Focal length mm to horizontal angle of view (degrees) at Medium format 53.4x40

1 Focal length = 175.710186 Horizontal angle of view · profile-dependent conversion · context: sensor profile

Direct Answer

1 Focal length equals 175.710186 Horizontal angle of view

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

For 2 Focal length, this profile returns 171.432363 Horizontal angle of view.

Converter Calculator

1 Focal length (mm) =
175.710186 Horizontal angle of view (degrees)

Explanation

Medium format 53.4x40 uses crop factor 0.67 and sensor width 53.4 mm. HFOV = 2 x atan(53.4 / (2 x focal_mm)) in degrees. For input 1 mm, output is 175.710186393 deg.

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

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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)
1 175.710186
2 171.432363
5 158.786603
10 138.93495
14 124.659949
18 112.027666
24 96.09675
35 74.676916
50 56.204434
85 34.876848
100 29.898493
135 22.374907
200 15.208051