequency gets small enough, the sunlight that reaches us will be ultraviolet, which we can not see with our eyes.
If what you say is true, you should be able to see the sun at night using a camera that can process UV light.
That is an issue of perspective, as the horizon rises to eye level. Cameras have a focal length, which limits how far they can see across our flat earth.
Please demonstrate that cameras would not be able to view beyond a certain range on a flat Earth and provide numbers.
So far, we only have your unsubstantiated claims.
Horizon form at about 3 miles away, for a person of normal height. Any cameras not seeing a object beyond 3 miles away serves as proof of this.