| 摘要 |
A photographic camera having a focal plane shutter and also having an interchangeable objective unit including an objective shutter, together with electronic control means for controlling the operations of both shutters. A simple change-over switch enables the user to select which of the two shutters will be effective to control any particular exposure. The camera may also be used with a simple objective unit not having an objective shutter therein, and in that case an interlock insures that the change-over switch will be set for effective operation of the focal plane shutter.
|
