
m100.0050.0025.0010.005.001.20D →
ft.327.90164.0082.0032.8016.403.90D →
ft.412.67206.34103.1741.2720.634.95VFOV80°
mm524.44262.22131.1152.4426.226.29IFOV80°
in.20.6510.315.162.061.030.25IFOV80°
Figure 13.11 F-number and close focus limits for various lenses
80°65°45°24°12°7°Lens →
0.150.20.10.31.24Close focus limit (m)
0.490.640.320.983.9313.11Close focus limit (ft.)
1.01.51.01.01.01.0f-number
98 Publ. No. 1 557 945 Rev. a43 – ENGLISH (EN) – April 6, 2004
13.11 – Relationship between fields of view and distance
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