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Re: Horizontal FOV of Microsoft Lifecam Cinema
That's mostly the difference between horizontal FOV and diagonal FOV. Using 53.0 degrees HFOV and a 16:9 ratio between the HFOV and VFOV and the formula for the angle between two points on a sphere given latitude and longitude, and assuming that rectangle is bisected by the equator, I get 66.0 degrees as the diagonal FOV.
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