| 摘要 |
PURPOSE:To execute photographing without inconvenience, even if a diaphragm value which becomes a correct exposure cannot be calculated, by setting a diaphragm to a prescribed diaphragm value, 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 the shutter speed priority automatic exposure control mode has been set, and also, the bulb has been set, the camera is constituted so that a diaphragm is set to a prescribed diaphragm. That is, in case the bulb has been set, and simultaneously, the shutter speed priority automatic exposure control mode has been set, by the exposure factor setting members 3, 4, the diaphragm is set to the diaphragm value which has been set in advance. Accordingly, it becomes unnecessary to calculate the diaphragm value which becomes a correct exposure. In such a way, bulb photographing can be executed without hindrance. |
