The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
Depth of Field Calculator calculate Hyperfocal, near, and far distances and also Depth of Field value.Depth of Field (DOF) is the range of distance in a photo that appears to be in sharp focus. Depth of field is a creative decision and one of your most important choices when composing nature photographs. This is a useful photographic tool for assessing what camera settings are required to achieve a desired level of sharpness.