The WDS-618 is a complete rear frame to accomodate a digital back with Leaf Afi or Sinar HY6 interface to the WDS-body working with the WDS/WRS Lenspanels with Digitar Series Lenses.

The design of the digital back from Leaf and Sinar allows for mounting in landscape and portrait mode.

The rear frame has a central interface plate SLW-81 that can also be switched between landscape and portrait mode.