The Green Pod

Depth of Field Calculator

Instructions:
Focal Length

Distance in Feet?

How Sharp?
35mm film
Large Print
Extra Sharp


  • Select a Focal Length
  • Select the focus distance (used only for the depth of field calculation)
  • Select the "perceived" sharpness (see below for an explanation - If you're not sure, select "large print")
  • Click the "Calculate" button
  • I'll display a printable Hyperfocal Distance and Depth of Field Chart for your selected criteria (Hint: You can also cut & paste the chart into a word processor)
Depth of Field Definitions:
Depth of Field is the area between the maximum and minimum distances from a camera to objects in a scene that can be captured in acceptably sharp focus.

-or-

Depth of Field is the total distance, on either side of the point of focus, appears to be sharp in the final print.

An important point: Depth of field is perceived. That means that these numbers are NOT exact. If you make a 4x6 print you may get the results you expect. With a 16x20 print, you may find your depth of field was MUCH less. Always be conservative when using depth of field charts. Use the depth of field preview in your camera too!




Hyperfocal Distance Definition:
The focus distance of a camera lens that offers the greatest depth of field. When a camera is focused at the hyperfocal distance, all objects from half the hyperfocal distance to infinity are within the camera's depth of field.

Note: "How Sharp" refers to the perceived sharpness. As an image is enlarged, the perceived sharpness becomes less. This option changes the "Circle of Confusion" value in the DOF calculations.




All images and content © Copyright 1999-2014 Bert Sirkin