| 摘要 |
PURPOSE: A light-exposing device is provided to obtain accurate light-exposing value by automatically calculating a light-exposing index according to a shutter opening angle in case of a cinema photographing. CONSTITUTION: A light-exposing device includes an external data input part, a controller(20) and a display part(30). The external data input part inputs a photographing condition by using an external key input part. The controller receives a film sensitivity from the external data input part as an input, stores the number of film photographing per a minute, stores a light-exposing time(i.e., shutter speed) per a minute, and calculates a light-exposing index. The display part informs a light-exposing value calculated by the controller. A shutter opening angle input part(13) inputs a shutter opening angle value. The opening angle of the shutter ranges from 0.5 to 359.5 deg. |
