| 摘要 |
PURPOSE:To prevent inappropriate photographing by constituting the titled camera so that an exposure control operation cannot be started, in case a shutter speed priority automatic exposure control mode has been set, and also, a bulb has been set. CONSTITUTION:In a camera which can set simultaneously a shutter speed priority automatic exposure control mode and a bulb by exposure factor setting members 3, 4, in case a shutter speed priority automatic exposure control mode has been set, and also, a bulb has been set, the camera is constituted so that an exposure control operation cannot be started. That is, in case the bulb is set by the exposure factor setting members 3, 4, and also, the shutter speed priority automatic exposure control mode is set, and a release button 5 is pushed, the exposure control operation is not started. Even if a diaphragm which becomes a correct exposure cannot be calculated, there is no hindrance. Also, in case the shutter speed priority automatic exposure control mode has been set, when the bulb is set due to a misoperation, or the exposure factor setting member moves carelessly and becomes the bulb, as well, the exposure control operation is not started. In such a way, it does not occur that in appropriate photographing is executed. |
