| 摘要 |
PURPOSE:To prevent the waste of a battery, by switching the exposure to a mechanical constant exposure without connecting the battery to an electronic shutter and connecting the battery only to a flash device when the flash device is used. CONSTITUTION:In case of flash exposure, a changeover switch 22 is connected to the side of a contact (b), and an electronic switching circuit E is made unoperated, and a flash device is made operated. When a release member 11 is depressed, a switch 19 is closed to charge a main capacitor C1 of the flash device. Since an iron core 15 is not excited by the switch 22, an interlocking lever 13 is turned clockwise through a spring 17, and a movable iron core 14 is moved upward through a fork member 13c. When the release member 11 is depressed furthermore, a detaining pawl 9 is turned clockwise by a pin 11e to disengage a standing and bending part 9b and a projection 5e from each other. A driving member runs to the right, and a cam face 7b of a driving lever 7 turns a switching lever 3 clockwise while carrying a standing and bending part 3b of the switching lever 3, and a sector 2 is opened to determine the exposure. Thus, the waste of a battery Q is prevented. |
