Focal length mm to horizontal angle of view (degrees) at APS-C Sony/Fuji 23.5mm

1 Focal length = 170.270971 Horizontal angle of view · profile-dependent conversion · context: sensor profile

Direct Answer

1 Focal length equals 170.270971 Horizontal angle of view

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

For 2 Focal length, this profile returns 160.680214 Horizontal angle of view.

Converter Calculator

1 Focal length (mm) =
170.270971 Horizontal angle of view (degrees)

Explanation

APS-C Sony/Fuji 23.5mm uses crop factor 1.5 and sensor width 23.5 mm. HFOV = 2 x atan(23.5 / (2 x focal_mm)) in degrees. For input 1 mm, output is 170.270971124 deg.

Focal length to Horizontal angle of view 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

Focal length (mm)Horizontal angle of view (degrees)
1 170.270971
2 160.680214
5 133.897398
10 99.200191
14 80.012512
18 66.271219
24 52.1712
35 37.115275
50 26.449102
85 15.74084
100 13.403052
135 9.948639
200 6.724524