Depth of Field Calculator

This Depth of Field Calculator will help you to determine depth of field under various conditions. Input the required values, press the calculate button and the results will be displayed at the bottom. Please note that for Digital Cameras with a crop factor (35mm equivalent focal length), use the APS negative formats.

  Negative Format
  Lens focal length
  Selected aperture
  Subject distance:   Metres   Feet

    Hyperfocal distance for this lens/aperture combination
    Near limit of acceptable sharpness
    Far limit of acceptable sharpness
    Total depth of field

Originally authored by Alistair Houston from  and modified by Graham Watson to suit his needs.

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Last modified:  August 10, 2019