I recently acquired a horseman 4x5 lx-c view camera without an instruction manual. Can anybody tell me where I can get a copy of this manual? I contacted horseman and Schneider in NY and also Bell and Howell Literature to no avail. Bell and Howell carry a book called Horseman Optical-bench Modular camera. Since the LX-C 8s considered an optical bench camera will this manual help me with the depth of field computer in the LX-C. Any info on this topic will be appreciated.