The WDS-617 is a complete rear frame to accomodate a digital back with Contax 645 interface to the WDS-body working with the WDS/WRS Lenspanels with Digital Series Lenses.

The rear frame has a central interface plate SLW-87 that can be switched between landscape and portrait mode.

The SLW-87 is compatible with the WRS series, Actus DB, Actus-XL-DB and more.