Focal length mm to full-frame equivalent mm at APS-H 27.9mm

1 Focal length = 1.29 35mm equivalent focal length · profile-dependent conversion · context: sensor profile

Direct Answer

1 Focal length equals 1.29 35mm equivalent focal length

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

For 2 Focal length, this profile returns 2.58 35mm equivalent focal length.

Converter Calculator

1 Focal length (mm) =
1.29 35mm equivalent focal length (mm)

Explanation

APS-H 27.9mm uses crop factor 1.29 and sensor width 27.9 mm. equivalent_mm = focal_mm x 1.29. For input 1 mm, output is 1.29 eq mm.

Focal length to 35mm equivalent focal length is profile-bound here: the selected sensor profile controls the mapping used by calculator and reference table.

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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)35mm equivalent focal length (mm)
1 1.29
2 2.58
5 6.45
10 12.9
14 18.06
18 23.22
24 30.96
35 45.15
50 64.5
85 109.65
100 129
135 174.15
200 258