| 摘要 |
A timing circuit is employed for the shutter in a reflex camera having a retractable mirror. A switch for energizing the timing circuit is disposed in the path of movement of a driving member which actuates the shutter and is engageable with a driving mechanism for raising the mirror to photo-taking position and retracting the mirror into viewing position. When the driving member is positioned to place the mirror in the viewing position, the switch is open. When the driving member begins movement to place the mirror in the photo-taking position, the driving member acts to close the switch. The timing circuit, including an electromagnet, is energized when the switch is closed in response to the release of the shutter to the open position. The timing circuit maintains the electromagnet in energized condition for a predetermined time, after which the shutter is released.
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