Depth-of-field calculator

Calculate the depth-of-field (the 'bokeh' effect) from the technical parameters of your lens/camera and your subject distance.


  • Circle of Confusion: 0.029 mm
    the largest blur spot that will still be perceived by the human eye as a point
    is an empirical constant, only influenced by crop factor
  • Hyperfocal distance: 60.34 meter
    distance beyond which all objects can be brought into an acceptable focus
    influenced by focal length and aperture
  • Objects will be in focus from 8.59m to 11.97m
  • In-focus range = 3.38m = 33.8% of subject distance
  • Medium depth of field


↙️ 📷 Camera↙️ 🧍 Subject @ 10 m

Composition calculator for focal length 70 mm, distance 10 meter