Full-frame equivalent f-number to aperture f-number at Medium format 53.4x40
1 Equivalent aperture = 1.492537 Aperture · profile-dependent conversion · context: sensor profile
Direct Answer
1 Equivalent aperture equals 1.492537 Aperture
This result depends on the selected profile context: sensor profile.
For 2 Equivalent aperture, this profile returns 2.985075 Aperture.
Converter Calculator
1 Equivalent aperture (f-number, DoF basis) =
1.492537 Aperture (f-number)
Explanation
Medium format 53.4x40 uses crop factor 0.67 and sensor width 53.4 mm. f_number = equivalent_f / 0.67. For input 1 eq f, output is 1.49253731343 f.
For Equivalent aperture to Aperture, 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.
Common Conversion Values
| Equivalent aperture (f-number, DoF basis) | Aperture (f-number) |
|---|---|
| 1 | 1.492537 |
| 2 | 2.985075 |
| 5 | 7.462687 |
| 10 | 14.925373 |
| 14 | 20.895522 |
| 18 | 26.865672 |
| 24 | 35.820896 |
| 35 | 52.238806 |
| 50 | 74.626866 |
| 85 | 126.865672 |
| 100 | 149.253731 |
| 135 | 201.492537 |
| 200 | 298.507463 |