Full-frame equivalent f-number to aperture f-number at Smartphone 1/2.55" class

1 Equivalent aperture = 0.166667 Aperture · profile-dependent conversion · context: sensor profile

Direct Answer

1 Equivalent aperture equals 0.166667 Aperture

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

For 2 Equivalent aperture, this profile returns 0.333333 Aperture.

Converter Calculator

1 Equivalent aperture (f-number, DoF basis) =
0.166667 Aperture (f-number)

Explanation

Smartphone 1/2.55" class uses crop factor 6 and sensor width 6 mm. f_number = equivalent_f / 6. For input 1 eq f, output is 0.166666666667 f.

Equivalent aperture to Aperture 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

Equivalent aperture (f-number, DoF basis)Aperture (f-number)
1 0.166667
2 0.333333
5 0.833333
10 1.666667
14 2.333333
18 3
24 4
35 5.833333
50 8.333333
85 14.166667
100 16.666667
135 22.5
200 33.333333