Compression Sigma 8mm - Michel Thoby

Measured Vs Theoretical Angle of View Sigma 8mm/EOS 300D. -150. -100. -50. 0. 50. 100. 150. -2000. -1500. -1000. -500. 0. 500. 1000. 1500. 2000.
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Measured Vs Theoretical Angle of View Sigma 8mm/EOS 300D 150

Angle of View (degree)

100

50

0 -2000

-1500

-1000

-500

0

500

1000

1500

-50

-100

-150 Pixels along DIA from center of frame Measured angle of view http://michel.thoby.free.fr/SIGMA8mm/CorrectionCA&FO/PS_CS_ability.html Theoretical Angle of view computed from Helmut's PT formula 2*ASIN(W/4*f) Linear Ideal theoretical Angle of view W=c*tetha

2000