DOF Easy is unique among Depth of Field Calculators. With most DOF Calculators you enter the focus distance and the aperture and the calculator tells you whether your scene will render in focus. DOF Easy starts with information about the scene (a range of distances) and DOF Easy tells you where to focus and what aperture to use. It also shows blur amounts as a function of distance. Users can easily see how the amount of blur, in pixels, changes with distance from the focal plane.
DOF Easy is designed to be "easy". While all inputs are required, defaults are available for most of them. Key inputs are saved between runs so they do not have to be re-entered. Key outputs are shown first. These include optimal focus distance and aperture, and the amount of blur at the near and far points in your scene. Blur diameters are stated in simple to understand pixels as well as in millimeters. The hyper-focal distance is also shown. The program also computes a variety of additional outputs. These include information about the sensor, the lens, the diffraction limited aperture, and a detailed table showing how blur changes with distance.