see also:
effective focal length | horizontal fov | vertical fov | diagonal fov |
---|---|---|---|
50mm | 39.6 | 27.0 | 46.8 |
100mm | 19.8 | 13.5 | 23.4 |
200mm | 9.9 | 6.75 | 11.7 |
300mm | 6.6 | 4.5 | 7.8 |
400mm | 4.95 | 3.38 | 5.85 |
500mm | 3.96 | 2.7 | 4.48 |
1000mm | 1.98 | 1.35 | 2.34 |
2000mm | 1 | 0.68 | 1.17 |
5000mm | 0.4 | 0.27 | 0.45 |
effective focal length | equivalent focal length in 35mm system | horizontal fov | vertical fov | diagonal fov |
---|---|---|---|---|
45mm | 90mm | 22 | 16.5 | 27.5 |
50mm | 100mm | 19.8 | 14.88 | 24.78 |
75mm | 150mm | 14.85 | 11.16 | 18.59 |
100mm | 200mm | 9.9 | 7.44 | 12.39 |
135mm | 270mm | 7.3 | 5.5 | 9.2 |