| 摘要 |
PURPOSE:To perform exposure control properly at any time by performing automatic focus adjustment and automatic exposure control without reference to which of the 1st optical photography system adapted to an open aperture photometric exposure arithmetic device and the 2nd optical photography system which is not adapted is mounted. CONSTITUTION:When the 1st optical photography system FPOS adapted to the open aperture photometric exposure arithmetic device is mounted, a mounted optical system detecting device ODM detects that and a controller CONT drives an automatic focus adjusting device and the open aperture photometric arithmetic device OMEOM to perform proper exposure control. When the 2nd optical photography system SPOS which is not adapted to this exposure arithmetic device is mounted, the device ODM detects that and the controller CONT drives the automatic focus adjusting device FDM and an actual aperture photometric arithmetic device RMEOM. Further, when neither of the optical systems EPOS and SPOS is mounted, the device ODM detects the unmounted state and the controller CONT turns off the automatic focus adjusting device to driven the actual aperture photometric arithmetic device RMEOM. |
