| 摘要 |
In operative relation with a film counter, a detection mechanism detects film transport from the starting position to the first photographic position, the mechanism further being adapted to detect whether or not the film is being wound up on a take-up spool. The detection mechanism is associated with a release button locking mechanism and a film transport blocking mechanism so that until a predetermined amount of film has been wound up on the take-up spool, the film can be advanced without releasing the shutter. Upon detecting the winding of a predetermined amount of the film, the film transport blocking mechanism blocks the film winding operation and the release button is freed from locking. In operative relationship with subsequent shutter release and film winding operation, normal release button locking and film transport blocking operations are effected. Also mounted in the camera in operative relationship with the above mechanisms in another detection mechanism to be actuated upon detecting the loading of a film magazine, the magazine detection mechanism being so adapted that when a film magazine is not loaded the film transport blocking mechanism and the release button locking mechanism are allowed to function in operative relationship with film winding and shutter release operations and that upon detecting loading of the magazine, the magazine detection mechanism frees the film winding mechanism, permitting the foregoing mechanisms to operate accurately.
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