Exposure control apparatus and photographing lens in camera

Details Exposure control apparatus and photographing lens in camera Exposure control apparatus and photographing lens in camera

1990-05-30

1992-06-30

Adams, Russell E.

354286, G03B 708

Patent

active

051267802

ABSTRACT:
An exposure control apparatus of a camera having a memory on a photographing lens for storing lens information of the photographing lens. A lens information input device is provided on the camera body to which the photographing lens is mounted, for inputting the lens information stored in the memory. The memory has optimum diaphragm data which is determined in accordance with a predetermined specific condition of the photographing lens and which is stored in the memory as the lens information. The camera body includes an exposure operating device which arithmetically sets an exposure parameter based on the optimum diaphragm data which is input to the camera body through the lens information inputting device from the memory.

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