| 摘要 |
<p>PURPOSE:To view all the information concerning one mode by constituting a device so that three photographing modes can be realized according to in what state a display board is mounted on a movable member or whether this display board is not mounted. CONSTITUTION:At the time of selecting a 1st exposing mode(shutter time priority), the display board 30 is mounted on a dial main body 20 with a display surface 32 up and an attaching screw 40 is screwed in. At the time of selecting a 2nd exposing mode(aperture priority), the display board 30 is mounted on the main body 20 with its back surface up and the screw 40 is screwed in. Since the position of the tip 41 of the screw 40 with respect to the rotary shaft of the main body 20 is different between the above two cases, a signal for electrically switching the 1st and the 2nd modes is obtained. Furthermore, by using a camera without mounting the display board 30 on the main body 20, a 3rd exposing mode(variable program) is executed. Since the information in one exposing mode is respectively displayed on every surface of the display board 30 and on the surface 21 of the main body 20 in this device, all the information is viewed.</p> |
