The Mamiya 645AFD body differs from the traditional 645AF camera by enabling MSC (Mamiya Serial Communication) data transfer of all camera functions to external capture devices including digital backs. The Mamiya 645AF is a Medium Format Autofocus System for professionals. Mamiya pioneered the 645 SLR system over 25 years ago, and with the new 645AF, the newest autofocus addition to the system, they continue their long tradition of expertise and excellence. The Mamiya 645AF offers many new and innovative features combined with world-class Mamiya performance.