| 摘要 |
PURPOSE:To obtain pictures of good quality which are free from an effect of the undesired light, by always actuating an eyepiece shutter when an electronic viewfinder device is used. CONSTITUTION:The foot part 6 of an electronic viewfinder device 4 is inserted to a shoe 8 of a video camera and held there with pressure. In this case, the wall surface 7a of a projection 7 of the device 4 presses an end part 23a of a bell crank 23 toward an arrow mark and revolves the crank 23 counterclockwise against a tension spring 26. As a result, an eyepiece shutter 3a interlocking the crank 23 is revolved clockwise by a tension spring 22 to cut off an optical path between a viewfinder lens F1 and an eyepiece F2. When the device 4 is removed, the wall surface 7a moves back. Thus the crank 23 and the shutter 3a are reset to their original positions by the springs 26 and 22 to open an optical path between the lens F1 and the eyepiece F2. |
