Here’s an unusual camera that I acquired about a year ago. It’s called a Mamiya Magazine 35.
Outwardly it looks like, and works similar to, a perfectly conventional 35mm rangefinder camera. Things change, however, when it comes to loading the film. Instead of loading it into the camera body in the conventional way, it loads into a separate magazine that can be separated from the main part of the body by pressing a button on the base to release a disc that rotates from the ‘lock’ to the ‘unlock’ position. As the disc is rotated, a metal shutter inside the magazine slides across the film plane to protect the film. When the disc is fully rotated and the metal shutter safely in place, the magazine containing the film cassette and take-up spool can be slid away, and entirely separated, from the lens and shutter assembly.
The instruction book recommended that film was pre-loaded with the magazine separated from the camera before the two were joined for shooting. The actual loading followed the same principles as loading any normal 35mm camera. In this way, a photographer could have as many magazines and film types as required ready to be interchanged at a moment’s notice.