Aperture (f-number) to Equivalent aperture (f-number, DoF basis) for Action camera 1/2.3" class

1 Aperture (f-number) = 5.6 Equivalent aperture (f-number, DoF basis) ยท camera-equivalence calculation for Action camera 1/2.3" class

Direct Answer

On Action camera 1/2.3" class, f/5.6 corresponds to about f/31.36 on a full-frame depth-of-field basis

This result uses the fixed Action camera 1/2.3" class sensor profile (crop factor 5.6).

For 1.4 Aperture (f-number), this corresponds to 7.84 Equivalent aperture (f-number, DoF basis) on Action camera 1/2.3" class.

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5.6 Equivalent aperture (f-number, DoF basis)

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Explanation

Formula: equivalent_f = f_number x 5.6. Why: this page keeps Action camera 1/2.3" class fixed, so crop factor and sensor width stay explicit for every calculation.

Action camera 1/2.3" class: a sensor profile with crop factor 5.6 and sensor width (horizontal) 6.4 mm, used as the fixed framing basis for this page.

Aperture (f-number): a camera-equivalence quantity in this family that depends on the selected crop model.

Equivalent aperture (f-number, DoF basis): a camera-equivalence quantity in this family that depends on the selected crop model.

This route is useful when you know the actual lens aperture on Action camera 1/2.3" class and want the full-frame depth-of-field equivalent.

This page is sensor-profile dependent rather than universal because camera equivalence changes with sensor geometry (Action camera 1/2.3" class).

Method & Sensor Profile

  • Model basis: Action camera 1/2.3" class sensor profile with crop factor 5.6 and sensor width 6.4 mm.
  • Profile reference: Action camera 1/2.3" class (crop factor 5.6, sensor width 6.4 mm).
  • Consistency rule: forward and reverse pages keep the same sensor profile; only the formula direction changes.

Common Conversion Values

Aperture (f-number)Equivalent aperture (f-number, DoF basis)
1.4 7.84
2 11.2
2.8 15.68
4 22.4
5.6 31.36
8 44.8
11 61.6
16 89.6

Frequently Asked Questions

Which sensor assumptions are fixed for aperture f-number to full-frame equivalent f-number?

Aperture f-number to full-frame equivalent f-number is fixed to Action camera 1/2.3" class, crop factor 5.6, sensor width 6.4 mm.

How do I reverse f to eq f for Action camera 1/2.3" class?

Use the opposite-direction page for Action camera 1/2.3" class to convert equivalent aperture (f-number, dof basis) back to aperture (f-number) with the same sensor assumptions.

Can aperture f-number to full-frame equivalent f-number replace full lens-design simulation?

No. Aperture f-number to full-frame equivalent f-number provides framing and geometry approximations, not full optical-model behavior.

Does equivalent f-number change exposure?

No. Equivalent f-number here is for depth-of-field comparison only. Exposure (light transmission) does not change.