The Cambo 4x5 Sliding Back is uniquely designed for the Ultima 45 camera systems.This sliding back for Ultima 45 has printed ground glass with marks for CCD formats and also features a freshnellensThese single shot digital backs have to be ordered with a choice of medium format interface plates for use with the Hasselblad, Mamiya or ContaxSeparate versions are available for the Leaf AFi or Sinar HY6The Cambo 4x5 Sliding Back comes with an optional Reflex Viewer SLV-945 or Direct Viewer SLV-616