Focal length mm to horizontal angle of view (degrees) at Smartphone 1/2.55" class

1 Focal length = 143.130102 Horizontal angle of view · profile-dependent conversion · context: sensor profile

Direct Answer

1 Focal length equals 143.130102 Horizontal angle of view

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

For 2 Focal length, this profile returns 112.619865 Horizontal angle of view.

Converter Calculator

1 Focal length (mm) =
143.130102 Horizontal angle of view (degrees)

Explanation

Smartphone 1/2.55" class uses crop factor 6 and sensor width 6 mm. HFOV = 2 x atan(6 / (2 x focal_mm)) in degrees. For input 1 mm, output is 143.130102354 deg.

From Focal length to Horizontal angle of view, results depend on the selected sensor profile and stay consistent with that profile across table rows and calculator input.

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

Focal length (mm)Horizontal angle of view (degrees)
1 143.130102
2 112.619865
5 61.927513
10 33.398488
14 24.189514
18 18.924644
24 14.250033
35 9.798185
50 6.867261
85 4.04273
100 3.436716
135 2.54606
200 1.718744