Camera system

Details Camera system Camera system

1995-02-21

1997-05-13

Adams, Russell E.

Photography

Exposure control system responsive to focal length

396 93, G03B 700

Patent

active

056301804

ABSTRACT:
An interchangeable lens camera including an interchangeable lens having a photographic optical system, a lens mount to mount the interchangeable lens, a lens side communication terminal to communicate, a storage circuit to store lens data representing an optical property of the photographic optical system of the interchangeable lens, and a lens side communication device to transmit the lens data stored in the storage circuit through the lens side communication terminal, and a camera body having a body mount engageable with the lens mount to mount the interchangeable lens on the camera body, a sensor to receive light from a field through the photographic optical system and to generate an output corresponding to the light received, a processing circuit to process the output generated from the sensor and to output a condition signal, based on the processed output, indicating a condition of a subject image formed by the photographic optical system, a body side communication terminal connected to the lens side communication terminal to communicate with the lens side communication terminal, a body side communication device to communicate with the lens side communication device, through the body side communication terminal and the lens side communication terminal, to receive the lens data transmitted from the lens side communication device, and a correction circuit to correct the condition signal based on the lens data.

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