Depth of Field Calculator

Estimate near and far focus limits, total depth of field, and hyperfocal distance for machine vision lenses.

Inputs

Lens, aperture, and focus distance.

Sensor size

Focal length

F-number

f/#

Subject distance

Circle of confusion

Results

Acceptable focus range around the subject plane.

Circle of confusion used

Hyperfocal distance

Near focus limit

Far focus limit

Total depth of field

DoF vs subject distance

How it works: Uses standard thin-lens DoF formulas. Circle of confusion defaults to sensor diagonal / 1500 when left blank. Results assume focused at the subject distance.