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Depth of Field Calculator

This tool will calculate the depth of field for a given sensor or film type, aperture, focal length and subject distance (the distance from the camera to the person or object you are focusing on). A lower number means that a large proportion of the background will remain in sharp focus and a higher number means that a smaller proportion (if any) will be in focus.

Choose a preset to automatically change the sensor type to fit your camera. Please be aware that this tool is designed for cinematographers, not still photographers.

Preset
Sensor type
Custom Circle of Confusion mm
Lens aperture
Focal length mm
Subject distance


Link to this calculation