Computer software and hardware for use in the field of digital photography, namely, computer software and hardware for optimizing the auto-focus systems used in digital SLR cameras with auto-focus adjustment capability, namely, for determining the optimum setting for the auto-focus micro-adjustment value or auto-focus fine-tune value as entered into the menu system of the camera, namely, computer software and hardware to assist in the matching of camera lenses and bodies through the use of th...