Looking for someone smart P4P vs Inspire 2 with X5S with 15mm Len. I am trying to find the heights to fly out I found this for the P4P but can someone please work with me to get the numbers for the Inspire 2 with X5S with 15mm Len

Example of P4P

We have a P4P with a camera that shoots a 4864x3684 pixel image. The camera has a Field of View (FOV) of 94 degrees.

Just assuming that the FOV of 90, then you have a triangle with 45 degree angle (isosceles or whatever), which means that the height is same as the base leg. Therefore the width of the view at any heigth is 2 x Altitude.

So using basic math the resolution is;

Res (in/px) = 2 x Altitude x 12 in/ft / 4864 pixels

And finally for the P4P camera;

100 ft = 0.5 in/px

200 ft = 1.0 in’px

300 ft = 1.5 in/px

400 ft = 2.0 in/px

+400 ft = no bueno!