| 摘要 |
PURPOSE:To automatically correct exposure information and enable good exposure condition to be always obtained in close-up photography by performing operation and correction of the F value information of the lens in an arithmetic circuit by the distance information from a distance detector. CONSTITUTION:The distance information l outputted from a distance detector 2, the focal length information f outputted from a focal length-voltage converter 3 and the F value information outputted from an F-value-voltage converter 4 are inputted to an arithmetic circuit 1 for correction, where the effective F value FD is operated. This effective F value FD is inputted to an exposure control circuit 5 provided with an arithmetic circuit, where the shutter speed is operated based on the effective F value FD. |
