| 摘要 |
An electrical shutter includes a locating member which maintains a shutter drive member at rest at its start position and which is constrained in abutment against the drive member in conjunction with a charging member, which rotates in response to a film winding operation, as a prime mover spring is being charged, thus holding the drive member against inadvertent movement. The locating member also urges a detent member against an electromagnet which is operative to control the closing operation of a shutter. The electrical shutter also includes switches which are associated with a data entry unit and a strobo unit and which are closed in response to an opening operation of the shutter.
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