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Calcimator

Depth of Field Calculator

Calculate the depth of field, hyperfocal distance, and near/far focus limits based on lens and camera settings.

Inputs

mm
f/
ft

Results

Near Focus Limit

2.73 m

≈ 18 smartphones

Total Depth of Field

0.6

Far Focus Limit3.33
Hyperfocal Distance29.81 m
Circle of Confusion0.03 mm
How to Use This Calculator
  1. Enter Focal Length, Aperture (f-stop), and Distance to Subject.
  2. Set Sensor Size, Full Frame (36mm), and APS-C (23.5mm).
  3. Adjust Micro Four Thirds (17.3mm), 1-inch (13.2mm) as needed.
  4. Review Near Focus Limit and Total Depth of Field (m).
  5. Use Far Focus Limit and Hyperfocal Distance (m) to inform your decision.

How the result changes with Distance to Subject

Distance to SubjectNear Focus LimitTotal Depth of Field
1,00028.95 m∞
3,50029.56 m∞
6,50029.68 m∞
9,00029.71 m∞

What each input means

Focal Length
The focal length of your lens in millimeters.
Aperture (f-stop)
The f-number of the lens aperture. Lower values mean a wider opening.
Distance to Subject
Distance from the camera to the subject in meters.
Sensor Size
The sensor format of your camera. Affects the circle of confusion calculation.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Focal Length = 50, Aperture (f-stop) = 2.8, Distance to Subject = 3, Sensor Size = 1 = 4 input(s) provided
  2. Calculate Near Focus Limit
    2.73 = 2.73
  3. Calculate Total Depth of Field
    0.6 = 0.6
  4. Calculate Far Focus Limit
    3.33 = 3.33
  5. Calculate Hyperfocal Distance
    29.81 = 29.81

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