Field of view calculator
Angle of view for a rectilinear lens focused at infinity, calculated separately for the sensor's width, height and diagonal.
The formula
Field of view = 2 × atan(d ÷ (2 × f)), where f is the focal length and d is the sensor dimension along the direction you are measuring: width for horizontal, height for vertical and the diagonal for diagonal field of view.
Using the real width and height matters. Two formats with the same crop factor but different aspect ratios have the same diagonal field of view and different horizontal and vertical angles. Lens makers usually quote the diagonal figure.
Crop factorfull-frame diagonal ÷ sensor diagonal
Equivalent focal lengthfocal length × crop factor
Field of view2 × atan(sensor dimension ÷ (2 × focal length))
Assumes a rectilinear lens focused at infinity. Fisheye lenses and close focusing give different angles.
Horizontal field of view by format
Degrees, for common focal lengths on every format.
| Format | 14 mm | 24 mm | 35 mm | 50 mm | 85 mm | 135 mm | 200 mm |
|---|---|---|---|---|---|---|---|
| Medium Format 44×33 | 114.8° | 84.8° | 64.1° | 47.3° | 28.9° | 18.4° | 12.5° |
| Full Frame | 104.3° | 73.7° | 54.4° | 39.6° | 23.9° | 15.2° | 10.3° |
| APS-H | 89.8° | 60.3° | 43.5° | 31.2° | 18.6° | 11.8° | 8.0° |
| APS-C (Sony, Nikon, Fujifilm) | 80.3° | 52.4° | 37.3° | 26.6° | 15.8° | 10.0° | 6.8° |
| APS-C (Canon) | 77.1° | 49.8° | 35.3° | 25.1° | 14.9° | 9.4° | 6.4° |
| Micro Four Thirds | 63.4° | 39.6° | 27.8° | 19.6° | 11.6° | 7.3° | 5.0° |
| 1-inch | 50.5° | 30.8° | 21.4° | 15.0° | 8.9° | 5.6° | 3.8° |
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