what does the focal distance actually mean?
"scott" wrote in message
news:NfHEc.276$WO5.171@newsfe3-gui...
SNIP
Is it possible to work out the field of view in degrees from
the focal length?
Yes, if you know the sensor size, at infinity focus it's:
ATAN( sensor_size / 2 / focal_length) * 2 = FOV
Bart
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