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Depth of Field Calculator

Science & Engineering

Hyperfocal distance, full frame/APS-C presets

Quick Answer

Depth of Field Calculator: Hyperfocal distance, full frame/APS-C presets. Depth of Field Calculator uses standard science & engineering formulas to compute accurate results instantly.

Sensor (circle of confusion)

mm
f/
m
Total depth of field
580 mm
Sharp from 2.74 m to 3.32 m
Near limit2.74 m
Far limit3.32 m
Hyperfocal30.84 m
Front / rear45% / 55%

Calculation steps

  1. 1Hyperfocal H = f²/(N·c) + f = 50²/(2.8×0.029) + 50 = 30.84 m
  2. 2Near limit Dn = s(H−f)/(H+s−2f) = 2.74 m
  3. 3Far limit Df = s(H−f)/(H−s) = 3.32 m
  4. 4Roughly 1/3 of the DOF is in front of the focus point, 2/3 behind (at normal distances).

DOF by aperture

ApertureNearFarTotal DOF
f/1.22.88 m3.13 m247 mm
f/1.42.86 m3.15 m288 mm
f/1.82.83 m3.20 m371 mm
f/22.81 m3.22 m413 mm
f/2.82.74 m3.32 m580 mm
f/42.64 m3.48 m837 mm
f/5.62.52 m3.71 m1.19 m
f/82.36 m4.13 m1.78 m
f/112.18 m4.81 m2.63 m
f/161.94 m6.63 m4.69 m
f/221.71 m12.14 m10.43 m
DOF shrinks with longer focal length, wider aperture, and closer focus. For landscapes, focus at the hyperfocal distance (or double the distance to the nearest object) so everything from H/2 to ∞ is sharp. "Bokeh" quality depends on aperture blades, not DOF.

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How to Use

  1. Enter known quantities: fill values and confirm units in the Depth of Field Calculator.
  2. Instant solution: unknowns solve live with the formula shown transparently.
  3. Use constant/material tables: standard physical constants and material data are listed on this page.
  4. Compare conditions: change inputs to compare scenarios.

Key Points

  • Depth of Field Calculator is a free online science & engineering tool — open and use, no sign-up.
  • All calculations run locally in your browser; your data never leaves the device.
  • Key capability: Hyperfocal distance, full frame/APS-C presets.
  • Results come with formulas and reference tables so you can verify every number.

Formula & How It Works

Depth of Field Calculator formula

Depth of Field Calculator uses standard science & engineering formulas to compute accurate results instantly.

FAQ

How do I use the Depth of Field Calculator?
Open the page and fill in the input fields — results update automatically. Hyperfocal distance, full frame/APS-C presets.
Are the results accurate?
Yes. Standard formulas and conversion factors are used and verified.
Is it free? Do I need to sign up?
Completely free. No registration, login or download required.
Does it work on mobile?
Yes. The responsive design works on phones, tablets and desktops.
Is my data saved?
No. Everything runs locally in your browser.

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Source & Updates

Based on CODATA recommended constants and standard physics formulas. Last updated: 2025-07

Last updated:

Formulas and content on this page are reviewed by the YiJianSuan team. For reference only — official sources prevail.

Maintained and periodically reviewed by the YiJianSuan editorial team — review process in ourEditorial Policy.

Cite this page: YiJianSuan. Depth of Field Calculator[EB/OL]. https://www.yijiansuan.com/en/c/science/dof

Results provided by this tool are for reference only and do not constitute professional advice.