Examples
Examples
Try the starting example
- Sensor width (mm)
- 23.5
- Sensor height (mm)
- 15.6
- Focal length (mm)
- 600
- Horizontal field (degrees)
- 2.243798
- Vertical field (degrees)
- 1.489606
- Rectangular approximate sky area (square degrees)
- 3.342376
Try another scenario
- Sensor width (mm)
- 25.85
- Sensor height (mm)
- 15.6
- Focal length (mm)
- 600
- Horizontal field (degrees)
- 2.468111
- Vertical field (degrees)
- 1.489606
- Rectangular approximate sky area (square degrees)
- 3.676514
Calculation method
Calculation method
Horizontal field (degrees)
Each field=2 atan(sensor dimension/(2 focal length)); area is product in degrees.
Vertical field (degrees)
Each field=2 atan(sensor dimension/(2 focal length)); area is product in degrees.
Rectangular approximate sky area (square degrees)
Each field=2 atan(sensor dimension/(2 focal length)); area is product in degrees.
Symbols and units
- a
- Sensor width (mm)
- b
- Sensor height (mm)
- c
- Focal length (mm)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Tangent-plane rectangle; area is not exact spherical solid angle. Supported limits: All required fields must be finite values of the exact declared type and within displayed bounds. Lists contain1–1000 finite numbers. JSON tables are numeric rectangular rows, at most100 rows and30 columns; individual tools have stricter shape/domain constraints. Tangent-plane rectangle; area is not exact spherical solid angle.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.