FOV Calcs
Camera Field Of View (FOV) calculations
When flying a camera over an area, a typical question is how many pixels per unit area will the camera see. Typically, the cameras are flow at the widest angle settings. The pixels per unit area that you require depend on the type of data you require. For instance, calculating a overall biomass for a field can be done with relatively few pixels while trying to spot specific plant problems requires much higher pixel density.
Below are calculations for some Canon point and shoot cameras.
| Camera | ELPH 300 | Elph 110 | Canon SX260 |
| Lens Equiv | 24-120mm | 24-120mm | 25-500mm |
| effective Megapixels | 12,100,000 | 16,100,000 | 12,100,000 |
| Sensor | 1/2.3 inch | ||
| Horizontal Pixels | 4,000 | 4,608 | 4,000 |
| Vertical Pixels | 3,000 | 3,456 | 3,000 |
| Wide FOV Horiz Degrees | 73.70 | 73.70 | 71.50 |
| Wide FOV Vert Degrees | 53.10 | 53.10 | 51.30 |
| Wide FOV Diag Degrees | 84.10 | 84.10 | 81.70 |
| 1000m FOV Horiz Meters | 1,500.00 | 1,500.00 | 1,440.00 |
| 1000m FOV Vert Meters | 1,000.00 | 1,000.00 | 960.00 |
| Area Meters | 1,500,000.00 | 1,500,000.00 | 1,382,400.00 |
| Pixels per Meter^2 | 8.07 | 10.73 | 8.75 |
| 100m FOV Horiz Meters | 150.00 | 150.00 | 144.00 |
| 100m FOV Vert Meters | 100.00 | 100.00 | 96.00 |
| Area Meters | 15,000.00 | 15,000.00 | 13,824.00 |
| Pixels per Meter^2 | 806.67 | 1,073.33 | 875.29 |
| Pixels per Cent^2 | 0.08 | 0.11 | 0.09 |
| 10m FOV Horiz Meters | 15.00 | 15.00 | 14.40 |
| 10m FOV Vert Meters | 10.00 | 10.00 | 9.60 |
| Area Meters | 150.00 | 150.00 | 138.24 |
| Pixels per Meter^2 | 80,666.67 | 107,333.33 | 87,528.94 |
| Pixels per Cent^2 | 8.07 | 10.73 | 8.75 |
| 50m FOV Horiz Meters | 75.00 | 75.00 | 72.00 |
| 50m FOV Vert Meters | 50.00 | 50.00 | 48.00 |
| Area Meters | 3,750.00 | 3,750.00 | 3,456.00 |
| Pixels per Meter^2 | 3,226.67 | 4,293.33 | 3,501.16 |
| Pixels per Cent^2 | 0.32 | 0.43 | 0.35 |
| 25m FOV Horiz Meters | 37.50 | 37.50 | 36.00 |
| 25m FOV Vert Meters | 25.00 | 25.00 | 24.00 |
| Area Meters | 937.50 | 937.50 | 864.00 |
| Pixels per Meter^2 | 12,906.67 | 17,173.33 | 14,004.63 |
| Pixels per Cent^2 | 1.29 | 1.72 | 1.40 |
| 30m FOV Horiz Meters | 45.00 | 45.00 | 43.20 |
| 30m FOV Vert Meters | 30.00 | 30.00 | 28.80 |
| Area Meters | 1,350.00 | 1,350.00 | 1,244.16 |
| Pixels per Meter^2 | 8,962.96 | 11,925.93 | 9,725.44 |
| Pixels per Cent^2 | 0.90 | 1.19 | 0.97 |
| 28m FOV Horiz Meters | 41.00 | 41.00 | 40.32 |
| 28m FOV Vert Meters | 28.00 | 28.00 | 26.88 |
| Area Meters | 1,148.00 | 1,148.00 | 1,083.80 |
| Pixels per Meter^2 | 10,540.07 | 14,024.39 | 11,164.40 |
| Pixels per Cent^2 | 1.05 | 1.40 | 1.12 |
| 32m FOV Horiz Meters | 46.50 | 47.00 | 46.80 |
| 32m FOV Vert Meters | 31.00 | 32.00 | 30.72 |
| Area Meters | 1,441.50 | 1,504.00 | 1,437.70 |
| Pixels per Meter^2 | 8,394.03 | 10,704.79 | 8,416.24 |
| Pixels per Cent^2 | 0.84 | 1.07 | 0.84 |
| 32 meters = 105 feet |