Widget Watch: Depth of Field Calculator

The Depth of Field Calculator widget (DoFC for short) is a handy widget for those who'd like to learn a little more about DoF (Wikipedia link), and those who could use a quick tool to help get that perfect shot out in the field. You're able to enter your focal length, f-stop and distance to subject to see a meter of near focus (beginning of DoF), distance of sharpness to the subject, distance from subject to blurred background and the far focus (end of DoF). The author links to a few different resources to learn more about DoF and provides a manual (pdf link) to help get you off the ground.