I visited a photographer in Kitchener Ontario (Canada) about 1968. He did a lot of dye transfer and large format photography in his studio. Mainly he did things like advertising and catalog photos. There was this camera, in the studio, set up on a tripod. A strange looking affair that took three 4x5 B&W negatives. Does anyone know the camera I'm referring too? It looked fairly modern, some metal and black leather.