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Useful Photogrammetric Values

This table should be used as a guide only. No responsibility is accepted for errors or inconsistencies in the included data.
Scale of Photography Photo Gain (metres) Photo Area (km2) Wide Angle
Focal Length = 152.4mm (6")
Super Wide Angle
Focal Length = 88.9mm (3½") 
Horizontal Accuracy Stand. Dev. (metres)
Flying Height (metres) Vertical Flying Height (metres) Vertical
Accuracy Stand. Dev. (metres) Contour Interval (metres) Accuracy Stand. Dev. (metres) Contour Interval (metres)
1 : 1,000
230 0.0523 150 0.01 - 0.03 0.1   0.02 - 0.03
1 : 2,000 455 0.209 305 0.02 - 0.05 0.2 0.03 - 0.06
1 : 3,000 685 0.470 455 0.03 - 0.07 0.25 0.05 - 0.10
1 : 4,000 915 0.836 610 0.04 - 0.09 0.5 0.06 - 0.12
1 : 5,000 1145 1.306 760 0.05 - 0.10 0.5 445 0.03 - 0.07 0.25 0.08 - 0.15
1 : 6,000 1372 1.881 915 0.06 - 0.15 0.5 535 0.04 - 0.08 0.5 0.09 - 0.20
1 : 8,000 1830 3.345 1220 0.10 - 0.20 1 710 0.05 - 0.10 0.5 0.12 - 0.25
1 : 10,000 2285 5.226 1520 0.10 - 0.25 1 890 0.06 - 0.15 0.5 0.15 - 0.30
1 : 12,000 2745 7.525 1830 0.15 - 0.30 1 1065 0.07 - 0.15 1 0.20 - 0.40
1 : 14,000 3200 10.243 2130 0.15 - 0.30 2 1245 0.10 - 0.20 1 0.20 - 0.45
1 : 16,000 3660 13.378 2440 0.20 - 0.35 2 1420 0.10 - 0.20 1 0.25 - 0.50
1 : 18,000 4115 16.932 2740 0.20 - 0.40 2 1600 0.10 - 0.25 1 0.30 - 0.55
1 : 20,000 4570 20.903 3050 0.20 - 0.45 2 1780 0.15 - 0.25 1 0.30 - 0.60
1 : 25,000 5715 32.661 3810 0.25 - 0.60 2.5 2220 0.15 - 0.35 2 0.40 - 0.75
1 : 30,000 6860 47.032 4570 0.30 - 0.70 2.5 2665 0.20 - 0.40 2 0.45 - 0.90
1 : 35,000 8000 64.016 5330 0.40 - 0.80 4 3110 0.25 - 0.45 2 0.55 - 1.05
1 : 40,000 9145 83.613 6100 0.45 - 0.90 4 3555 0.25 - 0.55 2.5 0.60 - 1.20
1 : 45,000 10285 105.82 6860 0.50 - 1.05 4 4000 0.30 - 0.60 2.5 0.70 - 1.35
1 : 50,000 11430 130.64 7620 0.55 - 1.15 5 4445 0.30 - 0.65 2.5 0.75 - 1.50
1 : 60,000 13715 188.13 9140 0.65 - 1.35 5 5335 0.40 - 0.80 4 0.90 - 1.80
1 : 70,000 16,000 256.06   6225 0.45 - 0.90 4 1.05 - 2.10
1 : 80,000 18,290 334.45 7110 0.50 - 1.05 5 1.20 - 2.40
1 : 90,000 20,570 423.29 8000 0.60 - 1.20 5 1.40 - 2.70

 

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