DOFcalc is an Android application developed by 513 that calculates the depth of field. It calculates the depth of field for each aperture value based on three inputs - the size of the imaging surface (film, image sensor), the focal length of the lens, and the distance to the subject.

The application displays four main points of information - hyperfocal distance, near and far depth of field, and the distance from the camera to the depth of field. The imaging surface size ranges from micro four-thirds to large format (4*5). The aperture value ranges from F1 to 40, and it can be displayed in one-stop, half-stop, or one-third stop increments.

DOFcalc is a free app and is categorized under multimedia, specifically photography. It is a useful tool for photographers who want to calculate the depth of field for their shots. The app is easy to use, and the user interface is straightforward.