| 摘要 |
PROBLEM TO BE SOLVED: To easily and quickly exchange a lens in a lens interchangeable type camera. SOLUTION: By fitting the interchangeable lens 1 to a lens mount 2 and hanging it from a neck by using a belt 5, the lens of the lens interchangeable type camera can be easily and quickly exchanged. Besides, a picture actually taken at a film surface through the lens 1 can be confirmed by a finder 4.
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