Horizontal angle of view (degrees) to focal length mm at Smartphone 1/2" class

1 Horizontal angle of view = 366.68368 Focal length · profile-dependent conversion · context: sensor profile

Direct Answer

1 Horizontal angle of view equals 366.68368 Focal length

This result depends on the selected profile context: sensor profile.

For 2 Horizontal angle of view, this profile returns 183.327877 Focal length.

Converter Calculator

1 Horizontal angle of view (degrees) =
366.68368 Focal length (mm)

Explanation

Smartphone 1/2" class uses crop factor 5.6 and sensor width 6.4 mm. focal_mm = 6.4 / (2 x tan(HFOV/2)). For input 1 deg, output is 366.683680414 mm.

For Horizontal angle of view to Focal length, the active sensor profile determines the conversion constants applied to every value.

Read more

Keep the same profile in both directions to avoid mixing lookup systems that use different size mappings.

Method & Reference (Verified)

  • Method basis: profile-bound mapping; constants depend on the selected profile encoded in the route.
  • Profile reference: sensor profile.
  • Consistency rule: keep the same profile in mirror direction to avoid mixing incompatible mappings.

Common Conversion Values

Horizontal angle of view (degrees)Focal length (mm)
1 366.68368
2 183.327877
5 73.29205
10 36.576167
14 26.061909
18 20.204005
24 15.054816
35 10.149103
50 6.862422
85 3.492187
100 2.685119
135 1.325483
200 -0.564246