Horizontal angle of view (degrees) to focal length mm at Compact 1/2.5" class

1 Horizontal angle of view = 330.015312 Focal length · profile-dependent conversion · context: sensor profile

Direct Answer

1 Horizontal angle of view equals 330.015312 Focal length

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

For 2 Horizontal angle of view, this profile returns 164.995089 Focal length.

Converter Calculator

1 Horizontal angle of view (degrees) =
330.015312 Focal length (mm)

Explanation

Compact 1/2.5" class uses crop factor 6.8 and sensor width 5.76 mm. focal_mm = 5.76 / (2 x tan(HFOV/2)). For input 1 deg, output is 330.015312372 mm.

Horizontal angle of view to Focal length is profile-bound here: the selected sensor profile controls the mapping used by calculator and reference table.

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)
1 330.015312
2 164.995089
5 65.962845
10 32.918551
14 23.455718
18 18.183604
24 13.549335
35 9.134193
50 6.17618
85 3.142968
100 2.416607
135 1.192935
200 -0.507822