| 摘要 |
PURPOSE:To obtain plural exposure arithmetic functions by providing both a camera body and an adapter for exposure control with the exposure arithmetic functions, and performing exposure control on the basis of the arithmetic result of the camera body when no arithmetic result is sent out of the adapter. CONSTITUTION:A switch S2 is a release switch which is closed by the 2nd stage of depression of a release button and when the S2 is closed, exposure control operation is started. Further, a signal line BS2 is connected from a back circuit BCKC in parallel to it and a signal for starting photographing operation is sent to the camera body when a specific number of photographs are taken under the control of the BCKC as interval photography or while the exposure is deviated from proper exposure by a constant value at each time. Further, the BCKC checks the state of the S2 of the camera body and sends data which inhibits exposure control operation from being entered to the camera body unless the S2 is on after the number of set frames are exposed by bracket photography. Consequently, photography is performed in a photographic mode that the camera body does not have. |
