Two copies of Mamiya 6x7 film backs. It has a lever at the top, metal window at the back and you can open it with the lever at the side and you can remove the metal sheet at the back.
Two copies of Mamiya 6x7 film backs. It has a lever at the top, metal window at the back and you can open it with the lever at the side and you can remove the metal sheet at the back.