L = 2 * tan (FOV° / 2) * DIST

FOV° = 2 * tan-1 ( L / ( 2 * DIST))
A little help to calculate the surface seen by a webcam at a fixed distance.


DIST : cm

FOV : °

webcam resolution: horizontal pixels * vertical pixels



Results :

Surface : cm * cm

pixels / cm :

surface dpi : dpi









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