DJI says the X4S has a FOV of 84 degrees. I was trying to calculate the actual FOV with some test images and got a number closer to 72 degrees for the horizontal FOV. Has anyone else tried to do this or know why there might be such a big difference between DJI's specs and the actual values?

The X4S sensor has the dimensions of 13.2mm x 8.8mm.
At a focal length of 8.8 i calculate a diagonal FOV of 84.06°

Keule Posted at 2018-6-11 12:08
The X4S sensor has the dimensions of 13.2mm x 8.8mm.
At a focal length of 8.8 i calculate a diagonal FOV of 84.06°

Oh ok, so the specs are for the diagonal FOV. I am trying to figure out the Horizontal FOV, though.

Keule Posted at 2018-6-11 12:08
The X4S sensor has the dimensions of 13.2mm x 8.8mm.
At a focal length of 8.8 i calculate a diagonal FOV of 84.06°

Oh ok, so the specs are for the diagonal FOV. I am trying to figure out the Horizontal FOV, though.

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